3 This file is part of the AVR-Crypto-Lib.
4 Copyright (C) 2009 Daniel Otte (daniel.otte@rub.de)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 * \email daniel.otte@rub.de
24 * \license GPLv3 or later
30 #include <avr/pgmspace.h>
31 #include "bmw_large.h"
33 #define SHL64(a,n) ((a)<<(n))
34 #define SHR64(a,n) ((a)>>(n))
35 #define ROTL64(a,n) (((a)<<(n))|((a)>>(64-(n))))
36 #define ROTR64(a,n) (((a)>>(n))|((a)<<(64-(n))))
46 void ctx_dump(const bmw_large_ctx_t* ctx){
48 cli_putstr_P(PSTR("\r\n==== ctx dump ===="));
50 cli_putstr_P(PSTR("\r\n h["));
52 cli_putstr_P(PSTR("] = "));
53 cli_hexdump_rev(&(ctx->h[i]), 8);
55 cli_putstr_P(PSTR("\r\n counter = "));
56 cli_hexdump(&(ctx->counter), 4);
59 void dump_x(const uint64_t* q, uint8_t elements, char x){
61 cli_putstr_P(PSTR("\r\n==== "));
63 cli_putstr_P(PSTR(" dump ===="));
64 for(i=0; i<elements;++i){
65 cli_putstr_P(PSTR("\r\n "));
67 cli_putstr_P(PSTR("["));
69 cli_putstr_P(PSTR("] = "));
70 cli_hexdump_rev(&(q[i]), 8);
78 uint64_t bmw_large_s0(uint64_t x){
87 uint64_t bmw_large_s1(uint64_t x){
96 uint64_t bmw_large_s2(uint64_t x){
105 uint64_t bmw_large_s3(uint64_t x){
114 uint64_t bmw_large_s4(uint64_t x){
121 uint64_t bmw_large_s5(uint64_t x){
128 uint64_t bmw_large_r1(uint64_t x){
134 uint64_t bmw_large_r2(uint64_t x){
140 uint64_t bmw_large_r3(uint64_t x){
146 uint64_t bmw_large_r4(uint64_t x){
152 uint64_t bmw_large_r5(uint64_t x){
154 r = ROTR64(x, 64-37);
158 uint64_t bmw_large_r6(uint64_t x){
160 r = ROTR64(x, 64-43);
164 uint64_t bmw_large_r7(uint64_t x){
166 r = ROTR64(x, 64-53);
170 #define K 0x0555555555555555LL
171 #define MASK 0xFFFFFFFFFFFFFFFFLL
173 uint64_t k_lut[] PROGMEM = {
174 16LL*K, 17LL*K, 18LL*K, 19LL*K,
175 20LL*K, 21LL*K, 22LL*K, 23LL*K,
176 24LL*K, 25LL*K, 26LL*K, 27LL*K,
177 28LL*K, 29LL*K, 30LL*K, 31LL*K };
179 /* the same as above but precomputed to avoid compiler warnings */
181 uint64_t k_lut[] PROGMEM = {
182 0x5555555555555550LL, 0x5aaaaaaaaaaaaaa5LL, 0x5ffffffffffffffaLL,
183 0x655555555555554fLL, 0x6aaaaaaaaaaaaaa4LL, 0x6ffffffffffffff9LL,
184 0x755555555555554eLL, 0x7aaaaaaaaaaaaaa3LL, 0x7ffffffffffffff8LL,
185 0x855555555555554dLL, 0x8aaaaaaaaaaaaaa2LL, 0x8ffffffffffffff7LL,
186 0x955555555555554cLL, 0x9aaaaaaaaaaaaaa1LL, 0x9ffffffffffffff6LL,
187 0xa55555555555554bLL };
189 uint64_t bmw_large_expand1(uint8_t j, const uint64_t* q, const void* m, const void* h){
190 uint64_t(*s[])(uint64_t) = {bmw_large_s1, bmw_large_s2, bmw_large_s3, bmw_large_s0};
197 /* r = 0x0555555555555555LL*(j+16); */
198 r.v32[0] = pgm_read_dword(((uint8_t*)k_lut+8*j));
