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+serpent bitslice; modifyed cast5 testings

This commit is contained in:
bg 2008-04-07 22:25:31 +00:00
parent cc0d247149
commit 158bb85c89
8 changed files with 621 additions and 103 deletions
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3
cast5.mk
View File

@ -5,7 +5,8 @@ ALGO_NAME := CAST5
BLOCK_CIPHERS += $(ALGO_NAME)
$(ALGO_NAME)_OBJ := cast5.o
$(ALGO_NAME)_TEST_BIN := main-cast5-test.o debug.o uart.o serial-tools.o cast5.o
$(ALGO_NAME)_TEST_BIN := main-cast5-test.o debug.o uart.o serial-tools.o \
cast5.o nessie_bc_test.o
$(ALGO_NAME)_NESSIE_TEST := "nessie"
$(ALGO_NAME)_PEROFRMANCE_TEST := "performance"

36
main-cast5-test.c
View File

@ -9,14 +9,45 @@
#include "debug.h"
#include "cast5.h"
#include "nessie_bc_test.h"
#include <stdint.h>
#include <string.h>
char* cipher_name = "cast-128 (cast5)";
/*****************************************************************************
* additional validation-functions *
*****************************************************************************/
/*
void cast5_init(cast5_ctx_t* s, uint8_t* key, uint8_t keylength);
void cast5_enc(cast5_ctx_t *s, void* block);
void cast5_dec(cast5_ctx_t *s, void* block);
*/
void cast5_init_dummy(uint8_t* key, uint8_t keylength_b, cast5_ctx_t* ctx){
cast5_init(ctx, key, keylength_b);
}
void cast5_enc_dummy(void* buffer, cast5_ctx_t* ctx){
cast5_enc(ctx, buffer);
}
void cast5_dec_dummy(void* buffer, cast5_ctx_t* ctx){
cast5_dec(ctx, buffer);
}
void test_nessie_cast5(void){
nessie_bc_ctx.blocksize_B = 8;
nessie_bc_ctx.keysize_b = 128;
nessie_bc_ctx.name = cipher_name;
nessie_bc_ctx.ctx_size_B = sizeof(cast5_ctx_t);
nessie_bc_ctx.cipher_enc = (nessie_bc_enc_fpt)cast5_enc_dummy;
nessie_bc_ctx.cipher_dec = (nessie_bc_dec_fpt)cast5_dec_dummy;
nessie_bc_ctx.cipher_genctx = (nessie_bc_gen_fpt)cast5_init_dummy;
nessie_bc_run();
}
/*****************************************************************************
* self tests *
@ -135,8 +166,9 @@ int main (void){
restart:
while(1){
if (!getnextwordn(str,20)) {DEBUG_S("DBG: W1\r\n"); goto error;}
if (strcmp(str, "test")) {DEBUG_S("DBG: 1b\r\n"); goto error;}
testrun_cast5();
if (strcmp(str, "nessie")) {DEBUG_S("DBG: 1b\r\n"); goto error;}
// testrun_cast5();
test_nessie_cast5();
goto restart;
continue;
error:

4
nessie_bc_test.c
View File

@ -241,9 +241,10 @@ void nessie_bc_run(void){
for(i=0; i<nessie_bc_ctx.blocksize_B; ++i){
