diff options
Diffstat (limited to 'src/add_tweakeyunrolled')
| l--------- | src/add_tweakeyunrolled/cipher.c | 1 | ||||
| l--------- | src/add_tweakeyunrolled/cipher.h | 1 | ||||
| l--------- | src/add_tweakeyunrolled/constants.h | 1 | ||||
| l--------- | src/add_tweakeyunrolled/lilliput-ae-utils.h | 1 | ||||
| l--------- | src/add_tweakeyunrolled/lilliput-ae.h | 1 | ||||
| l--------- | src/add_tweakeyunrolled/lilliput-i.c | 1 | ||||
| l--------- | src/add_tweakeyunrolled/lilliput-ii.c | 1 | ||||
| -rw-r--r-- | src/add_tweakeyunrolled/tweakey.c | 175 | ||||
| l--------- | src/add_tweakeyunrolled/tweakey.h | 1 |
9 files changed, 0 insertions, 183 deletions
diff --git a/src/add_tweakeyunrolled/cipher.c b/src/add_tweakeyunrolled/cipher.c deleted file mode 120000 index a2ac6a3..0000000 --- a/src/add_tweakeyunrolled/cipher.c +++ /dev/null @@ -1 +0,0 @@ -../ref/cipher.c
\ No newline at end of file diff --git a/src/add_tweakeyunrolled/cipher.h b/src/add_tweakeyunrolled/cipher.h deleted file mode 120000 index eab258b..0000000 --- a/src/add_tweakeyunrolled/cipher.h +++ /dev/null @@ -1 +0,0 @@ -../ref/cipher.h
\ No newline at end of file diff --git a/src/add_tweakeyunrolled/constants.h b/src/add_tweakeyunrolled/constants.h deleted file mode 120000 index 67df0f3..0000000 --- a/src/add_tweakeyunrolled/constants.h +++ /dev/null @@ -1 +0,0 @@ -../ref/constants.h
\ No newline at end of file diff --git a/src/add_tweakeyunrolled/lilliput-ae-utils.h b/src/add_tweakeyunrolled/lilliput-ae-utils.h deleted file mode 120000 index b46625b..0000000 --- a/src/add_tweakeyunrolled/lilliput-ae-utils.h +++ /dev/null @@ -1 +0,0 @@ -../ref/lilliput-ae-utils.h
\ No newline at end of file diff --git a/src/add_tweakeyunrolled/lilliput-ae.h b/src/add_tweakeyunrolled/lilliput-ae.h deleted file mode 120000 index 66c8314..0000000 --- a/src/add_tweakeyunrolled/lilliput-ae.h +++ /dev/null @@ -1 +0,0 @@ -../ref/lilliput-ae.h
\ No newline at end of file diff --git a/src/add_tweakeyunrolled/lilliput-i.c b/src/add_tweakeyunrolled/lilliput-i.c deleted file mode 120000 index 46688d4..0000000 --- a/src/add_tweakeyunrolled/lilliput-i.c +++ /dev/null @@ -1 +0,0 @@ -../ref/lilliput-i.c
\ No newline at end of file diff --git a/src/add_tweakeyunrolled/lilliput-ii.c b/src/add_tweakeyunrolled/lilliput-ii.c deleted file mode 120000 index 09abf10..0000000 --- a/src/add_tweakeyunrolled/lilliput-ii.c +++ /dev/null @@ -1 +0,0 @@ -../ref/lilliput-ii.c
\ No newline at end of file diff --git a/src/add_tweakeyunrolled/tweakey.c b/src/add_tweakeyunrolled/tweakey.c deleted file mode 100644 index b2822b0..0000000 --- a/src/add_tweakeyunrolled/tweakey.c +++ /dev/null @@ -1,175 +0,0 @@ -/* -Implementation of the Lilliput-AE tweakable block cipher. - -Author: Kévin Le Gouguec, 2019. - -For more information, feedback or questions, refer to our website: -https://paclido.fr/lilliput-ae - -To the extent possible under law, the implementer has waived all copyright -and related or neighboring rights to the source code in this file. -http://creativecommons.org/publicdomain/zero/1.0/ - ---- - -This file provides an implementation of Lilliput-TBC's tweakey schedule, -where multiplications by matrices M and M_R to the power n are performed -by functions expressing the exponentiated matrices with shifts and XORs. -*/ - -#include <stdint.h> -#include <string.h> - -#include "constants.