diff --git a/LICENSE b/LICENSE
deleted file mode 100644
index 733c0723..00000000
--- a/LICENSE
+++ /dev/null
@@ -1,675 +0,0 @@
-                    GNU GENERAL PUBLIC LICENSE
-                       Version 3, 29 June 2007
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-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    {one line to give the program's name and a brief idea of what it does.}
-    Copyright (C) {year}  {name of author}
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
-    {project}  Copyright (C) {year}  {fullname}
-    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
-    This is free software, and you are welcome to redistribute it
-    under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License.  Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
-  The GNU General Public License does not permit incorporating your program
-into proprietary programs.  If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library.  If this is what you want to do, use the GNU Lesser General
-Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
-
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 00000000..49cc83d2
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        https://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
diff --git a/README.md b/README.md
index d2e241b0..49266ee4 100644
--- a/README.md
+++ b/README.md
@@ -73,15 +73,16 @@ Build types (`Release` by default):
 The `BUILD_FAST` option (`OFF` by default) switches from safe (constant-time) 
 functions to fast (non-constant-time) ones.
 
-The `BASH_PLATFORM` option (`BASH_64` by default) requests to use a specific 
-implementation of the STB 34.101.77 algorithms optimized for a given hardware platform. 
-The request may be rejected if it conflicts with other options.
+The `BASH_PLATFORM` option (`BASH_64` by default) requests to use a specific
+implementation of the STB 34.101.77 algorithms optimized for a given hardware
+platform. The request may be rejected if it conflicts with other options.
 
 License
 -------
 
-Bee2 is released under the terms of the GNU General Public License version 3
-(GNU GPLv3). See [LICENSE](LICENSE) for more information.
+Bee2 is distributed under the Apache License version 2.0. See 
+[Apache 2.0](http://www.apache.org/licenses/LICENSE-2.0) or 
+[LICENSE](LICENSE.txt) for details.
 
 Related projects
 ----------------
diff --git a/cmd/bsum/bsum.c b/cmd/bsum/bsum.c
index 162c5cbd..f520225f 100644
--- a/cmd/bsum/bsum.c
+++ b/cmd/bsum/bsum.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2014.10.28
 \version 2022.07.05
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/cmd.h b/cmd/cmd.h
index 39a26d77..3fb877fa 100644
--- a/cmd/cmd.h
+++ b/cmd/cmd.h
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2022.06.09
 \version 2022.10.31
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/cmd_main.c b/cmd/cmd_main.c
index 5a0e2c26..ac254fc0 100644
--- a/cmd/cmd_main.c
+++ b/cmd/cmd_main.c
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2022.06.07
 \version 2022.11.03
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_arg.c b/cmd/core/cmd_arg.c
index 2730aab9..8ea725fb 100644
--- a/cmd/core/cmd_arg.c
+++ b/cmd/core/cmd_arg.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.08
 \version 2022.10.25
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_cvc.c b/cmd/core/cmd_cvc.c
index 12840285..d062d228 100644
--- a/cmd/core/cmd_cvc.c
+++ b/cmd/core/cmd_cvc.c
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2022.08.20
 \version 2022.10.25
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_file.c b/cmd/core/cmd_file.c
index cef1c75d..83b29623 100644
--- a/cmd/core/cmd_file.c
+++ b/cmd/core/cmd_file.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.08
 \version 2022.10.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_privkey.c b/cmd/core/cmd_privkey.c
index bea30884..510cfb70 100644
--- a/cmd/core/cmd_privkey.c
+++ b/cmd/core/cmd_privkey.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.20
 \version 2022.10.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_pwd.c b/cmd/core/cmd_pwd.c
index 32489898..56d5355c 100644
--- a/cmd/core/cmd_pwd.c
+++ b/cmd/core/cmd_pwd.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.13
 \version 2022.10.26
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_rng.c b/cmd/core/cmd_rng.c
index 93855ef5..e6759460 100644
--- a/cmd/core/cmd_rng.c
+++ b/cmd/core/cmd_rng.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.08
 \version 2022.10.28
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_sig.c b/cmd/core/cmd_sig.c
index 3b8cc3af..59125b0c 100644
--- a/cmd/core/cmd_sig.c
+++ b/cmd/core/cmd_sig.c
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2022.08.20
 \version 2022.10.31
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/core/cmd_term.c b/cmd/core/cmd_term.c
index 518e6701..306e9f56 100644
--- a/cmd/core/cmd_term.c
+++ b/cmd/core/cmd_term.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.08
 \version 2022.10.25
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/cvc/cvc.c b/cmd/cvc/cvc.c
index de282390..e59634ed 100644
--- a/cmd/cvc/cvc.c
+++ b/cmd/cvc/cvc.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.07.12
 \version 2022.10.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/es/es.c b/cmd/es/es.c
index ac8a5dab..ec8769ae 100644
--- a/cmd/es/es.c
+++ b/cmd/es/es.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2021.04.20
 \version 2022.11.04
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/kg/kg.c b/cmd/kg/kg.c
index fd48bbde..c409a1c3 100644
--- a/cmd/kg/kg.c
+++ b/cmd/kg/kg.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.08
 \version 2022.10.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/pwd/pwd.c b/cmd/pwd/pwd.c
index 9a25f14f..f859331b 100644
--- a/cmd/pwd/pwd.c
+++ b/cmd/pwd/pwd.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.23
 \version 2022.10.21
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/sig/sig.c b/cmd/sig/sig.c
index 27701d19..3dc88564 100644
--- a/cmd/sig/sig.c
+++ b/cmd/sig/sig.c
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2022.08.01
 \version 2022.10.27
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/stamp/stamp.c b/cmd/stamp/stamp.c
index 3bb9fe9f..5b06f8a2 100644
--- a/cmd/stamp/stamp.c
+++ b/cmd/stamp/stamp.c
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2011.10.18
 \version 2022.06.23
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */ 
 
diff --git a/cmd/stamp/stamp.rc b/cmd/stamp/stamp.rc
index 6444e116..d2e4c006 100644
--- a/cmd/stamp/stamp.rc
+++ b/cmd/stamp/stamp.rc
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2011.10.18
 \version 2013.02.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/stamp/stamp_pe.c b/cmd/stamp/stamp_pe.c
index b8302964..de98696a 100644
--- a/cmd/stamp/stamp_pe.c
+++ b/cmd/stamp/stamp_pe.c
@@ -5,8 +5,8 @@
 \project bee2/cmd
 \created 2011.10.18
 \version 2016.05.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/cmd/ver/ver.c b/cmd/ver/ver.c
index e6174ce6..abbe7cfa 100644
--- a/cmd/ver/ver.c
+++ b/cmd/ver/ver.c
@@ -5,8 +5,8 @@
 \project bee2/cmd 
 \created 2022.06.22
 \version 2022.10.21
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/apdu.h b/include/bee2/core/apdu.h
index dff31bad..e49f8478 100644
--- a/include/bee2/core/apdu.h
+++ b/include/bee2/core/apdu.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2022.10.31
 \version 2022.11.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/b64.h b/include/bee2/core/b64.h
index 1bcfde93..dedb10b9 100644
--- a/include/bee2/core/b64.h
+++ b/include/bee2/core/b64.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2016.06.16
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/blob.h b/include/bee2/core/blob.h
index d75e7e55..0f2dd124 100644
--- a/include/bee2/core/blob.h
+++ b/include/bee2/core/blob.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.01
 \version 2022.06.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/dec.h b/include/bee2/core/dec.h
index fe213dfe..88f5007e 100644
--- a/include/bee2/core/dec.h
+++ b/include/bee2/core/dec.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.11.09
 \version 2015.12.08
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/der.h b/include/bee2/core/der.h
index 595a7ccc..01a41b81 100644
--- a/include/bee2/core/der.h
+++ b/include/bee2/core/der.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.04.21
 \version 2022.11.01
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/err.h b/include/bee2/core/err.h
index f223d961..30e8089a 100644
--- a/include/bee2/core/err.h
+++ b/include/bee2/core/err.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.07.09
 \version 2022.10.31
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/hex.h b/include/bee2/core/hex.h
index c17db7c4..374f2cf1 100644
--- a/include/bee2/core/hex.h
+++ b/include/bee2/core/hex.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.29
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/mem.h b/include/bee2/core/mem.h
index a9ede888..b5745c59 100644
--- a/include/bee2/core/mem.h
+++ b/include/bee2/core/mem.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.07.16
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/mt.h b/include/bee2/core/mt.h
index 84f1817d..4178f5de 100644
--- a/include/bee2/core/mt.h
+++ b/include/bee2/core/mt.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.10.10
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/obj.h b/include/bee2/core/obj.h
index bdfc8ff9..1038ce99 100644
--- a/include/bee2/core/obj.h
+++ b/include/bee2/core/obj.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.04.14
 \version 2014.04.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/oid.h b/include/bee2/core/oid.h
index 0370fed0..2dbf64cf 100644
--- a/include/bee2/core/oid.h
+++ b/include/bee2/core/oid.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.02.04
 \version 2022.07.06
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/prng.h b/include/bee2/core/prng.h
index 27a238fd..093eae6f 100644
--- a/include/bee2/core/prng.h
+++ b/include/bee2/core/prng.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.05.02
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/rng.h b/include/bee2/core/rng.h
index 316faaf0..93b2ac49 100644
--- a/include/bee2/core/rng.h
+++ b/include/bee2/core/rng.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.10.13
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/safe.h b/include/bee2/core/safe.h
index 78fa4349..2a8d3280 100644
--- a/include/bee2/core/safe.h
+++ b/include/bee2/core/safe.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.10.07
 \version 2019.06.13
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/stack.h b/include/bee2/core/stack.h
index 673129e6..ef3a6a39 100644
--- a/include/bee2/core/stack.h
+++ b/include/bee2/core/stack.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.05.10
 \version 2019.06.13
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/str.h b/include/bee2/core/str.h
index 9342df7c..37dd6ebc 100644
--- a/include/bee2/core/str.h
+++ b/include/bee2/core/str.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.02.04
 \version 2022.07.14
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/tm.h b/include/bee2/core/tm.h
index 7421b227..94521e2a 100644
--- a/include/bee2/core/tm.h
+++ b/include/bee2/core/tm.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.10.13
 \version 2022.07.18
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/u16.h b/include/bee2/core/u16.h
index fd099217..282639e3 100644
--- a/include/bee2/core/u16.h
+++ b/include/bee2/core/u16.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.28
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/u32.h b/include/bee2/core/u32.h
index 2dcc05b5..8133c7d6 100644
--- a/include/bee2/core/u32.h
+++ b/include/bee2/core/u32.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.28
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/u64.h b/include/bee2/core/u64.h
index 925e7976..df7b39c5 100644
--- a/include/bee2/core/u64.h
+++ b/include/bee2/core/u64.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.28
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/util.h b/include/bee2/core/util.h
index d5bccea9..8dc9c499 100644
--- a/include/bee2/core/util.h
+++ b/include/bee2/core/util.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.07.16
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/core/word.h b/include/bee2/core/word.h
index 2e181383..ff3e509d 100644
--- a/include/bee2/core/word.h
+++ b/include/bee2/core/word.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.07.18
 \version 2019.06.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/bake.h b/include/bee2/crypto/bake.h
index 4a12dde9..7922eb3a 100644
--- a/include/bee2/crypto/bake.h
+++ b/include/bee2/crypto/bake.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.04.14
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/bash.h b/include/bee2/crypto/bash.h
index 9b4eb8bd..790aad56 100644
--- a/include/bee2/crypto/bash.h
+++ b/include/bee2/crypto/bash.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.07.15
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/bels.h b/include/bee2/crypto/bels.h
index 9afb4cf2..bf32407a 100644
--- a/include/bee2/crypto/bels.h
+++ b/include/bee2/crypto/bels.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.05.14
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/belt.h b/include/bee2/crypto/belt.h
index a47f406c..bd2f6289 100644
--- a/include/bee2/crypto/belt.h
+++ b/include/bee2/crypto/belt.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/bign.h b/include/bee2/crypto/bign.h
index 4f546156..4b56e1c6 100644
--- a/include/bee2/crypto/bign.h
+++ b/include/bee2/crypto/bign.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.27
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/botp.h b/include/bee2/crypto/botp.h
index 47b7f478..ad4443af 100644
--- a/include/bee2/crypto/botp.h
+++ b/include/bee2/crypto/botp.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.11.02
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/bpki.h b/include/bee2/crypto/bpki.h
index 4398f226..517017c4 100644
--- a/include/bee2/crypto/bpki.h
+++ b/include/bee2/crypto/bpki.h
@@ -5,8 +5,8 @@
 \project bee2/apps/bpki
 \created 2021.04.03
 \version 2022.07.05
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/brng.h b/include/bee2/crypto/brng.h
index 08c41c6d..9b2d9196 100644
--- a/include/bee2/crypto/brng.h
+++ b/include/bee2/crypto/brng.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.01.31
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/btok.h b/include/bee2/crypto/btok.h
index 41f62a6a..2c2e798a 100644
--- a/include/bee2/crypto/btok.h
+++ b/include/bee2/crypto/btok.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2022.07.04
 \version 2023.02.02
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/dstu.h b/include/bee2/crypto/dstu.h
index 0844e332..17700a6d 100644
--- a/include/bee2/crypto/dstu.h
+++ b/include/bee2/crypto/dstu.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.27
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/g12s.h b/include/bee2/crypto/g12s.h
index 5d741a55..0f48922d 100644
--- a/include/bee2/crypto/g12s.h
+++ b/include/bee2/crypto/g12s.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.27
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/crypto/pfok.h b/include/bee2/crypto/pfok.h
index 99757bd9..1aa4ab89 100644
--- a/include/bee2/crypto/pfok.h
+++ b/include/bee2/crypto/pfok.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.06.30
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/defs.h b/include/bee2/defs.h
index 1d7bb039..fdf648eb 100644
--- a/include/bee2/defs.h
+++ b/include/bee2/defs.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.01
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/info.h b/include/bee2/info.h
index a985e68c..a0616e07 100644
--- a/include/bee2/info.h
+++ b/include/bee2/info.h
@@ -4,9 +4,9 @@
 \brief Common info
 \project bee2 [cryptographic library]
 \created 2012.04.01
-\version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices at the end of this file.
+\version 2023.02.12
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
@@ -110,7 +110,7 @@ cmake [-DCMAKE_BUILD_TYPE={Release|Debug|Coverage|ASan|ASanDbg|MemSan|MemSanDbg|
 Опция BUILD_FAST (по умолчанию отключена) переключает между безопасными 
 (constant-time) и быстрыми (non-constant-time) редакциями функций.
 
-Компиляция и линковка:
+Сборка:
 
 \verbatim
 make
@@ -130,32 +130,8 @@ make install
 
 \section license Лицензия
 
-Библиотека распространяется на условиях GNU General Public License версии 3
-(GNU GPL v3). 
+Библиотека распространяется на условиях Apache License, Version 2.0. 
 
-\verbatim
-
-Bee2: a cryptographic library
-Copyright (c) 2012-2015, Bee2 authors
-
-This file is part of Bee2. Bee2 is legal property of its developers,
-whose names are not listed here. Please refer to source files for contact 
-information. 
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-\endverbatim
 *******************************************************************************
 */
 
diff --git a/include/bee2/info.h.in b/include/bee2/info.h.in
index f5db020d..607e0917 100644
--- a/include/bee2/info.h.in
+++ b/include/bee2/info.h.in
@@ -4,9 +4,9 @@
 \brief Common info
 \project bee2 [cryptographic library]
 \created 2012.04.01
-\version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices at the end of this file.
+\version 2023.02.12
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
@@ -110,7 +110,7 @@ cmake [-DCMAKE_BUILD_TYPE={Release|Debug|Coverage|ASan|ASanDbg|MemSan|MemSanDbg|
 Опция BUILD_FAST (по умолчанию отключена) переключает между безопасными 
 (constant-time) и быстрыми (non-constant-time) редакциями функций.
 
-Компиляция и линковка:
+Сборка:
 
 \verbatim
 make
@@ -130,32 +130,8 @@ make install
 
 \section license Лицензия
 
-Библиотека распространяется на условиях GNU General Public License версии 3
-(GNU GPL v3). 
+Библиотека распространяется на условиях Apache License, Version 2.0. 
 
-\verbatim
-
-Bee2: a cryptographic library
-Copyright (c) 2012-2015, Bee2 authors
-
-This file is part of Bee2. Bee2 is legal property of its developers,
-whose names are not listed here. Please refer to source files for contact 
-information. 
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-\endverbatim
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/ec.h b/include/bee2/math/ec.h
index f2944cb8..24ca3234 100644
--- a/include/bee2/math/ec.h
+++ b/include/bee2/math/ec.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.19
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/ec2.h b/include/bee2/math/ec2.h
index f1729179..746731ea 100644
--- a/include/bee2/math/ec2.h
+++ b/include/bee2/math/ec2.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.19
 \version 2021.06.30
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/ecp.h b/include/bee2/math/ecp.h
index 5833a871..daf5ba1d 100644
--- a/include/bee2/math/ecp.h
+++ b/include/bee2/math/ecp.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.06.24
 \version 2021.06.30
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/gf2.h b/include/bee2/math/gf2.h
index 435129ac..58b868be 100644
--- a/include/bee2/math/gf2.h
+++ b/include/bee2/math/gf2.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.17
 \version 2015.02.01
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/gfp.h b/include/bee2/math/gfp.h
index 9871fb9e..0cfae8dc 100644
--- a/include/bee2/math/gfp.h
+++ b/include/bee2/math/gfp.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.07.11
 \version 2014.04.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/pp.h b/include/bee2/math/pp.h
index 4a491eab..957c8d96 100644
--- a/include/bee2/math/pp.h
+++ b/include/bee2/math/pp.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.03.01
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/pri.h b/include/bee2/math/pri.h
index 89da3bcc..c476e3eb 100644
--- a/include/bee2/math/pri.h
+++ b/include/bee2/math/pri.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.08.13
 \version 2015.04.28
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/qr.h b/include/bee2/math/qr.h
index 3c9d1886..0bf36dc1 100644
--- a/include/bee2/math/qr.h
+++ b/include/bee2/math/qr.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.08.09
 \version 2015.09.01
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/ww.h b/include/bee2/math/ww.h
index 0d2ac190..183f6870 100644
--- a/include/bee2/math/ww.h
+++ b/include/bee2/math/ww.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.18
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/zm.h b/include/bee2/math/zm.h
index 1de0b46b..d5c563fc 100644
--- a/include/bee2/math/zm.h
+++ b/include/bee2/math/zm.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.09.14
 \version 2023.02.02
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/include/bee2/math/zz.h b/include/bee2/math/zz.h
index 5f80d0ad..d018960a 100644
--- a/include/bee2/math/zz.h
+++ b/include/bee2/math/zz.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2023.02.10
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/apdu.c b/src/core/apdu.c
index 412c02cb..e16643f7 100644
--- a/src/core/apdu.c
+++ b/src/core/apdu.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2022.10.31
 \version 2022.11.03
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/b64.c b/src/core/b64.c
index cc94af57..a3d7039b 100644
--- a/src/core/b64.c
+++ b/src/core/b64.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2016.06.16
 \version 2016.09.01
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/blob.c b/src/core/blob.c
index af0ce0d6..001eebe0 100644
--- a/src/core/blob.c
+++ b/src/core/blob.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.01
 \version 2015.12.09
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/dec.c b/src/core/dec.c
index 5f87d3e5..e39dd5ae 100644
--- a/src/core/dec.c
+++ b/src/core/dec.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.11.09
 \version 2015.11.11
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/der.c b/src/core/der.c
index 2921cff6..e1ac4dfe 100644
--- a/src/core/der.c
+++ b/src/core/der.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.04.21
 \version 2022.11.01
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/err.c b/src/core/err.c
index 2495ee67..e7a48493 100644
--- a/src/core/err.c
+++ b/src/core/err.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.07.09
 \version 2022.10.31
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/hex.c b/src/core/hex.c
index 74a5a153..1cef622a 100644
--- a/src/core/hex.c
+++ b/src/core/hex.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.29
 \version 2016.06.19
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/mem.c b/src/core/mem.c
index 74d85555..ce063627 100644
--- a/src/core/mem.c
+++ b/src/core/mem.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2019.07.09
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/mt.c b/src/core/mt.c
index 0b3688d0..1e803a1e 100644
--- a/src/core/mt.c
+++ b/src/core/mt.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.10.10
 \version 2021.05.18
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/obj.c b/src/core/obj.c
index ac8fc6e9..facd1a16 100644
--- a/src/core/obj.c
+++ b/src/core/obj.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.04.14
 \version 2015.05.22
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/oid.c b/src/core/oid.c
index 05844a43..76607e29 100644
--- a/src/core/oid.c
+++ b/src/core/oid.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.02.04
 \version 2021.04.12
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/prng.c b/src/core/prng.c
index e74a6211..ad623b9e 100644
--- a/src/core/prng.c
+++ b/src/core/prng.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.05.02
 \version 2016.07.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/rng.c b/src/core/rng.c
index 152af56a..62c26d9b 100644
--- a/src/core/rng.c
+++ b/src/core/rng.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.10.13
 \version 2023.02.08
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/str.c b/src/core/str.c
index 8e4a3b18..3a1d41c7 100644
--- a/src/core/str.c
+++ b/src/core/str.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.02.04
 \version 2022.07.14
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/tm.c b/src/core/tm.c
index 324d3ad9..13c4d34c 100644
--- a/src/core/tm.c
+++ b/src/core/tm.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.05.10
 \version 2022.10.28
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/u16.c b/src/core/u16.c
index 528dc06e..5bc80285 100644
--- a/src/core/u16.c
+++ b/src/core/u16.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.28
 \version 2019.07.08
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/u32.c b/src/core/u32.c
index f0da7ff5..487ea063 100644
--- a/src/core/u32.c
+++ b/src/core/u32.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.28
 \version 2022.07.05
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/u64.c b/src/core/u64.c
index e63555b8..cb778844 100644
--- a/src/core/u64.c
+++ b/src/core/u64.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.10.28
 \version 2019.07.08
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/util.c b/src/core/util.c
index 1ee59536..7191c0fa 100644
--- a/src/core/util.c
+++ b/src/core/util.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.05.10
 \version 2021.05.18
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/core/word.c b/src/core/word.c
index c09586c9..8baca5e7 100644
--- a/src/core/word.c
+++ b/src/core/word.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.07.18
 \version 2019.07.08
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bake.c b/src/crypto/bake.c
index 5b4b3c57..ff3a027c 100644
--- a/src/crypto/bake.c
+++ b/src/crypto/bake.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.04.14
 \version 2022.11.10
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_f.c b/src/crypto/bash/bash_f.c
index 4401e168..f318771d 100644
--- a/src/crypto/bash/bash_f.c
+++ b/src/crypto/bash/bash_f.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2019.06.25
 \version 2021.03.25
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_f32.c b/src/crypto/bash/bash_f32.c
index 42278bfd..979796f0 100644
--- a/src/crypto/bash/bash_f32.c
+++ b/src/crypto/bash/bash_f32.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2019.04.03
 \version 2021.03.25
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_f64.c b/src/crypto/bash/bash_f64.c
index b73b6ba2..92f7e36b 100644
--- a/src/crypto/bash/bash_f64.c
+++ b/src/crypto/bash/bash_f64.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.07.15
 \version 2021.03.25
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_favx2.c b/src/crypto/bash/bash_favx2.c
index 3753f7aa..07ba258c 100644
--- a/src/crypto/bash/bash_favx2.c
+++ b/src/crypto/bash/bash_favx2.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2019.04.03
 \version 2021.03.26
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_favx512.c b/src/crypto/bash/bash_favx512.c
index ac1ec82f..87a463b8 100644
--- a/src/crypto/bash/bash_favx512.c
+++ b/src/crypto/bash/bash_favx512.c
@@ -6,8 +6,8 @@
 \project bee2 [cryptographic library]
 \created 2019.04.03
 \version 2021.03.25
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_fneon.c b/src/crypto/bash/bash_fneon.c
index 8692f3a2..12d20e3a 100644
--- a/src/crypto/bash/bash_fneon.c
+++ b/src/crypto/bash/bash_fneon.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2020.10.26
 \version 2021.03.26
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_fsse2.c b/src/crypto/bash/bash_fsse2.c
index e278d4f9..89b8d690 100644
--- a/src/crypto/bash/bash_fsse2.c
+++ b/src/crypto/bash/bash_fsse2.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2019.07.12
 \version 2021.03.26
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_hash.c b/src/crypto/bash/bash_hash.c
index 4a697c32..34e5a233 100644
--- a/src/crypto/bash/bash_hash.c
+++ b/src/crypto/bash/bash_hash.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.07.15
 \version 2021.02.03
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bash/bash_prg.c b/src/crypto/bash/bash_prg.c
index d3aea6e3..3fdfe91c 100644
--- a/src/crypto/bash/bash_prg.c
+++ b/src/crypto/bash/bash_prg.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2018.10.30
 \version 2020.08.03
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bels.c b/src/crypto/bels.c
index 6444cb03..96cd18e3 100644
--- a/src/crypto/bels.c
+++ b/src/crypto/bels.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.05.14
 \version 2021.04.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_bde.c b/src/crypto/belt/belt_bde.c
index 55878412..95cd6417 100644
--- a/src/crypto/belt/belt_bde.c
+++ b/src/crypto/belt/belt_bde.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2018.06.28
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_block.c b/src/crypto/belt/belt_block.c
index f2be281f..ec7b281d 100644
--- a/src/crypto/belt/belt_block.c
+++ b/src/crypto/belt/belt_block.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2019.06.26
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_cbc.c b/src/crypto/belt/belt_cbc.c
index 558e2778..d8179327 100644
--- a/src/crypto/belt/belt_cbc.c
+++ b/src/crypto/belt/belt_cbc.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_cfb.c b/src/crypto/belt/belt_cfb.c
index ee583a13..6e13eab3 100644
--- a/src/crypto/belt/belt_cfb.c
+++ b/src/crypto/belt/belt_cfb.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_che.c b/src/crypto/belt/belt_che.c
index 23595fda..c0ad043f 100644
--- a/src/crypto/belt/belt_che.c
+++ b/src/crypto/belt/belt_che.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2020.03.20
 \version 2020.07.31
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_compr.c b/src/crypto/belt/belt_compr.c
index 31b5a54e..3f908a18 100644
--- a/src/crypto/belt/belt_compr.c
+++ b/src/crypto/belt/belt_compr.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2019.06.26
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_ctr.c b/src/crypto/belt/belt_ctr.c
index db480c46..9a8388d1 100644
--- a/src/crypto/belt/belt_ctr.c
+++ b/src/crypto/belt/belt_ctr.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_dwp.c b/src/crypto/belt/belt_dwp.c
index 603b85a8..24267fc9 100644
--- a/src/crypto/belt/belt_dwp.c
+++ b/src/crypto/belt/belt_dwp.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_ecb.c b/src/crypto/belt/belt_ecb.c
index 7322ae90..9c676626 100644
--- a/src/crypto/belt/belt_ecb.c
+++ b/src/crypto/belt/belt_ecb.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_fmt.c b/src/crypto/belt/belt_fmt.c
index b586b14b..4f3099d9 100644
--- a/src/crypto/belt/belt_fmt.c
+++ b/src/crypto/belt/belt_fmt.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2017.09.28
 \version 2021.01.21
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_hash.c b/src/crypto/belt/belt_hash.c
index 77100ba4..870879a7 100644
--- a/src/crypto/belt/belt_hash.c
+++ b/src/crypto/belt/belt_hash.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2022.07.18
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_hmac.c b/src/crypto/belt/belt_hmac.c
index 3bd6fcad..67c25b28 100644
