From 44e9677ecb464334fbe25ed4381c6e25010d8152 Mon Sep 17 00:00:00 2001
From: Audric Ackermann <audric@getsession.org>
Date: Mon, 17 Nov 2025 10:54:03 +1100
Subject: [PATCH] fix: group encrypt/decrypt

---
 src/encrypt_decrypt/encrypt_decrypt.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/encrypt_decrypt/encrypt_decrypt.cpp b/src/encrypt_decrypt/encrypt_decrypt.cpp
index ee5860f..8139925 100644
--- a/src/encrypt_decrypt/encrypt_decrypt.cpp
+++ b/src/encrypt_decrypt/encrypt_decrypt.cpp
@@ -815,6 +815,10 @@ Napi::Value MultiEncryptWrapper::decryptForGroup(const Napi::CallbackInfo& info)
         std::span<std::span<const unsigned char>> groupEncKeys(span_group_enc_keys);
 
         keys.decrypt_keys = groupEncKeys;
+        // remove prefix
+        std::vector<uint8_t> groupPkNoPrefix(groupPk.begin() + 1, groupPk.end());
+
+        keys.group_ed25519_pubkey = groupPkNoPrefix;
 
         for (uint32_t i = 0; i < first.Length(); i++) {
             auto itemValue = first.Get(i);