From d14739644394986cb584acb45ed9b214dff1c501 Mon Sep 17 00:00:00 2001
From: Kévin Le Gouguec <kevin.legouguec@airbus.com>
Date: Tue, 27 Nov 2018 08:58:46 +0100
Subject: Mise en commun du code TBC et ΘCB3
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Il ne devrait pas varier selon les paramètres AFAICT.
---
 crypto_aead/lilliputaei128v1/ref/tweakey.c | 83 ------------------------------
 1 file changed, 83 deletions(-)
 delete mode 100644 crypto_aead/lilliputaei128v1/ref/tweakey.c

(limited to 'crypto_aead/lilliputaei128v1/ref/tweakey.c')

diff --git a/crypto_aead/lilliputaei128v1/ref/tweakey.c b/crypto_aead/lilliputaei128v1/ref/tweakey.c
deleted file mode 100644
index da97019..0000000
--- a/crypto_aead/lilliputaei128v1/ref/tweakey.c
+++ /dev/null
@@ -1,83 +0,0 @@
-#include <stdint.h>
-#include <string.h>
-
-#include "constants.h"
-#include "parameters.h"
-#include "tweakey.h"
-
-
-#define LANE_BITS  64
-#define LANE_BYTES (LANE_BITS/8)
-#define LANES_NB (TWEAKEY_BYTES/LANE_BYTES)
-
-
-void tweakey_state_init(
-    tweakey_state *TK,
-    const uint8_t key[KEY_BYTES],
-    const uint8_t tweak[TWEAK_BYTES]
-)
-{
-    memcpy(TK->TK,             tweak, TWEAK_BYTES);
-    memcpy(TK->TK+TWEAK_BYTES, key,   KEY_BYTES);
-}
-
-
-void tweakey_state_extract(
-    const tweakey_state *TK,
-    uint8_t round_tweakey[ROUND_TWEAKEY_BYTES], /* output */
-    uint8_t i                                   /* round constant */
-)
-{
-    memset(round_tweakey, 0, ROUND_TWEAKEY_BYTES);
-
-    for (const uint8_t *lane=TK->TK; lane<TK->TK+TWEAKEY_BYTES; lane+=LANE_BYTES)
-    {
-        for (size_t j=0; j<LANE_BYTES; j++)
-        {
-            round_tweakey[j] ^= lane[j];
-        }
-    }
-
-    round_tweakey[0] ^= i;
-}
-
-
-static void _permute_state(tweakey_state *TK)
-{
-    uint8_t TK_old[TWEAKEY_BYTES];
-    memcpy(TK_old, TK->TK, sizeof(TK_old));
-
-    /* TODO: homogenize indices; here j=lane; k=byte */
-
-    for (size_t j=0; j<TWEAKEY_BYTES; j+=LANE_BYTES)
-    {
-        for (size_t k=0; k<LANE_BYTES; k++)
-        {
-            TK->TK[j+h[k]] = TK_old[j+k];
-        }
-    }
-}
-
-static void _multiply_state(tweakey_state *TK)
-{
-    /* Lane 0 is multiplied by Id; lane 1 by P_0, lane 2 by P_1... */
-
-    for (size_t lane=1; lane<LANES_NB; lane++)
-    {
-        const uint8_t* P_lane = P[lane-1];
-
-        /* TODO: homogenize indices; here b=byte */
-
-        for (size_t b=0; b<LANE_BYTES; b++)
-        {
-            size_t offset = lane*LANE_BYTES + b;
-            TK->TK[offset] = P_lane[TK->TK[offset]];
-        }
-    }
-}
-
-void tweakey_state_update(tweakey_state *TK)
-{
-    _permute_state(TK);
-    _multiply_state(TK);
-}
-- 
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