buffer[i]=kasumi_plain[i%sizeof(kasumi_plain)];
}
nessie_bc_enc(key, buffer);
/* half done ;-) */
/* test set 5 */
set=1;
set=5;
print_setheader(set);
for(i=0; i<nessie_bc_ctx.keysize_b; ++i){
print_set_vector(set, i);
@ -291,5 +292,6 @@ void nessie_bc_run(void){
for(i=0; i<nessie_bc_ctx.blocksize_B; ++i){
buffer[i]=kasumi_plain[i%sizeof(kasumi_plain)];
}
nessie_bc_dec(key, buffer);
print_footer();
}

461
serpent-sboxes-bitslice.c Normal file
View File

@ -0,0 +1,461 @@
/* serpent-sboxes.c
* a non-bitsliced implementation of the serpent sboxes
* author: Daniel Otte
* email: daniel.otte@rub.de
* license: GPLv3
*/
#include <stdint.h>
#include <string.h>
#include <avr/pgmspace.h>
#include "serpent-sboxes.h"
/* S0: 3 8 15 1 10 6 5 11 14 13 4 2 7 0 9 12 */
/* depth = 5,7,4,2, Total gates=18 */
static
void sb0(uint8_t* out, const uint8_t* in, uint8_t i){
// (a,b,c,d,w,x,y,z)
uint8_t t01, t02, t03, t05, t06, t07, t08, t09, t11, t12, t13, t14, t15, t17;
t01 = in[4*1+i] ^ in[4*2+i];
t02 = in[4*0+i] | in[4*3+i];
t03 = in[4*0+i] ^ in[4*1+i];
out[4*3+i] = t02 ^ t01;
t05 = in[4*2+i] | out[4*3+i];
t06 = in[4*0+i] ^ in[4*3+i];
t07 = in[4*1+i] | in[4*2+i];
t08 = in[4*3+i] & t05;
t09 = t03 & t07;
out[4*2+i] = t09 ^ t08;
t11 = t09 & out[4*2+i];
t12 = in[4*2+i] ^ in[4*3+i];
t13 = t07 ^ t11;
t14 = in[4*1+i] & t06;
t15 = t06 ^ t13;
out[4*0+i] = ~ t15;
t17 = out[4*0+i] ^ t14;
out[4*1+i] = t12 ^ t17;
}
/* InvS0: 13 3 11 0 10 6 5 12 1 14 4 7 15 9 8 2 */
/* depth = 8,4,3,6, Total gates=19 */
static
void sb0_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t08, t09, t10, t12, t13, t14, t15, t17, t18, t01;
t01 = in[4*2+i] ^ in[4*3+i];
t02 = in[4*0+i] | in[4*1+i];
t03 = in[4*1+i] | in[4*2+i];
t04 = in[4*2+i] & t01;
t05 = t02 ^ t01;
t06 = in[4*0+i] | t04;
out[4*2+i] = ~ t05;
t08 = in[4*1+i] ^ in[4*3+i];
t09 = t03 & t08;
t10 = in[4*3+i] | out[4*2+i];
out[4*1+i] = t09 ^ t06;
t12 = in[4*0+i] | t05;
t13 = out[4*1+i] ^ t12;
t14 = t03 ^ t10;
t15 = in[4*0+i] ^ in[4*2+i];
out[4*3+i] = t14 ^ t13;
t17 = t05 & t13;
t18 = t14 | t17;
out[4*0+i] = t15 ^ t18;
}
/* S1: 15 12 2 7 9 0 5 10 1 11 14 8 6 13 3 4 */
/* depth = 10,7,3,5, Total gates=18 */
static
void sb1(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t07, t08, t10, t11, t12, t13, t16, t17, t01;
t01 = in[4*0+i] | in[4*3+i];
t02 = in[4*2+i] ^ in[4*3+i];
t03 = ~ in[4*1+i];
t04 = in[4*0+i] ^ in[4*2+i];
t05 = in[4*0+i] | t03;
t06 = in[4*3+i] & t04;
t07 = t01 & t02;
t08 = in[4*1+i] | t06;
out[4*2+i] = t02 ^ t05;
t10 = t07 ^ t08;
t11 = t01 ^ t10;
t12 = out[4*2+i] ^ t11;
t13 = in[4*1+i] & in[4*3+i];
out[4*3+i] = ~ t10;
out[4*1+i] = t13 ^ t12;
t16 = t10 | out[4*1+i];
t17 = t05 & t16;
out[4*0+i] = in[4*2+i] ^ t17;
}
/* InvS1: 5 8 2 14 15 6 12 3 11 4 7 9 1 13 10 0 */
/* depth = 7,4,5,3, Total gates=18 */
static void sb1_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t14, t15, t17, t01;
t01 = in[4*0+i] ^ in[4*1+i];
t02 = in[4*1+i] | in[4*3+i];
t03 = in[4*0+i] & in[4*2+i];
t04 = in[4*2+i] ^ t02;
t05 = in[4*0+i] | t04;
t06 = t01 & t05;
t07 = in[4*3+i] | t03;
t08 = in[4*1+i] ^ t06;
t09 = t07 ^ t06;
t10 = t04 | t03;
t11 = in[4*3+i] & t08;
out[4*2+i] = ~ t09;
out[4*1+i] = t10 ^ t11;
t14 = in[4*0+i] | out[4*2+i];
t15 = t06 ^ out[4*1+i];
out[4*3+i] = t01 ^ t04;
t17 = in[4*2+i] ^ t15;
out[4*0+i] = t14 ^ t17;
}
/* S2: 8 6 7 9 3 12 10 15 13 1 14 4 0 11 5 2 */
/* depth = 3,8,11,7, Total gates=16 */
static void sb2(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t05, t06, t07, t08, t09, t10, t12, t13, t14, t01;
t01 = in[4*0+i] | in[4*2+i];
t02 = in[4*0+i] ^ in[4*1+i];
t03 = in[4*3+i] ^ t01;
out[4*0+i] = t02 ^ t03;
t05 = in[4*2+i] ^ out[4*0+i];
t06 = in[4*1+i] ^ t05;
t07 = in[4*1+i] | t05;
t08 = t01 & t06;
t09 = t03 ^ t07;
t10 = t02 | t09;
out[4*1+i] = t10 ^ t08;
t12 = in[4*0+i] | in[4*3+i];
t13 = t09 ^ out[4*1+i];
t14 = in[4*1+i] ^ t13;
out[4*3+i] = ~ t09;
out[4*2+i] = t12 ^ t14;
}
/* InvS2: 12 9 15 4 11 14 1 2 0 3 6 13 5 8 10 7 */
/* depth = 3,6,8,3, Total gates=18 */
static void sb2_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t06, t07, t08, t09, t10, t11, t12, t15, t16, t17, t01;
t01 = in[4*0+i] ^ in[4*3+i];
t02 = in[4*2+i] ^ in[4*3+i];
t03 = in[4*0+i] & in[4*2+i];
t04 = in[4*1+i] | t02;
out[4*0+i] = t01 ^ t04;
t06 = in[4*0+i] | in[4*2+i];
t07 = in[4*3+i] | out[4*0+i];
t08 = ~ in[4*3+i];
t09 = in[4*1+i] & t06;
t10 = t08 | t03;
t11 = in[4*1+i] & t07;
t12 = t06 & t02;
out[4*3+i] = t09 ^ t10;
out[4*1+i] = t12 ^ t11;
t15 = in[4*2+i] & out[4*3+i];
t16 = out[4*0+i] ^ out[4*1+i];
t17 = t10 ^ t15;
out[4*2+i] = t16 ^ t17;
}
/* S3: 0 15 11 8 12 9 6 3 13 1 2 4 10 7 5 14 */
/* depth = 8,3,5,5, Total gates=18 */
static void sb3(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t13, t14, t15, t01;
t01 = in[4*0+i] ^ in[4*2+i];
t02 = in[4*0+i] | in[4*3+i];
t03 = in[4*0+i] & in[4*3+i];
t04 = t01 & t02;
t05 = in[4*1+i] | t03;
t06 = in[4*0+i] & in[4*1+i];
t07 = in[4*3+i] ^ t04;
t08 = in[4*2+i] | t06;
t09 = in[4*1+i] ^ t07;
t10 = in[4*3+i] & t05;
t11 = t02 ^ t10;
out[4*3+i] = t08 ^ t09;
t13 = in[4*3+i] | out[4*3+i];
t14 = in[4*0+i] | t07;
t15 = in[4*1+i] & t13;
out[4*2+i] = t08 ^ t11;
out[4*0+i] = t14 ^ t15;
out[4*1+i] = t05 ^ t04;
}
/* InvS3: 0 9 10 7 11 14 6 13 3 5 12 2 4 8 15 1 */
/* depth = 3,6,4,4, Total gates=17 */
static void sb3_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t07, t09, t11, t12, t13, t14, t16, t01;
t01 = in[4*2+i] | in[4*3+i];
t02 = in[4*0+i] | in[4*3+i];
t03 = in[4*2+i] ^ t02;
t04 = in[4*1+i] ^ t02;
t05 = in[4*0+i] ^ in[4*3+i];
t06 = t04 & t03;
t07 = in[4*1+i] & t01;
out[4*2+i] = t05 ^ t06;
t09 = in[4*0+i] ^ t03;
out[4*0+i] = t07 ^ t03;
t11 = out[4*0+i] | t05;
t12 = t09 & t11;
t13 = in[4*0+i] & out[4*2+i];
t14 = t01 ^ t05;
out[4*1+i] = in[4*1+i] ^ t12;
t16 = in[4*1+i] | t13;
out[4*3+i] = t14 ^ t16;
}
/* S4: 1 15 8 3 12 0 11 6 2 5 4 10 9 14 7 13 */
/* depth = 6,7,5,3, Total gates=19 */
static void sb4(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t08, t09, t10, t11, t12, t13, t14, t15, t16, t01;
t01 = in[4*0+i] | in[4*1+i];
t02 = in[4*1+i] | in[4*2+i];
t03 = in[4*0+i] ^ t02;
t04 = in[4*1+i] ^ in[4*3+i];
t05 = in[4*3+i] | t03;
t06 = in[4*3+i] & t01;
out[4*3+i] = t03 ^ t06;
t08 = out[4*3+i] & t04;
t09 = t04 & t05;
t10 = in[4*2+i] ^ t06;
t11 = in[4*1+i] & in[4*2+i];
t12 = t04 ^ t08;
t13 = t11 | t03;
t14 = t10 ^ t09;
t15 = in[4*0+i] & t05;
t16 = t11 | t12;
out[4*2+i] = t13 ^ t08;
out[4*1+i] = t15 ^ t16;
out[4*0+i] = ~ t14;
}
/* InvS4: 5 0 8 3 10 9 7 14 2 12 11 6 4 15 13 1 */
/* depth = 6,4,7,3, Total gates=17 */
static void sb4_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t07, t09, t10, t11, t12, t13, t15, t01;
t01 = in[4*1+i] | in[4*3+i];
t02 = in[4*2+i] | in[4*3+i];
t03 = in[4*0+i] & t01;
t04 = in[4*1+i] ^ t02;
t05 = in[4*2+i] ^ in[4*3+i];
t06 = ~ t03;
t07 = in[4*0+i] & t04;
out[4*1+i] = t05 ^ t07;
t09 = out[4*1+i] | t06;
t10 = in[4*0+i] ^ t07;
t11 = t01 ^ t09;
t12 = in[4*3+i] ^ t04;
t13 = in[4*2+i] | t10;
out[4*3+i] = t03 ^ t12;
t15 = in[4*0+i] ^ t04;
out[4*2+i] = t11 ^ t13;
out[4*0+i] = t15 ^ t09;
}
/* S5: 15 5 2 11 4 10 9 12 0 3 14 8 13 6 7 1 */
/* depth = 4,6,8,6, Total gates=17 */
static void sb5(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t07, t08, t09, t10, t11, t12, t13, t14, t01;
t01 = in[4*1+i] ^ in[4*3+i];
t02 = in[4*1+i] | in[4*3+i];
t03 = in[4*0+i] & t01;
t04 = in[4*2+i] ^ t02;
t05 = t03 ^ t04;
out[4*0+i] = ~ t05;
t07 = in[4*0+i] ^ t01;
t08 = in[4*3+i] | out[4*0+i];
t09 = in[4*1+i] | t05;
t10 = in[4*3+i] ^ t08;
t11 = in[4*1+i] | t07;
t12 = t03 | out[4*0+i];
t13 = t07 | t10;
t14 = t01 ^ t11;
out[4*2+i] = t09 ^ t13;
out[4*1+i] = t07 ^ t08;
out[4*3+i] = t12 ^ t14;
}
/* InvS5: 8 15 2 9 4 1 13 14 11 6 5 3 7 12 10 0 */
/* depth = 4,6,9,7, Total gates=17 */
static void sb5_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t07, t08, t09, t10, t12, t13, t15, t16, t01;
t01 = in[4*0+i] & in[4*3+i];
t02 = in[4*2+i] ^ t01;
t03 = in[4*0+i] ^ in[4*3+i];
t04 = in[4*1+i] & t02;
t05 = in[4*0+i] & in[4*2+i];
out[4*0+i] = t03 ^ t04;
t07 = in[4*0+i] & out[4*0+i];
t08 = t01 ^ out[4*0+i];
t09 = in[4*1+i] | t05;
t10 = ~ in[4*1+i];
out[4*1+i] = t08 ^ t09;
t12 = t10 | t07;
t13 = out[4*0+i] | out[4*1+i];
out[4*3+i] = t02 ^ t12;
t15 = t02 ^ t13;
t16 = in[4*1+i] ^ in[4*3+i];
out[4*2+i] = t16 ^ t15;
}
/* S6: 7 2 12 5 8 4 6 11 14 9 1 15 13 3 10 0 */
/* depth = 8,3,6,3, Total gates=19 */
static void sb6(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t07, t08, t09, t10, t11, t12, t13, t15, t17, t18, t01;
t01 = in[4*0+i] & in[4*3+i];
t02 = in[4*1+i] ^ in[4*2+i];
t03 = in[4*0+i] ^ in[4*3+i];
t04 = t01 ^ t02;
t05 = in[4*1+i] | in[4*2+i];
out[4*1+i] = ~ t04;
t07 = t03 & t05;
t08 = in[4*1+i] & out[4*1+i];
t09 = in[4*0+i] | in[4*2+i];
t10 = t07 ^ t08;
t11 = in[4*1+i] | in[4*3+i];
t12 = in[4*2+i] ^ t11;
t13 = t09 ^ t10;
out[4*2+i] = ~ t13;
t15 = out[4*1+i] & t03;
out[4*3+i] = t12 ^ t07;
t17 = in[4*0+i] ^ in[4*1+i];
t18 = out[4*2+i] ^ t15;
out[4*0+i] = t17 ^ t18;
}
/* InvS6: 15 10 1 13 5 3 6 0 4 9 14 7 2 12 8 11 */
/* depth = 5,3,8,6, Total gates=19 */
static void sb6_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t07, t08, t09, t12, t13, t14, t15, t16, t17, t01;
t01 = in[4*0+i] ^ in[4*2+i];
t02 = ~ in[4*2+i];
t03 = in[4*1+i] & t01;
t04 = in[4*1+i] | t02;
t05 = in[4*3+i] | t03;
t06 = in[4*1+i] ^ in[4*3+i];
t07 = in[4*0+i] & t04;
t08 = in[4*0+i] | t02;
t09 = t07 ^ t05;
out[4*1+i] = t06 ^ t08;
out[4*0+i] = ~ t09;
t12 = in[4*1+i] & out[4*0+i];
t13 = t01 & t05;
t14 = t01 ^ t12;
t15 = t07 ^ t13;
t16 = in[4*3+i] | t02;
t17 = in[4*0+i] ^ out[4*1+i];
out[4*3+i] = t17 ^ t15;
out[4*2+i] = t16 ^ t14;
}
/* S7: 1 13 15 0 14 8 2 11 7 4 12 10 9 3 5 6 */
/* depth = 10,7,10,4, Total gates=19 */
static void sb7(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t05, t06, t08, t09, t10, t11, t13, t14, t15, t16, t17, t01;
t01 = in[4*0+i] & in[4*2+i];
t02 = ~ in[4*3+i];
t03 = in[4*0+i] & t02;
t04 = in[4*1+i] | t01;
t05 = in[4*0+i] & in[4*1+i];
t06 = in[4*2+i] ^ t04;
out[4*3+i] = t03 ^ t06;
t08 = in[4*2+i] | out[4*3+i];
t09 = in[4*3+i] | t05;
t10 = in[4*0+i] ^ t08;
t11 = t04 & out[4*3+i];
out[4*1+i] = t09 ^ t10;
t13 = in[4*1+i] ^ out[4*1+i];
t14 = t01 ^ out[4*1+i];
t15 = in[4*2+i] ^ t05;
t16 = t11 | t13;
t17 = t02 | t14;
out[4*0+i] = t15 ^ t17;
out[4*2+i] = in[4*0+i] ^ t16;
}
/* InvS7: 3 0 6 13 9 14 15 8 5 12 11 7 10 1 4 2 */
/* depth = 9,7,3,3, Total gates=18 */
static void sb7_inv(uint8_t* out, const uint8_t* in, uint8_t i){
uint8_t t02, t03, t04, t06, t07, t08, t09, t10, t11, t13, t14, t15, t16, t01;
t01 = in[4*0+i] & in[4*1+i];
t02 = in[4*0+i] | in[4*1+i];
t03 = in[4*2+i] | t01;
t04 = in[4*3+i] & t02;
out[4*3+i] = t03 ^ t04;
t06 = in[4*1+i] ^ t04;
t07 = in[4*3+i] ^ out[4*3+i];
t08 = ~ t07;
t09 = t06 | t08;
t10 = in[4*1+i] ^ in[4*3+i];
t11 = in[4*0+i] | in[4*3+i];
out[4*1+i] = in[4*0+i] ^ t09;
t13 = in[4*2+i] ^ t06;
t14 = in[4*2+i] & t11;
t15 = in[4*3+i] | out[4*1+i];
t16 = t01 | t10;
out[4*0+i] = t13 ^ t15;
out[4*2+i] = t14 ^ t16;
}
typedef void(*sb_fpt)(uint8_t*, const uint8_t*, uint8_t i);
sb_fpt sf_tab[] PROGMEM = {
sb0, sb1, sb2, sb3,
sb4, sb5, sb6, sb7
};
sb_fpt sinvf_tab[] PROGMEM = {
sb0_inv, sb1_inv, sb2_inv, sb3_inv,
sb4_inv, sb5_inv, sb6_inv, sb7_inv
};
void sbox128(void * w, uint8_t box){
uint8_t i, buffer[16];
box &= 0x7;
sb_fpt fp;
fp = (sb_fpt)pgm_read_word(&(sf_tab[box]));
for(i=0; i<4; ++i){
fp(buffer, (uint8_t*)w, i);
}
memcpy(w, buffer, 16);
}
void inv_sbox128(void * w, uint8_t box){
uint8_t i, buffer[16];
box &= 0x7;
sb_fpt fp;
fp = (sb_fpt)pgm_read_word(&(sinvf_tab[box]));
for(i=0; i<4; ++i){
fp(buffer, (uint8_t*)w, i);
}
memcpy(w, buffer, 16);
}

108
serpent-sboxes.c Normal file
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@ -0,0 +1,108 @@
/* serpent-sboxes.c
* a non-bitsliced implementation of the serpent sboxes
* author: Daniel Otte
* email: daniel.otte@rub.de
* license: GPLv3
*/
#include <stdint.h>
#include <string.h> /* memset() */
#include <avr/pgmspace.h>
#include "serpent-sboxes.h"
uint8_t sbox[] PROGMEM = {
0x38, 0xF1, 0xA6, 0x5B, 0xED, 0x42, 0x70, 0x9C,
0xFC, 0x27, 0x90, 0x5A, 0x1B, 0xE8, 0x6D, 0x34,
0x86, 0x79, 0x3C, 0xAF, 0xD1, 0xE4, 0x0B, 0x52,
0x0F, 0xB8, 0xC9, 0x63, 0xD1, 0x24, 0xA7, 0x5E,
0x1F, 0x83, 0xC0, 0xB6, 0x25, 0x4A, 0x9E, 0x7D,
0xF5, 0x2B, 0x4A, 0x9C, 0x03, 0xE8, 0xD6, 0x71,
