aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/camellia.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/camellia.c')
-rw-r--r--crypto/camellia.c84
1 files changed, 36 insertions, 48 deletions
diff --git a/crypto/camellia.c b/crypto/camellia.c
index 493fee7e0a8b..b1cc4de6493c 100644
--- a/crypto/camellia.c
+++ b/crypto/camellia.c
@@ -35,6 +35,8 @@
35#include <linux/init.h> 35#include <linux/init.h>
36#include <linux/kernel.h> 36#include <linux/kernel.h>
37#include <linux/module.h> 37#include <linux/module.h>
38#include <linux/bitops.h>
39#include <asm/unaligned.h>
38 40
39static const u32 camellia_sp1110[256] = { 41static const u32 camellia_sp1110[256] = {
40 0x70707000,0x82828200,0x2c2c2c00,0xececec00, 42 0x70707000,0x82828200,0x2c2c2c00,0xececec00,
@@ -335,20 +337,6 @@ static const u32 camellia_sp4404[256] = {
335/* 337/*
336 * macros 338 * macros
337 */ 339 */
338#define GETU32(v, pt) \
339 do { \
340 /* latest breed of gcc is clever enough to use move */ \
341 memcpy(&(v), (pt), 4); \
342 (v) = be32_to_cpu(v); \
343 } while(0)
344
345/* rotation right shift 1byte */
346#define ROR8(x) (((x) >> 8) + ((x) << 24))
347/* rotation left shift 1bit */
348#define ROL1(x) (((x) << 1) + ((x) >> 31))
349/* rotation left shift 1byte */
350#define ROL8(x) (((x) << 8) + ((x) >> 24))
351
352#define ROLDQ(ll, lr, rl, rr, w0, w1, bits) \ 340#define ROLDQ(ll, lr, rl, rr, w0, w1, bits) \
353 do { \ 341 do { \
354 w0 = ll; \ 342 w0 = ll; \
@@ -383,7 +371,7 @@ static const u32 camellia_sp4404[256] = {
383 ^ camellia_sp3033[(u8)(il >> 8)] \ 371 ^ camellia_sp3033[(u8)(il >> 8)] \
384 ^ camellia_sp4404[(u8)(il )]; \ 372 ^ camellia_sp4404[(u8)(il )]; \
385 yl ^= yr; \ 373 yl ^= yr; \
386 yr = ROR8(yr); \ 374 yr = ror32(yr, 8); \
387 yr ^= yl; \ 375 yr ^= yl; \
388 } while(0) 376 } while(0)
389 377
@@ -405,7 +393,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
405 subL[7] ^= subL[1]; subR[7] ^= subR[1]; 393 subL[7] ^= subL[1]; subR[7] ^= subR[1];
406 subL[1] ^= subR[1] & ~subR[9]; 394 subL[1] ^= subR[1] & ~subR[9];
407 dw = subL[1] & subL[9], 395 dw = subL[1] & subL[9],
408 subR[1] ^= ROL1(dw); /* modified for FLinv(kl2) */ 396 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl2) */
409 /* round 8 */ 397 /* round 8 */
410 subL[11] ^= subL[1]; subR[11] ^= subR[1]; 398 subL[11] ^= subL[1]; subR[11] ^= subR[1];
411 /* round 10 */ 399 /* round 10 */
@@ -414,7 +402,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
414 subL[15] ^= subL[1]; subR[15] ^= subR[1]; 402 subL[15] ^= subL[1]; subR[15] ^= subR[1];
415 subL[1] ^= subR[1] & ~subR[17]; 403 subL[1] ^= subR[1] & ~subR[17];
416 dw = subL[1] & subL[17], 404 dw = subL[1] & subL[17],
417 subR[1] ^= ROL1(dw); /* modified for FLinv(kl4) */ 405 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl4) */
418 /* round 14 */ 406 /* round 14 */
419 subL[19] ^= subL[1]; subR[19] ^= subR[1]; 407 subL[19] ^= subL[1]; subR[19] ^= subR[1];
420 /* round 16 */ 408 /* round 16 */
@@ -430,7 +418,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
430 } else { 418 } else {
431 subL[1] ^= subR[1] & ~subR[25]; 419 subL[1] ^= subR[1] & ~subR[25];
432 dw = subL[1] & subL[25], 420 dw = subL[1] & subL[25],
433 subR[1] ^= ROL1(dw); /* modified for FLinv(kl6) */ 421 subR[1] ^= rol32(dw, 1); /* modified for FLinv(kl6) */
434 /* round 20 */ 422 /* round 20 */
435 subL[27] ^= subL[1]; subR[27] ^= subR[1]; 423 subL[27] ^= subL[1]; subR[27] ^= subR[1];
436 /* round 22 */ 424 /* round 22 */
@@ -450,7 +438,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
450 subL[26] ^= kw4l; subR[26] ^= kw4r; 438 subL[26] ^= kw4l; subR[26] ^= kw4r;
451 kw4l ^= kw4r & ~subR[24]; 439 kw4l ^= kw4r & ~subR[24];
452 dw = kw4l & subL[24], 440 dw = kw4l & subL[24],
453 kw4r ^= ROL1(dw); /* modified for FL(kl5) */ 441 kw4r ^= rol32(dw, 1); /* modified for FL(kl5) */
454 } 442 }
455 /* round 17 */ 443 /* round 17 */
456 subL[22] ^= kw4l; subR[22] ^= kw4r; 444 subL[22] ^= kw4l; subR[22] ^= kw4r;
@@ -460,7 +448,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
460 subL[18] ^= kw4l; subR[18] ^= kw4r; 448 subL[18] ^= kw4l; subR[18] ^= kw4r;
461 kw4l ^= kw4r & ~subR[16]; 449 kw4l ^= kw4r & ~subR[16];
462 dw = kw4l & subL[16], 450 dw = kw4l & subL[16],
463 kw4r ^= ROL1(dw); /* modified for FL(kl3) */ 451 kw4r ^= rol32(dw, 1); /* modified for FL(kl3) */
464 /* round 11 */ 452 /* round 11 */
465 subL[14] ^= kw4l; subR[14] ^= kw4r; 453 subL[14] ^= kw4l; subR[14] ^= kw4r;
466 /* round 9 */ 454 /* round 9 */
@@ -469,7 +457,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
469 subL[10] ^= kw4l; subR[10] ^= kw4r; 457 subL[10] ^= kw4l; subR[10] ^= kw4r;
470 kw4l ^= kw4r & ~subR[8]; 458 kw4l ^= kw4r & ~subR[8];
471 dw = kw4l & subL[8], 459 dw = kw4l & subL[8],
472 kw4r ^= ROL1(dw); /* modified for FL(kl1) */ 460 kw4r ^= rol32(dw, 1); /* modified for FL(kl1) */
473 /* round 5 */ 461 /* round 5 */
474 subL[6] ^= kw4l; subR[6] ^= kw4r; 462 subL[6] ^= kw4l; subR[6] ^= kw4r;
475 /* round 3 */ 463 /* round 3 */
@@ -494,7 +482,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
494 SUBKEY_R(6) = subR[5] ^ subR[7]; 482 SUBKEY_R(6) = subR[5] ^ subR[7];
495 tl = subL[10] ^ (subR[10] & ~subR[8]); 483 tl = subL[10] ^ (subR[10] & ~subR[8]);
496 dw = tl & subL[8], /* FL(kl1) */ 484 dw = tl & subL[8], /* FL(kl1) */
497 tr = subR[10] ^ ROL1(dw); 485 tr = subR[10] ^ rol32(dw, 1);
498 SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */