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Update libssh2-vs-libssh.t with to reflect last changes. #4

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Update libssh2-vs-libssh.t with to reflect last changes. #4

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244 changes: 124 additions & 120 deletions libssh2-vs-libssh.t
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Expand Up @@ -9,141 +9,145 @@ HEAD(libssh2 vs libssh)
TITLE(libssh2 vs libssh - A comparison)
BOXTOP

<p> libssh2 and libssh both implement SSH and provide a library API for
apps. Both support SSH, SFTP, auth, channels etc. Both are 25K-30K
lines of code.
<p>libssh2 and libssh both provide an API to develop SSH based applications.

<p> Here's an attempt to put some light on the differences between them.
<p>Here's an attempt to put some light on the differences between them.

SUBTITLE(libssh2 1.5.x)
SUBTITLE(libssh2 1.7.0)
<p>
<ul>
<li> <a href="/license.html">BSD licensed</a>
<li> Can set the API to either <a href="/libssh2_session_set_blocking.html">blocking or non-blocking</a>
<li> client-side only
<li> stable API
<li> strict name space - everything is in libssh2_*
<li> C89 compatible
<li> SSH v2 only (not v1)
<li> all 100+ functions are documented in their own <a href="/docs.html">man pages</a>
<li> autotools-based building
<li> supports Windows native, OpenSSL or gcrypt as backends
<li>License: <a href="https://en.wikipedia.org/wiki/BSD_licenses#3-clause_license_.28.22Revised_BSD_License.22.2C_.22New_BSD_License.22.2C_or_.22Modified_BSD_License.22.29">3-clause BSD License</a>
<li>Developped in: C (30218 SLOC), sh (1102 SLOC), Perl (65 SLOC), Lisp (33 SLOC), AWK (23 SLOC)
<li>NUmber of functions: 170
<li>Key Exchange Methods: diffie-hellman-group1-sha1, diffie-hellman-group14-sha1, diffie-hellman-group-exchange-sha1, diffie-hellman-group-exchange-sha256
<li>Hostkey Types: ssh-rsa, ssh-dss
<li>Ciphers: aes256-ctr, aes192-ctr, aes128-ctr, aes256-cbc ([email protected]), aes192-cbc, aes128-cbc, 3des-cbc, blowfish-cbc, cast128-cbc, arcfour, arcfour128, none
<li>Compression Schemes: zlib, [email protected], none
<li>MAC hashes: hmac-sha2-256, hmac-sha2-512, hmac-sha1, hmac-sha1-96, hmac-md5, hmac-md5-96, hmac-ripemd160 ([email protected]), none
<li>Authentication: none, password, public-key, hostbased, keyboard-interactive
<li>Channels: shell, exec (incl. SCP wrapper), direct-tcpip, subsystem
<li>Global Requests: tcpip-forward
<li>Channel Requests: x11, pty, exit-signal, [email protected]
<li>Subsystems: sftp(version 3), publickey(version 2)
<li>SFTP: [email protected], [email protected]
<li>Thread-safe: just don't share handles simultaneously
<li>Non-blocking: it can be used both blocking and non-blocking
<li>Your sockets: the app hands over the socket, calls select() etc.
<li>OpenSSL, Libgcrypt or WinCNG (native since Windows Vista): builds with either
</ul>

SUBTITLE(<a href="http://www.libssh.org/">libssh</a> 0.6.x)
SUBTITLE(<a href="http://www.libssh.org/">libssh</a> 0.7.x)
<p>
<ul>
<li> LGPL licensed
<li> Blocking and non-blocking API, callback based server implentation.
<li> client-side and server-side support
<li> Event model based on poll(2), or a poll(2)-emulation.
<li> API that still changes, but rarely
<li> C99 support required
<li> optional SSH version 1 support
<li> doxygen-generated docs
<li> CMake-based building
<li> Key exchange supports [email protected] and ecdh-sha2-nistp256
<li> Hostkey Types support ecdsa-sha2-nistp256
<li> Channels support also [email protected] and [email protected]
<li> Support for GSSAPI (Keberos authentication)
<li> Support for <a href="https://www.libssh.org/2013/11/03/openssh-introduces-curve25519-sha256libssh-org-key-exchange/">[email protected]</a>
<li> supports OpenSSL or gcrypt as backends
<li>License: <a href="https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html">GNU Lesser General Public License</a>
<li>Developped in: C (46021 SLOC), C++ (1181 SLOC), sh (186 SLOC), Python (9 SLOC)
<li>NUmber of functions: 213
<li>Key Exchange Methods: [email protected], ecdh-sha2-nistp256, diffie-hellman-group1-sha1, diffie-hellman-group14-sha1
<li>Hostkey Types: ssh-ed25519, ecdsa-sha2-nistp256, ecdsa-sha2-nistp384, ecdsa-sha2-nistp521, ssh-rsa, ssh-dss, ssh-rsa, ssh-dss
<li>Ciphers: aes256-ctr, aes192-ctr, aes128-ctr, aes256-cbc ([email protected]), aes192-cbc, aes128-cbc, 3des-cbc, blowfish-cbc, none
<li>Compression Schemes: zlib, [email protected], none
<li>MAC hashes: hmac-sha1, none
<li>Authentication: none, password, public-key, hostbased, keyboard-interactive, gssapi-with-mic
<li>Channels: shell, exec (incl. SCP wrapper), direct-tcpip, subsystem, [email protected]
<li>Global Requests: tcpip-forward, forwarded-tcpip
<li>Channel Requests: x11, pty, exit-status, signal, exit-signal, [email protected], [email protected]
<li>Subsystems: sftp(version 3), OpenSSH Extensions
<li>SFTP: [email protected], [email protected]
<li>Thread-safe: Just don't share sessions
<li>Non-blocking: it can be used both blocking and non-blocking
<li>Your sockets: the app hands over the socket, or uses libssh sockets
<li>OpenSSL or gcrypt: builds with either
<li>Client and server support
<li>SSHv2 and SSHv1 protocol support
<li>Supports Linux, UNIX, BSD, Solaris, OS/2 and Windows
<li>Automated test cases with nightly tests
<li>Event model based on poll(2), or a poll(2)-emulation.
</ul>

SUBTITLE(Feature by feature)
<p>
The same data, in a table:

<table>
<tr><th>item</th><th>libssh2</th><th>libssh</th></tr>

<tr>
<td>Licence</td>
<td>BSD</td>
<td>LGPL</td>
</tr>

<tr>
<td>Server-side support</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>GSSAPI authentication</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>Eliptic Curve Key Exchange</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>Eliptic Curve Hostkeys</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>Automated test cases with nightly tests</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>Stable API</td>
<td>yes</td>
<td>mostly</td>
</tr>

<tr>
<td>C compatibility</td>
<td>C89</td>
<td>C99</td>
</tr>

<tr>
<td>strict namespace</td>
<td>yes</td>
<td>no</td>
</tr>

<tr>
<td>man pages for all functions</td>
<td>yes</td>
<td>no</td>
</tr>

<tr>
<td>Doxygen documentation for all functions</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>Tutorial</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>SSHv1 support</td>
<td>no</td>
<td>yes</td>
</tr>

<tr>
<td>Build concept</td>
<td>Autotools</td>
<td>CMake</td>
</tr>

<thead>
<tr>
<th>item</th>
<th>libssh2</th>
<th>libssh</th>
</tr>
</thead>
<tbody>
<tr>
<td>Licence</td>
<td>BSD</td>
<td>LGPL</td>
</tr>
<tr>
<td>Server-side support</td>
<td>no</td>
<td>yes</td>
</tr>
<tr>
<td>GSSAPI authentication</td>
<td>no</td>
<td>yes</td>
</tr>
<tr>
<td>Eliptic Curve Key Exchange</td>
<td>no</td>
<td>yes</td>
</tr>
<tr>
<td>Eliptic Curve Hostkeys</td>
<td>no</td>
<td>yes</td>
</tr>
<tr>
<td>Automated test cases with nightly tests</td>
<td>no (tests available)</td>
<td>yes</td>
</tr>
<tr>
<td>Stable API</td>
<td>yes</td>
<td>mostly</td>
</tr>
<tr>
<td>C compatibility</td>
<td>C89</td>
<td>C99</td>
</tr>
<tr>
<td>strict namespace</td>
<td>yes</td>
<td>yes</td>
</tr>
<tr>
<td>man pages for all functions</td>
<td>yes</td>
<td>no</td>
</tr>
<tr>
<td>Doxygen documentation for all functions</td>
<td>no</td>
<td>yes</td>
</tr>
<tr>
<td>Tutorial</td>
<td>no</td>
<td>yes</td>
</tr>
<tr>
<td>SSHv1 support</td>
<td>no</td>
<td>yes</td>
</tr>
<tr>
<td>Build concept</td>
<td>Autotools and CMake</td>
<td>CMake</td>
</tr>
</tbody>
</table>


BOXBOT

#include "footer.t"