From d54e10fbe3be93631331308de94a9d256b480302 Mon Sep 17 00:00:00 2001
From: Dorian Zedler <dorian@itsblue.de>
Date: Wed, 20 Jul 2022 22:26:43 +0200
Subject: [PATCH] Feat: add detailed benchmar to reference impl

---
 .../lib/md2_impls/md2_reference/md2_reference.h            | 2 ++
 .../src/md2_impls/md2_reference/md2_reference.c            | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/Implementierung/lib/md2_impls/md2_reference/md2_reference.h b/Implementierung/lib/md2_impls/md2_reference/md2_reference.h
index 962004a..06170dc 100644
--- a/Implementierung/lib/md2_impls/md2_reference/md2_reference.h
+++ b/Implementierung/lib/md2_impls/md2_reference/md2_reference.h
@@ -49,6 +49,8 @@ void MD2Final PROTO_LIST((unsigned char[16], MD2_CTX *));
 #include <string.h>
 #include <sys/types.h>
 
+#include "../md2_common.h"
+
 void md2_hash_ref(size_t len, const uint8_t buf[len], uint8_t out[16]);
 
 #endif  // MD2_REF_H
\ No newline at end of file
diff --git a/Implementierung/src/md2_impls/md2_reference/md2_reference.c b/Implementierung/src/md2_impls/md2_reference/md2_reference.c
index b679797..5dab73a 100644
--- a/Implementierung/src/md2_impls/md2_reference/md2_reference.c
+++ b/Implementierung/src/md2_impls/md2_reference/md2_reference.c
@@ -83,6 +83,7 @@ void md2_hash_ref(size_t len, const uint8_t buf[len], uint8_t out[16]) {
   MD2Init(&context);
   MD2Update(&context, buf, len);
   MD2Final(out, &context);
+  END_MARK
 }
 
 /* MD2 initialization. Begins an MD2 operation, writing a new context.
@@ -169,23 +170,29 @@ unsigned char block[16];
    */
   MD2_memcpy((POINTER)x, (POINTER)state, 16);
   MD2_memcpy((POINTER)x + 16, (POINTER)block, 16);
+  FIRST_LOOP_START_MARK
   for (i = 0; i < 16; i++) x[i + 32] = state[i] ^ block[i];
+  FIRST_LOOP_END_MARK
 
   /* Encrypt block (18 rounds).
    */
   t = 0;
+  SECOND_LOOP_START_MARK
   for (i = 0; i < 18; i++) {
     for (j = 0; j < 48; j++) t = x[j] ^= PI_SUBST[t];
     t = (t + i) & 0xff;
   }
+  SECOND_LOOP_END_MARK
 
   /* Save new state */
   MD2_memcpy((POINTER)state, (POINTER)x, 16);
 
   /* Update checksum.
    */
+  CHECKSUM_START_MARK
   t = checksum[15];
   for (i = 0; i < 16; i++) t = checksum[i] ^= PI_SUBST[block[i] ^ t];
+  CHECKSUM_END_MARK
 
   /* Zeroize sensitive information.
    */