From 13f84beccc02f586e01c52c08d94edea572610c6 Mon Sep 17 00:00:00 2001
From: kevin Heifner <kevin@wire.network>
Date: Mon, 16 Mar 2026 16:52:15 -0500
Subject: [PATCH] Embed ED25519 public key in signature blob (96 bytes)

Update ed_signature from 64 to 96 bytes to match the new self-contained
ED25519 signature format: [0..31] 32-byte public key + [32..95] 64-byte
signature. This eliminates the need for separate ed_pubkey_extension in
transaction extensions.

Companion to wire-sysio ed-sig-key changes.
---
 libraries/sysiolib/core/sysio/crypto.hpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/libraries/sysiolib/core/sysio/crypto.hpp b/libraries/sysiolib/core/sysio/crypto.hpp
index d605a37c7..42e73bb4d 100644
--- a/libraries/sysiolib/core/sysio/crypto.hpp
+++ b/libraries/sysiolib/core/sysio/crypto.hpp
@@ -248,12 +248,13 @@ namespace sysio {
 
    /**
     * SYSIO ED signature data
-    * 
-    * Fixed size representation of a ED25519 signature
-    * 
+    *
+    * Fixed size representation of a ED25519 signature (96 bytes = 32 pubkey + 64 sig)
+    * The public key is embedded at [0..31], the signature at [32..95].
+    *
     * @ingroup signature
     */
-   using ed_signature = std::array<uint8_t, 64>;
+   using ed_signature = std::array<uint8_t, 96>;
 
    /**
     * SYSIO BLS signature data