From fe1e17321f5304b32d4f9423ff22749294e5db9a Mon Sep 17 00:00:00 2001
From: Kévin Le Gouguec <kevin.legouguec@airbus.com>
Date: Wed, 21 Nov 2018 17:00:53 +0100
Subject: Ajout de traces pour cipher.c (fin)
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Plus qu'à implémenter maintenant.
---
 crypto_aead/lilliputaei128v1/ref/cipher.c | 35 +++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 9 deletions(-)

diff --git a/crypto_aead/lilliputaei128v1/ref/cipher.c b/crypto_aead/lilliputaei128v1/ref/cipher.c
index 31f7f02..aa51bf8 100644
--- a/crypto_aead/lilliputaei128v1/ref/cipher.c
+++ b/crypto_aead/lilliputaei128v1/ref/cipher.c
@@ -1,5 +1,5 @@
+#include <inttypes.h>           /* debug */
 #include <stdbool.h>
-#include <stdint.h>
 #include <stdio.h>              /* debug */
 #include <string.h>
 
@@ -10,6 +10,16 @@
 #include "debug.h"
 
 
+static void _debug_announce_round(FILE* debug, uint8_t i)
+{
+    if (!debug)
+        return;
+    fprintf(debug, "\n");
+    fprintf(debug, "One round EGFN round :  %"PRIu8"\n", i);
+    fprintf(debug, "     State :\n");
+}
+
+
 enum permutation
 {
     PERMUTATION_ENCRYPTION = 0,
@@ -64,22 +74,29 @@ static void _compute_round_tweakeys(
 }
 
 
-static void _nonlinear_layer(__attribute__((unused)) cipher_state *X, __attribute__((unused)) const uint8_t RTK[ROUND_TWEAKEY_BYTES])
+static void _nonlinear_layer(cipher_state *X, const uint8_t RTK[ROUND_TWEAKEY_BYTES])
 {
-
+    debug_dump_buffer(X->debug, "     Non Linear Layer :", sizeof(X->X), X->X, 10);
+    debug_dump_buffer(X->debug, "          Subtweakey :", ROUND_TWEAKEY_BYTES, RTK, 66);
+    debug_dump_buffer(X->debug, "          Variables xored :", ROUND_TWEAKEY_BYTES, RTK, 66);
+    debug_dump_buffer(X->debug, "          Variables sboxed :", ROUND_TWEAKEY_BYTES, RTK, 66);
+    debug_dump_buffer(X->debug, "          State non linearized :", sizeof(X->X), X->X, 10);
 }
 
-static void _linear_layer(__attribute__((unused)) cipher_state *X)
+static void _linear_layer(cipher_state *X)
 {
-
+    debug_dump_buffer(X->debug, "     Linear Layer :", sizeof(X->X), X->X, 10);
+    debug_dump_buffer(X->debug, "          State linearized :", sizeof(X->X), X->X, 10);
 }
 
-static void _permutation_layer(__attribute__((unused)) cipher_state *X, permutation p)
+static void _permutation_layer(cipher_state *X, permutation p)
 {
     if (p == PERMUTATION_NONE)
     {
         return;
     }
+    debug_dump_buffer(X->debug, "     Permutation Layer :", sizeof(X->X), X->X, 10);
+    debug_dump_buffer(X->debug, "          State permuted :", sizeof(X->X), X->X, 10);
 }
 
 static void _one_round_egfn(cipher_state *X, const uint8_t RTK[ROUND_TWEAKEY_BYTES], permutation p)
@@ -101,7 +118,6 @@ void lilliput_tbc_encrypt(
     debug_dump_lanes(debug, "Tweak :", TWEAK_BYTES, tweak, 0);
     debug_dump_lanes(debug, "Key :", KEY_BYTES, key, 0);
     debug_dump_buffer(debug, "Message :", BLOCK_BYTES, message, 0);
-    fprintf(debug, "\n");
 
     cipher_state X;
     _state_init(&X, message, debug);
@@ -111,15 +127,16 @@ void lilliput_tbc_encrypt(
 
     for (uint8_t i=0; i<ROUNDS-1; i++)
     {
+        _debug_announce_round(debug, i);
         _one_round_egfn(&X, RTK[i], PERMUTATION_ENCRYPTION);
     }
 
+    _debug_announce_round(debug, ROUNDS-1);
     _one_round_egfn(&X, RTK[ROUNDS-1], PERMUTATION_NONE);
 
     memcpy(ciphertext, X.X, BLOCK_BYTES);
 
-    debug_dump_buffer(debug, "Ciphertext :", BLOCK_BYTES, ciphertext, 0);
-
+    debug_dump_buffer(debug, "\nCiphertext :", BLOCK_BYTES, ciphertext, 0);
 }
 
 void lilliput_tbc_decrypt(
-- 
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