--- a/src/crypto/belt/belt_hmac.c
+++ b/src/crypto/belt/belt_hmac.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2022.07.18
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_krp.c b/src/crypto/belt/belt_krp.c
index ba259a9b..eb06b2c9 100644
--- a/src/crypto/belt/belt_krp.c
+++ b/src/crypto/belt/belt_krp.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_kwp.c b/src/crypto/belt/belt_kwp.c
index 0af3f39c..030a1b7f 100644
--- a/src/crypto/belt/belt_kwp.c
+++ b/src/crypto/belt/belt_kwp.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2019.06.26
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_lcl.c b/src/crypto/belt/belt_lcl.c
index ee299fb1..964ced5e 100644
--- a/src/crypto/belt/belt_lcl.c
+++ b/src/crypto/belt/belt_lcl.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.20
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_lcl.h b/src/crypto/belt/belt_lcl.h
index e762f3bf..e7057a19 100644
--- a/src/crypto/belt/belt_lcl.h
+++ b/src/crypto/belt/belt_lcl.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.20
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_mac.c b/src/crypto/belt/belt_mac.c
index a4750e03..c60d0762 100644
--- a/src/crypto/belt/belt_mac.c
+++ b/src/crypto/belt/belt_mac.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_pbkdf.c b/src/crypto/belt/belt_pbkdf.c
index 8ac525db..13205b7e 100644
--- a/src/crypto/belt/belt_pbkdf.c
+++ b/src/crypto/belt/belt_pbkdf.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.12.18
 \version 2017.09.28
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_sde.c b/src/crypto/belt/belt_sde.c
index bd8c1bb8..4a7f5d48 100644
--- a/src/crypto/belt/belt_sde.c
+++ b/src/crypto/belt/belt_sde.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2018.09.01
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/belt/belt_wbl.c b/src/crypto/belt/belt_wbl.c
index 3a106bd1..25a94966 100644
--- a/src/crypto/belt/belt_wbl.c
+++ b/src/crypto/belt/belt_wbl.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2017.11.03
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bign.c b/src/crypto/bign.c
index 37bfef25..5aa6093f 100644
--- a/src/crypto/bign.c
+++ b/src/crypto/bign.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.27
 \version 2021.04.20
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bign_lcl.h b/src/crypto/bign_lcl.h
index 8ccc34ab..a93054d8 100644
--- a/src/crypto/bign_lcl.h
+++ b/src/crypto/bign_lcl.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.04.03
 \version 2016.07.05
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/botp.c b/src/crypto/botp.c
index 850e78f7..65a22442 100644
--- a/src/crypto/botp.c
+++ b/src/crypto/botp.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2015.11.02
 \version 2020.03.24
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/bpki.c b/src/crypto/bpki.c
index 10d6f527..64415ba3 100644
--- a/src/crypto/bpki.c
+++ b/src/crypto/bpki.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2021.04.03
 \version 2022.07.07
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/brng.c b/src/crypto/brng.c
index afc49cf3..dd9ead92 100644
--- a/src/crypto/brng.c
+++ b/src/crypto/brng.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.01.31
 \version 2018.07.09
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/btok/btok_bauth.c b/src/crypto/btok/btok_bauth.c
index 1647cfaa..3f7f7d2a 100644
--- a/src/crypto/btok/btok_bauth.c
+++ b/src/crypto/btok/btok_bauth.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2022.02.22
 \version 2022.11.10
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/btok/btok_cvc.c b/src/crypto/btok/btok_cvc.c
index 4956d84c..2b543a4f 100644
--- a/src/crypto/btok/btok_cvc.c
+++ b/src/crypto/btok/btok_cvc.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2022.07.04
 \version 2022.10.31
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/btok/btok_pwd.c b/src/crypto/btok/btok_pwd.c
index f6d8e003..c3e02cee 100644
--- a/src/crypto/btok/btok_pwd.c
+++ b/src/crypto/btok/btok_pwd.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2022.07.19
 \version 2022.12.12
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/btok/btok_sm.c b/src/crypto/btok/btok_sm.c
index 1e5e3c6a..a31a59b6 100644
--- a/src/crypto/btok/btok_sm.c
+++ b/src/crypto/btok/btok_sm.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2022.10.31
 \version 2022.11.04
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/dstu.c b/src/crypto/dstu.c
index 31f85d90..47656240 100644
--- a/src/crypto/dstu.c
+++ b/src/crypto/dstu.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.27
 \version 2016.04.22
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/g12s.c b/src/crypto/g12s.c
index 0924c2b6..4cadb389 100644
--- a/src/crypto/g12s.c
+++ b/src/crypto/g12s.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.07.09
 \version 2016.04.22
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/crypto/pfok.c b/src/crypto/pfok.c
index f51da2d6..5a462833 100644
--- a/src/crypto/pfok.c
+++ b/src/crypto/pfok.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.07.01
 \version 2020.11.05
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/ec.c b/src/math/ec.c
index daa6b440..c8588aed 100644
--- a/src/math/ec.c
+++ b/src/math/ec.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2014.03.04
 \version 2015.11.09
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/ec2.c b/src/math/ec2.c
index 86242515..35f672ec 100644
--- a/src/math/ec2.c
+++ b/src/math/ec2.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.06.26
 \version 2014.07.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/ecp.c b/src/math/ecp.c
index 4bcf4eb0..b18fd500 100644
--- a/src/math/ecp.c
+++ b/src/math/ecp.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.06.26
 \version 2021.06.30
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/gf2.c b/src/math/gf2.c
index 473fbbff..e3a67d70 100644
--- a/src/math/gf2.c
+++ b/src/math/gf2.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.17
 \version 2015.11.03
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/gfp.c b/src/math/gfp.c
index 4eedef28..27fe088d 100644
--- a/src/math/gfp.c
+++ b/src/math/gfp.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.07.11
 \version 2014.04.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/pp.c b/src/math/pp.c
index fef82066..2b38461b 100644
--- a/src/math/pp.c
+++ b/src/math/pp.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.03.01
 \version 2021.04.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/pri.c b/src/math/pri.c
index be2fcd17..5f55053c 100644
--- a/src/math/pri.c
+++ b/src/math/pri.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.08.13