0x72, 0xC5, 0x84, 0x6B, 0xE9, 0x1F, 0xD3, 0xA0,
0x1D, 0xF0, 0xE8, 0x2B, 0x74, 0xCA, 0x93, 0x56,
/* now the inverted sboxes */
0xD3, 0xB0, 0xA6, 0x5C, 0x1E, 0x47, 0xF9, 0x82,
0x58, 0x2E, 0xF6, 0xC3, 0xB4, 0x79, 0x1D, 0xA0,
0xC9, 0xF4, 0xBE, 0x12, 0x03, 0x6D, 0x58, 0xA7,
0x09, 0xA7, 0xBE, 0x6D, 0x35, 0xC2, 0x48, 0xF1,
0x50, 0x83, 0xA9, 0x7E, 0x2C, 0xB6, 0x4F, 0xD1,
0x8F, 0x29, 0x41, 0xDE, 0xB6, 0x53, 0x7C, 0xA0,
0xFA, 0x1D, 0x53, 0x60, 0x49, 0xE7, 0x2C, 0x8B,
0x30, 0x6D, 0x9E, 0xF8, 0x5C, 0xB7, 0xA1, 0x42
};
#define SHR_O(a) c=(a)&1; ((a) = (a)>>1)
#define SHR_I(a) ((a) = (c?0x80:0x00)| ((a)>>1))
static void ip(uint8_t *o, uint32_t *i){
uint8_t c; // carry
uint8_t n,m;
memset(o, 0, 16);
for(n=0; n<16; ++n){
for(m=0; m<2; ++m){
SHR_O(i[0]);
SHR_I(o[n]);
SHR_O(i[1]);
SHR_I(o[n]);
SHR_O(i[2]);
SHR_I(o[n]);
SHR_O(i[3]);
SHR_I(o[n]);
}
}
}
#undef SHR_I
#define SHR_I(a) ((a) = (c?0x80000000L:0x00L)| ((a)>>1)) /* we use 32-bit words here */
static void fp(uint32_t *o, uint32_t *i){
uint8_t c; // carry
uint8_t n,m;
memset(o, 0, 16);
for(n=0; n<4; ++n){
for(m=0; m<8; ++m){
SHR_O(i[n]);
SHR_I(o[0]);
SHR_O(i[n]);
SHR_I(o[1]);
SHR_O(i[n]);
SHR_I(o[2]);
SHR_O(i[n]);
SHR_I(o[3]);
}
}
}
/******************************************************************************/
static void sbox128x(uint8_t box, void* w){
uint8_t sb[16];
uint8_t i,t,x;
box &= 0x0f;
/* load sbox */
for(i=0; i<8; ++i){
t = pgm_read_byte(sbox + box*8 + i);
sb[2*i+0]=t>>4;
sb[2*i+1]=t&0xf;
}
uint8_t o[16];
ip(o, w);
for(i=0; i<16; ++i){
t = ((uint8_t*)o)[i];
x = sb[t>>4];
x <<= 4;
x |= sb[t&0xf];
((uint8_t*)o)[i] = x;
}
fp(w, (uint32_t*)o);
}
void sbox128(void * w, uint8_t box){
sbox128x(box&0x7, w);
}
void inv_sbox128(void * w, uint8_t box){
sbox128x(((box&0x7)|0x8), w);
}

10
serpent-sboxes.h Normal file
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@ -0,0 +1,10 @@
#ifndef SERPENTSBOXES_H_
#define SERPENTSBOXES_H_
#include <stdint.h>
void sbox128(void * w, uint8_t box);
void inv_sbox128(void * w, uint8_t box);
#endif /*SERPENTSBOXES_H_*/

98
serpent.c
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@ -9,103 +9,7 @@
#include <string.h> /* memset() */
#include <avr/pgmspace.h>
#include "serpent.h"
uint8_t sbox[] PROGMEM = {
0x38, 0xF1, 0xA6, 0x5B, 0xED, 0x42, 0x70, 0x9C,
0xFC, 0x27, 0x90, 0x5A, 0x1B, 0xE8, 0x6D, 0x34,
0x86, 0x79, 0x3C, 0xAF, 0xD1, 0xE4, 0x0B, 0x52,
0x0F, 0xB8, 0xC9, 0x63, 0xD1, 0x24, 0xA7, 0x5E,
