From fdc5849a69ad26aa7f7c53d12c7cdb436bc75e42 Mon Sep 17 00:00:00 2001
From: Dawnforger <dawnforger@users.noreply.github.com>
Date: Fri, 8 May 2026 20:28:46 -0500
Subject: [PATCH] fix(common): ARC4 OpenSSL 1.1 vs 3 API (EVP_CIPHER_fetch)

---
 src/common/Cryptography/ARC4.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/common/Cryptography/ARC4.cpp b/src/common/Cryptography/ARC4.cpp
index d830d0d..9d2b26a 100644
--- a/src/common/Cryptography/ARC4.cpp
+++ b/src/common/Cryptography/ARC4.cpp
@@ -17,10 +17,16 @@
 
 #include "ARC4.h"
 #include "Errors.h"
+#include <openssl/opensslv.h>
 
 Acore::Crypto::ARC4::ARC4() : _ctx(EVP_CIPHER_CTX_new())
 {
+#if OPENSSL_VERSION_NUMBER >= 0x30000000L
     _cipher = EVP_CIPHER_fetch(nullptr, "RC4", nullptr);
+#else
+    _cipher = const_cast<EVP_CIPHER*>(EVP_rc4());
+#endif
+    ASSERT(_cipher);
 
     EVP_CIPHER_CTX_init(_ctx);
     int result = EVP_EncryptInit_ex(_ctx, _cipher, nullptr, nullptr, nullptr);
@@ -30,7 +36,9 @@ Acore::Crypto::ARC4::ARC4() : _ctx(EVP_CIPHER_CTX_new())
 Acore::Crypto::ARC4::~ARC4()
 {
     EVP_CIPHER_CTX_free(_ctx);
+#if OPENSSL_VERSION_NUMBER >= 0x30000000L
     EVP_CIPHER_free(_cipher);
+#endif
 }
 
 void Acore::Crypto::ARC4::Init(uint8 const* seed, std::size_t len)