 \version 2016.07.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/qr.c b/src/math/qr.c
index b2b75b56..30316e63 100644
--- a/src/math/qr.c
+++ b/src/math/qr.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.09.14
 \version 2014.04.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/ww.c b/src/math/ww.c
index 3e082d93..819c958e 100644
--- a/src/math/ww.c
+++ b/src/math/ww.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.18
 \version 2016.05.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zm.c b/src/math/zm.c
index 493e8bd9..e829ecef 100644
--- a/src/math/zm.c
+++ b/src/math/zm.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.09.14
 \version 2016.07.04
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_add.c b/src/math/zz/zz_add.c
index 44ab5d71..3713fdba 100644
--- a/src/math/zz/zz_add.c
+++ b/src/math/zz/zz_add.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2021.06.28
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_etc.c b/src/math/zz/zz_etc.c
index 3fa38f25..4faa644f 100644
--- a/src/math/zz/zz_etc.c
+++ b/src/math/zz/zz_etc.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2021.06.30
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_gcd.c b/src/math/zz/zz_gcd.c
index f89b18ea..b743ae6e 100644
--- a/src/math/zz/zz_gcd.c
+++ b/src/math/zz/zz_gcd.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2023.02.10
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_lcl.h b/src/math/zz/zz_lcl.h
index ab83e08b..b384999b 100644
--- a/src/math/zz/zz_lcl.h
+++ b/src/math/zz/zz_lcl.h
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2016.07.01
 \version 2019.06.27
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_mod.c b/src/math/zz/zz_mod.c
index 5c1a8cb7..79a1ffe6 100644
--- a/src/math/zz/zz_mod.c
+++ b/src/math/zz/zz_mod.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2019.06.30
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_mul.c b/src/math/zz/zz_mul.c
index 0e71d857..d510ebce 100644
--- a/src/math/zz/zz_mul.c
+++ b/src/math/zz/zz_mul.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2019.06.26
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_pow.c b/src/math/zz/zz_pow.c
index ea6fa5fa..f632dd62 100644
--- a/src/math/zz/zz_pow.c
+++ b/src/math/zz/zz_pow.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2016.07.01
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/src/math/zz/zz_red.c b/src/math/zz/zz_red.c
index 025d7d4f..e65b94d7 100644
--- a/src/math/zz/zz_red.c
+++ b/src/math/zz/zz_red.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2012.04.22
 \version 2019.06.26
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/apdu_test.c b/test/core/apdu_test.c
index e0397f71..ba95d355 100644
--- a/test/core/apdu_test.c
+++ b/test/core/apdu_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2022.10.31
 \version 2022.11.03
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/b64_test.c b/test/core/b64_test.c
index b8d28279..c06d3874 100644
--- a/test/core/b64_test.c
+++ b/test/core/b64_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2016.06.16
 \version 2016.06.16
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/dec_test.c b/test/core/dec_test.c
index f7e63283..48efd091 100644
--- a/test/core/dec_test.c
+++ b/test/core/dec_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2015.11.09
 \version 2015.11.11
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/der_test.c b/test/core/der_test.c
index 4e95db3e..3c688143 100644
--- a/test/core/der_test.c
+++ b/test/core/der_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2021.04.12
 \version 2022.11.01
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/hex_test.c b/test/core/hex_test.c
index 94928c04..41d18c4e 100644
--- a/test/core/hex_test.c
+++ b/test/core/hex_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2016.06.17
 \version 2016.06.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/mem_test.c b/test/core/mem_test.c
index 0522b447..488b38d9 100644
--- a/test/core/mem_test.c
+++ b/test/core/mem_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.02.01
 \version 2022.07.05
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/mt_test.c b/test/core/mt_test.c
index ae0ffdb0..e2e271aa 100644
--- a/test/core/mt_test.c
+++ b/test/core/mt_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2021.05.15
 \version 2021.05.18
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/obj_test.c b/test/core/obj_test.c
index 0869009d..981b95b1 100644
--- a/test/core/obj_test.c
+++ b/test/core/obj_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2013.04.16
 \version 2015.04.25
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/oid_test.c b/test/core/oid_test.c
index 8cd5cf16..17caee47 100644
--- a/test/core/oid_test.c
+++ b/test/core/oid_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2013.04.01
 \version 2021.07.07
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/prng_test.c b/test/core/prng_test.c
index 915d0ea4..ca0227fe 100644
--- a/test/core/prng_test.c
+++ b/test/core/prng_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.06.30
 \version 2016.07.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/rng_test.c b/test/core/rng_test.c
index 616d78fd..c81134f0 100644
--- a/test/core/rng_test.c
+++ b/test/core/rng_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.10.10
 \version 2022.10.21
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/str_test.c b/test/core/str_test.c
index cbac070d..a89a8667 100644
--- a/test/core/str_test.c
+++ b/test/core/str_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2017.01.12
 \version 2022.07.14
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/tm_test.c b/test/core/tm_test.c
index 84fa41bf..c3737bd0 100644
--- a/test/core/tm_test.c
+++ b/test/core/tm_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.10.13
 \version 2022.07.12
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/u16_test.c b/test/core/u16_test.c
index cb2847d8..238f743e 100644
--- a/test/core/u16_test.c
+++ b/test/core/u16_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2017.01.11
 \version 2019.07.08
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/u32_test.c b/test/core/u32_test.c
index f9298b76..d8ef6b37 100644
--- a/test/core/u32_test.c
+++ b/test/core/u32_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2017.01.11
 \version 2019.07.08
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/u64_test.c b/test/core/u64_test.c
index e4084702..0a854c7e 100644
--- a/test/core/u64_test.c
+++ b/test/core/u64_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2017.01.11