199 r.v32[1] = pgm_read_dword(((uint8_t*)k_lut+8*j+4));
204 a += ( ROTL64(((uint64_t*)m)[(j)&0xf], ((j+ 0)&0xf)+1)
205 + ROTL64(((uint64_t*)m)[(j+3)&0xf], ((j+ 3)&0xf)+1)
207 - ROTL64(((uint64_t*)m)[(j+10)&0xf],((j+10)&0xf)+1)
208 ) ^ ((uint64_t*)h)[(j+7)&0xf];
210 a += ((uint64_t*)m)[j&0xf];
211 a += ((uint64_t*)m)[(j+3)&0xf];
212 a -= ((uint64_t*)m)[(j+10)&0xf];
218 uint64_t bmw_large_expand2(uint8_t j, const uint64_t* q, const void* m, const void* h){
219 uint64_t(*rf[])(uint64_t) = {bmw_large_r1, bmw_large_r2, bmw_large_r3,
220 bmw_large_r4, bmw_large_r5, bmw_large_r6,
228 /* r = 0x0555555555555555LL*(j+16); */
229 r.v32[0] = pgm_read_dword(((uint8_t*)k_lut+8*j));
230 r.v32[1] = pgm_read_dword(((uint8_t*)k_lut+8*j+4));
231 for(i=0; i<14; i+=2){
234 for(i=0; i<14; i+=2){
235 a += rf[i/2](q[j+i+1]);
238 a += bmw_large_s4(q[j+14]);
239 a += bmw_large_s5(q[j+15]);
241 a += bmw_large_s5(q[j+14]);
242 a += bmw_large_s4(q[j+15]);
248 cli_putstr_P(PSTR("\n+++++++++ expand_2 ++++++++++++"));
251 t=ROTL64(((uint64_t*)m)[j], ((j+ 0)&0xf)+1);
253 t=ROTL64(((uint64_t*)m)[j], ((j+ 3)&0xf)+1);
255 t=ROTL64(((uint64_t*)m)[j], ((j+ 0)&0xf)+1);
260 a += ( ROTL64(((uint64_t*)m)[(j)&0xf], ((j+ 0)&0xf)+1)
261 + ROTL64(((uint64_t*)m)[(j+3)&0xf], ((j+ 3)&0xf)+1)
263 - ROTL64(((uint64_t*)m)[(j+10)&0xf],((j+10)&0xf)+1)
264 ) ^ ((uint64_t*)h)[(j+7)&0xf];
266 a += ((uint64_t*)m)[j&0xf];
267 a += ((uint64_t*)m)[(j+3)&0xf];
268 a -= ((uint64_t*)m)[(j+10)&0xf];
276 uint8_t f0_lut[] PROGMEM ={
277 5<<1, ( 7<<1)+1, (10<<1)+0, (13<<1)+0, (14<<1)+0,
278 6<<1, ( 8<<1)+1, (11<<1)+0, (14<<1)+0, (15<<1)+1,
279 0<<1, ( 7<<1)+0, ( 9<<1)+0, (12<<1)+1, (15<<1)+0,
280 0<<1, ( 1<<1)+1, ( 8<<1)+0, (10<<1)+1, (13<<1)+0,
281 1<<1, ( 2<<1)+0, ( 9<<1)+0, (11<<1)+1, (14<<1)+1,
282 3<<1, ( 2<<1)+1, (10<<1)+0, (12<<1)+1, (15<<1)+0,
283 4<<1, ( 0<<1)+1, ( 3<<1)+1, (11<<1)+1, (13<<1)+0,
284 1<<1, ( 4<<1)+1, ( 5<<1)+1, (12<<1)+1, (14<<1)+1,
285 2<<1, ( 5<<1)+1, ( 6<<1)+1, (13<<1)+0, (15<<1)+1,
286 0<<1, ( 3<<1)+1, ( 6<<1)+0, ( 7<<1)+1, (14<<1)+0,
287 8<<1, ( 1<<1)+1, ( 4<<1)+1, ( 7<<1)+1, (15<<1)+0,
288 8<<1, ( 0<<1)+1, ( 2<<1)+1, ( 5<<1)+1, ( 9<<1)+0,
289 1<<1, ( 3<<1)+0, ( 6<<1)+1, ( 9<<1)+1, (10<<1)+0,
290 2<<1, ( 4<<1)+0, ( 7<<1)+0, (10<<1)+0, (11<<1)+0,
291 3<<1, ( 5<<1)+1, ( 8<<1)+0, (11<<1)+1, (12<<1)+1,
292 12<<1, ( 4<<1)+1, ( 6<<1)+1, ( 9<<1)+1, (13<<1)+0
295 void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
296 uint8_t i,j=-1,v,sign,l=0;
297 uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
298 bmw_large_s3, bmw_large_s4 };
300 ((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