0x1F, 0x83, 0xC0, 0xB6, 0x25, 0x4A, 0x9E, 0x7D,
0xF5, 0x2B, 0x4A, 0x9C, 0x03, 0xE8, 0xD6, 0x71,
0x72, 0xC5, 0x84, 0x6B, 0xE9, 0x1F, 0xD3, 0xA0,
0x1D, 0xF0, 0xE8, 0x2B, 0x74, 0xCA, 0x93, 0x56,
/* now the inverted sboxes */
0xD3, 0xB0, 0xA6, 0x5C, 0x1E, 0x47, 0xF9, 0x82,
0x58, 0x2E, 0xF6, 0xC3, 0xB4, 0x79, 0x1D, 0xA0,
0xC9, 0xF4, 0xBE, 0x12, 0x03, 0x6D, 0x58, 0xA7,
0x09, 0xA7, 0xBE, 0x6D, 0x35, 0xC2, 0x48, 0xF1,
0x50, 0x83, 0xA9, 0x7E, 0x2C, 0xB6, 0x4F, 0xD1,
0x8F, 0x29, 0x41, 0xDE, 0xB6, 0x53, 0x7C, 0xA0,
0xFA, 0x1D, 0x53, 0x60, 0x49, 0xE7, 0x2C, 0x8B,
0x30, 0x6D, 0x9E, 0xF8, 0x5C, 0xB7, 0xA1, 0x42
};
#define SHR_O(a) c=(a)&1; ((a) = (a)>>1)
#define SHR_I(a) ((a) = (c?0x80:0x00)| ((a)>>1))
static void ip(uint8_t *o, uint32_t *i){
uint8_t c; // carry
uint8_t n,m;
memset(o, 0, 16);
for(n=0; n<16; ++n){
for(m=0; m<2; ++m){
SHR_O(i[0]);
SHR_I(o[n]);
SHR_O(i[1]);
SHR_I(o[n]);
SHR_O(i[2]);
SHR_I(o[n]);
SHR_O(i[3]);
SHR_I(o[n]);
}
}
}
#undef SHR_I
#define SHR_I(a) ((a) = (c?0x80000000L:0x00L)| ((a)>>1)) /* we use 32-bit words here */
static void fp(uint32_t *o, uint32_t *i){
uint8_t c; // carry
uint8_t n,m;
memset(o, 0, 16);
for(n=0; n<4; ++n){
for(m=0; m<8; ++m){
SHR_O(i[n]);
SHR_I(o[0]);
SHR_O(i[n]);
SHR_I(o[1]);
SHR_O(i[n]);
SHR_I(o[2]);
SHR_O(i[n]);
SHR_I(o[3]);
}
}
}
/******************************************************************************/
static void sbox128x(uint8_t box, void* w){
uint8_t sb[16];
uint8_t i,t,x;
box &= 0x0f;
/* load sbox */
for(i=0; i<8; ++i){
t = pgm_read_byte(sbox + box*8 + i);
sb[2*i+0]=t>>4;
sb[2*i+1]=t&0xf;
}
uint8_t o[16];
ip(o, w);
for(i=0; i<16; ++i){
t = ((uint8_t*)o)[i];
x = sb[t>>4];
x <<= 4;
x |= sb[t&0xf];
((uint8_t*)o)[i] = x;
}
fp(w, (uint32_t*)o);
}
static void sbox128(void * w, uint8_t box){
sbox128x(box&0x7, w);
}
static void inv_sbox128(void * w, uint8_t box){
sbox128x(((box&0x7)|0x8), w);
}
#include "serpent-sboxes.h"
/******************************************************************************/

4
serpent.mk
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@ -5,9 +5,9 @@ ALGO_NAME := SERPENT
BLOCK_CIPHERS += $(ALGO_NAME)
$(ALGO_NAME)_OBJ := serpent.o
$(ALGO_NAME)_OBJ := serpent.o serpent-sboxes-bitslice.o
$(ALGO_NAME)_TEST_BIN := main-serpent-test.o debug.o uart.o serial-tools.o \
serpent.o nessie_bc_test.o
serpent.o serpent-sboxes-bitslice.o nessie_bc_test.o
$(ALGO_NAME)_NESSIE_TEST := "nessie"
$(ALGO_NAME)_PEROFRMANCE_TEST := "performance"