 \version 2019.07.08
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/core/util_test.c b/test/core/util_test.c
index a2c61343..9267a393 100644
--- a/test/core/util_test.c
+++ b/test/core/util_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2017.01.17
 \version 2021.05.18
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/bake_demo.c b/test/crypto/bake_demo.c
index 521ceffa..770002aa 100644
--- a/test/crypto/bake_demo.c
+++ b/test/crypto/bake_demo.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.05.03
 \version 2017.01.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/bake_test.c b/test/crypto/bake_test.c
index c092a550..dd1f4a87 100644
--- a/test/crypto/bake_test.c
+++ b/test/crypto/bake_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.04.23
 \version 2017.01.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/bash_bench.c b/test/crypto/bash_bench.c
index 4ea475d1..41a14142 100644
--- a/test/crypto/bash_bench.c
+++ b/test/crypto/bash_bench.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.07.15
 \version 2020.06.23
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/bash_test.c b/test/crypto/bash_test.c
index 4f28fe03..d354c048 100644
--- a/test/crypto/bash_test.c
+++ b/test/crypto/bash_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2015.09.22
 \version 2020.08.03
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/bels_test.c b/test/crypto/bels_test.c
index 9ed79bb4..1d130056 100644
--- a/test/crypto/bels_test.c
+++ b/test/crypto/bels_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2013.06.27
 \version 2021.04.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/belt_bench.c b/test/crypto/belt_bench.c
index 0f01c3cb..aa3b042f 100644
--- a/test/crypto/belt_bench.c
+++ b/test/crypto/belt_bench.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.11.18
 \version 2020.06.23
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/belt_test.c b/test/crypto/belt_test.c
index 31264e41..27580fba 100644
--- a/test/crypto/belt_test.c
+++ b/test/crypto/belt_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2012.06.20
 \version 2020.04.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/bign_test.c b/test/crypto/bign_test.c
index 170f5172..4dffc253 100644
--- a/test/crypto/bign_test.c
+++ b/test/crypto/bign_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2012.08.27
 \version 2020.11.25
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/botp_test.c b/test/crypto/botp_test.c
index 5e383758..fde153f5 100644
--- a/test/crypto/botp_test.c
+++ b/test/crypto/botp_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2015.11.06
 \version 2019.08.30
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/bpki_test.c b/test/crypto/bpki_test.c
index 0ad7bbb2..32915f1c 100644
--- a/test/crypto/bpki_test.c
+++ b/test/crypto/bpki_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2021.04.13
 \version 2022.07.05
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/brng_test.c b/test/crypto/brng_test.c
index 31043ca9..279c189c 100644
--- a/test/crypto/brng_test.c
+++ b/test/crypto/brng_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2013.04.01
 \version 2018.07.09
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/btok_test.c b/test/crypto/btok_test.c
index 8d15fa3a..07ddd774 100644
--- a/test/crypto/btok_test.c
+++ b/test/crypto/btok_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2022.07.07
 \version 2022.12.12
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/dstu_test.c b/test/crypto/dstu_test.c
index 66d72b95..b98dc4b0 100644
--- a/test/crypto/dstu_test.c
+++ b/test/crypto/dstu_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2012.03.01
 \version 2016.07.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/g12s_test.c b/test/crypto/g12s_test.c
index a821b120..59455b49 100644
--- a/test/crypto/g12s_test.c
+++ b/test/crypto/g12s_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.04.07
 \version 2016.07.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/crypto/pfok_test.c b/test/crypto/pfok_test.c
index ea019b91..dc3c039f 100644
--- a/test/crypto/pfok_test.c
+++ b/test/crypto/pfok_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.07.08
 \version 2022.06.07
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/math/ecp_bench.c b/test/math/ecp_bench.c
index 0a0932de..e07db8b8 100644
--- a/test/math/ecp_bench.c
+++ b/test/math/ecp_bench.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2013.10.17
 \version 2020.02.05
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/math/ecp_test.c b/test/math/ecp_test.c
index d7ccb286..e37c29eb 100644
--- a/test/math/ecp_test.c
+++ b/test/math/ecp_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2017.05.29
 \version 2017.08.23
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/math/pri_test.c b/test/math/pri_test.c
index 33f9958d..4c3482d9 100644
--- a/test/math/pri_test.c
+++ b/test/math/pri_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.07.07
 \version 2016.07.15
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/math/word_test.c b/test/math/word_test.c
index 187b677a..972007fe 100644
--- a/test/math/word_test.c
+++ b/test/math/word_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2015.05.22
 \version 2017.01.11
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/math/zz_test.c b/test/math/zz_test.c
index 9da991f0..3b618d5b 100644
--- a/test/math/zz_test.c
+++ b/test/math/zz_test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.07.15
 \version 2023.02.10
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/test/test.c b/test/test.c
index 0d0e1d47..3361211a 100644
--- a/test/test.c
+++ b/test/test.c
@@ -5,8 +5,8 @@
 \project bee2/test
 \created 2014.04.02
 \version 2022.10.31
-\license This program is released under the GNU General Public License
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/win/bee2.c b/win/bee2.c
index 7093da16..71787fca 100644
--- a/win/bee2.c
+++ b/win/bee2.c
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.02.25
 \version 2017.01.17
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */
 
diff --git a/win/bee2.rc b/win/bee2.rc
index 6e65a933..0c2805cc 100644
--- a/win/bee2.rc
+++ b/win/bee2.rc
@@ -5,8 +5,8 @@
 \project bee2 [cryptographic library]
 \created 2013.02.25
 \version 2020.09.23
-\license This program is released under the GNU General Public License 
-version 3. See Copyright Notices in bee2/info.h.
+\copyright The Bee2 authors
+\license Licensed under the Apache License, Version 2.0 (see LICENSE.txt).
 *******************************************************************************
 */