303 // memset(q, 0, 4*16);
304 for(i=0; i<5*16; ++i){
305 v = pgm_read_byte(f0_lut+i);
326 ((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
329 q[i] += h[(i+1)&0xf];
335 void bmw_large_f0(uint64_t* q, const uint64_t* h, const void* m){
337 uint64_t(*s[])(uint64_t)={ bmw_large_s0, bmw_large_s1, bmw_large_s2,
338 bmw_large_s3, bmw_large_s4 };
340 ((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
342 // dump_x(t, 16, 'T');
343 q[ 0] = (h[ 5] - h[ 7] + h[10] + h[13] + h[14]);
344 q[ 1] = (h[ 6] - h[ 8] + h[11] + h[14] - h[15]);
345 q[ 2] = (h[ 0] + h[ 7] + h[ 9] - h[12] + h[15]);
346 q[ 3] = (h[ 0] - h[ 1] + h[ 8] - h[10] + h[13]);
347 q[ 4] = (h[ 1] + h[ 2] + h[ 9] - h[11] - h[14]);
348 q[ 5] = (h[ 3] - h[ 2] + h[10] - h[12] + h[15]);
349 q[ 6] = (h[ 4] - h[ 0] - h[ 3] - h[11] + h[13]);
350 q[ 7] = (h[ 1] - h[ 4] - h[ 5] - h[12] - h[14]);
351 q[ 8] = (h[ 2] - h[ 5] - h[ 6] + h[13] - h[15]);
352 q[ 9] = (h[ 0] - h[ 3] + h[ 6] - h[ 7] + h[14]);
353 q[10] = (h[ 8] - h[ 1] - h[ 4] - h[ 7] + h[15]);
354 q[11] = (h[ 8] - h[ 0] - h[ 2] - h[ 5] + h[ 9]);
355 q[12] = (h[ 1] + h[ 3] - h[ 6] - h[ 9] + h[10]);
356 q[13] = (h[ 2] + h[ 4] + h[ 7] + h[10] + h[11]);
357 q[14] = (h[ 3] - h[ 5] + h[ 8] - h[11] - h[12]);
358 q[15] = (h[12] - h[ 4] - h[ 6] - h[ 9] + h[13]);
365 ((uint64_t*)h)[i] ^= ((uint64_t*)m)[i];
368 q[i] += h[(i+1)&0xf];
375 void bmw_large_f1(uint64_t* q, const void* m, const uint64_t* h){
377 q[16] = bmw_large_expand1(0, q, m, h);
378 q[17] = bmw_large_expand1(1, q, m, h);
380 q[16+i] = bmw_large_expand2(i, q, m, h);
384 void bmw_large_f2(uint64_t* h, const uint64_t* q, const void* m){
395 cli_putstr_P(PSTR("\r\n XL = "));
396 cli_hexdump_rev(&xl, 4);
397 cli_putstr_P(PSTR("\r\n XH = "));
398 cli_hexdump_rev(&xh, 4);
401 h[0] ^= SHL64(xh, 5) ^ SHR64(q[16], 5);
402 h[1] ^= SHR64(xh, 7) ^ SHL64(q[17], 8);
403 h[2] ^= SHR64(xh, 5) ^ SHL64(q[18], 5);
404 h[3] ^= SHR64(xh, 1) ^ SHL64(q[19], 5);
405 h[4] ^= SHR64(xh, 3) ^ q[20];
406 h[5] ^= SHL64(xh, 6) ^ SHR64(q[21], 6);
407 h[6] ^= SHR64(xh, 4) ^ SHL64(q[22], 6);
408 h[7] ^= SHR64(xh,11) ^ SHL64(q[23], 2);
410 h[i] += xl ^ q[24+i] ^ q[i];
413 h[8+i] ^= xh ^ q[24+i];
414 h[8+i] += ROTL64(h[(4+i)%8],i+9);
416 h[ 8] += SHL64(xl, 8) ^ q[23] ^ q[ 8];
417 h[ 9] += SHR64(xl, 6) ^ q[16] ^ q[ 9];
418 h[10] += SHL64(xl, 6) ^ q[17] ^ q[10];
419 h[11] += SHL64(xl, 4) ^ q[18] ^ q[11];
420 h[12] += SHR64(xl, 3) ^ q[19] ^ q[12];
421 h[13] += SHR64(xl, 4) ^ q[20] ^ q[13];
422 h[14] += SHR64(xl, 7) ^ q[21] ^ q[14];
423 h[15] += SHR64(xl, 2) ^ q[22] ^ q[15];
426 void bmw_large_nextBlock(bmw_large_ctx_t* ctx, const void* block){
