From d6928200bc9dfdb6c8fe28a80bc3ff76895a66ee Mon Sep 17 00:00:00 2001
From: ragnarok-clanker <ragnarok-clanker>
Date: Fri, 30 Oct 2026 09:26:43 +0000
Subject: [PATCH] Decompile 2 functions in Source/Utility/Cipher/AES.cpp,
 Source/Utility/Cipher/AES.h

Batch #5208 by Yommy: 0 byte-identical, 2 confirmed by peer review.

- fn_18391 CAES::~CAES: logic confirmed by peer review
- fn_18398 CAES::Xor: logic confirmed by peer review

Peer-reviewed-by: eAthena, youko
Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
---
 Source/Utility/Cipher/AES.cpp | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Source/Utility/Cipher/AES.cpp b/Source/Utility/Cipher/AES.cpp
index 74fcfbbd..efa420e9 100644
--- a/Source/Utility/Cipher/AES.cpp
+++ b/Source/Utility/Cipher/AES.cpp
@@ -464,6 +464,16 @@ CAES::CAES(int keyLength, int blockSize) : m_bKeyInit(false) {
 }
 
 // OFFSET: 0x00B0A550
+// FUNCTION: fn_18391
+CAES::~CAES() {
+  SecureZeroMemory(this->m_Ke, sizeof(this->m_Ke));
+  SecureZeroMemory(this->m_Kd, sizeof(this->m_Kd));
+  SecureZeroMemory(this->m_chain0, sizeof(this->m_chain0));
+  SecureZeroMemory(this->m_chain, sizeof(this->m_chain));
+  SecureZeroMemory(this->tk, sizeof(this->tk));
+  SecureZeroMemory(this->a, sizeof(this->a));
+  SecureZeroMemory(this->t, sizeof(this->t));
+}
 
 // OFFSET: 0x00B0A770
 
@@ -476,3 +486,13 @@ CAES::CAES(int keyLength, int blockSize) : m_bKeyInit(false) {
 // OFFSET: 0x00B0B610
 
 // OFFSET: 0x00B0BD70
+// FUNCTION: fn_18398
+void CAES::Xor(unsigned char* destination, const unsigned char* source) {
+  if (!this->m_bKeyInit) {
+    throw std::exception(sm_szErrorMsg1);
+  }
+
+  for (int i = 0; i < this->m_blockSize; ++i) {
+    destination[i] ^= source[i];
+  }
+}