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( - uint8_t TK[TWEAKEY_BYTES], - const uint8_t key[KEY_BYTES], - const uint8_t tweak[TWEAK_BYTES] -) -{ - memcpy(TK, tweak, TWEAK_BYTES); - memcpy(TK+TWEAK_BYTES, key, KEY_BYTES); -} - - -void tweakey_state_extract( - const uint8_t TK[TWEAKEY_BYTES], - uint8_t round_constant, - uint8_t round_tweakey[ROUND_TWEAKEY_BYTES] -) -{ - memset(round_tweakey, 0, ROUND_TWEAKEY_BYTES); - - for (size_t j=0; j<LANES_NB; j++) - { - const uint8_t *TKj = TK + j*LANE_BYTES; - - for (size_t k=0; k<LANE_BYTES; k++) - { - round_tweakey[k] ^= TKj[k]; - } - } - - round_tweakey[0] ^= round_constant; -} - - -static void _multiply_M(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) -{ - y[7] = x[6]; - y[6] = x[5]; - y[5] = x[5]<<3 ^ x[4]; - y[4] = x[4]>>3 ^ x[3]; - y[3] = x[2]; - y[2] = x[6]<<2 ^ x[1]; - y[1] = x[0]; - y[0] = x[7]; -} - -static void _multiply_M2(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) -{ - uint8_t x_M_5 = x[5]<<3 ^ x[4]; - uint8_t x_M_4 = x[4]>>3 ^ x[3]; - - y[7] = x[5]; - y[6] = x_M_5; - y[5] = x_M_5<<3 ^ x_M_4; - y[4] = x_M_4>>3 ^ x[2]; - y[3] = x[6]<<2 ^ x[1]; - y[2] = x[5]<<2 ^ x[0]; - y[1] = x[7]; - y[0] = x[6]; -} - -static void _multiply_M3(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) -{ - uint8_t x_M_5 = x[5]<<3 ^ x[4]; - uint8_t x_M_4 = x[4]>>3 ^ x[3]; - uint8_t x_M2_5 = x_M_5<<3 ^ x_M_4; - uint8_t x_M2_4 = x_M_4>>3 ^ x[2]; - - y[7] = x_M_5; - y[6] = x_M2_5; - y[5] = x_M2_5<<3 ^ x_M2_4; - y[4] = x_M2_4>>3 ^ x[6]<<2 ^ x[1]; - y[3] = x[5]<<2 ^ x[0]; - y[2] = x_M_5<<2 ^ x[7]; - y[1] = x[6]; - y[0] = x[5]; -} - -static void _multiply_MR(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) -{ - y[0] = x[1]; - y[1] = x[2]; - y[2] = x[3] ^ x[4]>>3; - y[3] = x[4]; - y[4] = x[5] ^ x[6]<<3; - y[5] = x[3]<<2 ^ x[6]; - y[6] = x[7]; - y[7] = x[0]; -} - -static void _multiply_MR2(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) -{ - uint8_t x_MR_4 = x[5] ^ x[6]<<3; - - y[0] = x[2]; - y[1] = x[3] ^ x[4]>>3; - y[2] = x[4] ^ x_MR_4>>3; - y[3] = x_MR_4; - y[4] = x[3]<<2 ^ x[6] ^ x[7]<<3; - y[5] = x[4]<<2 ^ x[7]; - y[6] = x[0]; - y[7] = x[1]; -} - -static void _multiply_MR3(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]) -{ - uint8_t x_MR_4 = x[5] ^ x[6]<<3; - uint8_t x_MR2_4 = x[3]<<2 ^ x[6] ^ x[7]<<3; - - y[0] = x[3] ^ x[4]>>3; - y[1] = x[4] ^ x_MR_4>>3; - y[2] = x_MR_4 ^ x_MR2_4>>3; - y[3] = x_MR2_4; - y[4] = x[0]<<3 ^ x[4]<<2 ^ x[7]; - y[5] = x_MR_4<<2 ^ x[0]; - y[6] = x[1]; - y[7] = x[2]; -} - -typedef void (*matrix_multiplication)(const uint8_t x[LANE_BYTES], uint8_t y[LANE_BYTES]); - -static const matrix_multiplication ALPHAS[6] = { - _multiply_M, - _multiply_M2, - _multiply_M3, - _multiply_MR, - _multiply_MR2, - _multiply_MR3 -}; - - -void tweakey_state_update(uint8_t TK[TWEAKEY_BYTES]) -{ - /* Skip lane 0, as it is multiplied by the identity matrix. */ - - for (size_t j=1; j<LANES_NB; j++) - { - uint8_t *TKj = TK + j*LANE_BYTES; - - uint8_t TKj_old[LANE_BYTES]; - memcpy(TKj_old, TKj, LANE_BYTES); - - ALPHAS[j-1](TKj_old, TKj); - } -} diff --git a/src/add_tweakeyunrolled/tweakey.h b/src/add_tweakeyunrolled/tweakey.h deleted file mode 120000 index 7f2415f..0000000 --- a/src/add_tweakeyunrolled/tweakey.h +++ /dev/null @@ -1 +0,0 @@ -../ref/tweakey.h
\ No newline at end of file |