428 dump_x(block, 16, 'M');
429 bmw_large_f0(q, ctx->h, block);
431 bmw_large_f1(q, block, ctx->h);
433 bmw_large_f2(ctx->h, q, block);
438 void bmw_large_lastBlock(bmw_large_ctx_t* ctx, const void* block, uint16_t length_b){
440 while(length_b >= BMW_LARGE_BLOCKSIZE){
441 bmw_large_nextBlock(ctx, block);
442 length_b -= BMW_LARGE_BLOCKSIZE;
443 block = (uint8_t*)block + BMW_LARGE_BLOCKSIZE_B;
445 memset(buffer, 0, 128);
446 memcpy(buffer, block, (length_b+7)/8);
447 buffer[length_b>>3] |= 0x80 >> (length_b&0x07);
448 if(length_b+1>128*8-64){
449 bmw_large_nextBlock(ctx, buffer);
450 memset(buffer, 0, 128-8);
453 *((uint64_t*)&(buffer[128-8])) = (uint64_t)(ctx->counter*1024LL)+(uint64_t)length_b;
454 bmw_large_nextBlock(ctx, buffer);
458 memset(buffer, 0xaa, 128);
460 buffer[8*i] = i + 0xa0;
462 bmw_large_f0(q, (uint64_t*)buffer, ctx->h);
463 bmw_large_f1(q, ctx->h, (uint64_t*)buffer);
464 bmw_large_f2((uint64_t*)buffer, q, ctx->h);
465 memcpy(ctx->h, buffer, 128);
469 void bmw384_init(bmw384_ctx_t* ctx){
471 ctx->h[0] = 0x0001020304050607LL;
473 ctx->h[i] = ctx->h[i-1]+ 0x0808080808080808LL;
476 ctx->h[6] = 0x3031323324353637LL;
482 void bmw512_init(bmw512_ctx_t* ctx){
484 ctx->h[0] = 0x8081828384858687LL;
486 ctx->h[i] = ctx->h[i-1]+ 0x0808080808080808LL;
492 void bmw384_nextBlock(bmw384_ctx_t* ctx, const void* block){
493 bmw_large_nextBlock(ctx, block);
496 void bmw512_nextBlock(bmw512_ctx_t* ctx, const void* block){
497 bmw_large_nextBlock(ctx, block);
500 void bmw384_lastBlock(bmw384_ctx_t* ctx, const void* block, uint16_t length_b){
501 bmw_large_lastBlock(ctx, block, length_b);
504 void bmw512_lastBlock(bmw512_ctx_t* ctx, const void* block, uint16_t length_b){
505 bmw_large_lastBlock(ctx, block, length_b);
508 void bmw384_ctx2hash(void* dest, const bmw384_ctx_t* ctx){
509 memcpy(dest, &(ctx->h[10]), 384/8);
512 void bmw512_ctx2hash(void* dest, const bmw512_ctx_t* ctx){
513 memcpy(dest, &(ctx->h[8]), 512/8);
516 void bmw384(void* dest, const void* msg, uint32_t length_b){
519 while(length_b>=BMW_LARGE_BLOCKSIZE){
520 bmw_large_nextBlock(&ctx, msg);
521 length_b -= BMW_LARGE_BLOCKSIZE;
522 msg = (uint8_t*)msg + BMW_LARGE_BLOCKSIZE_B;
524 bmw_large_lastBlock(&ctx, msg, length_b);
525 bmw384_ctx2hash(dest, &ctx);
528 void bmw512(void* dest, const void* msg, uint32_t length_b){
531 while(length_b>=BMW_LARGE_BLOCKSIZE){
532 bmw_large_nextBlock(&ctx, msg);
533 length_b -= BMW_LARGE_BLOCKSIZE;
534 msg = (uint8_t*)msg + BMW_LARGE_BLOCKSIZE_B;
536 bmw_large_lastBlock(&ctx, msg, length_b);
537 bmw512_ctx2hash(dest, &ctx);