From 755623b0dcc0137c070c63a74e61f48df751d369 Mon Sep 17 00:00:00 2001
From: Manuel Thalmann <m@nuth.ch>
Date: Tue, 7 Nov 2023 19:25:41 +0100
Subject: [PATCH] Implement `subBytes`
---
aes/aes.cpp | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/aes/aes.cpp b/aes/aes.cpp
index 5a95573..c5cde46 100644
--- a/aes/aes.cpp
+++ b/aes/aes.cpp
@@ -78,7 +78,9 @@ uint32_t subWord(uint32_t w) {
}
void subBytes(t_state s) {
- s[0] = 0; /* ??? */
+ for (uint8_t i = 0; i < 4; i++) {
+ s[i] = subWord(s[i]);
+ }
}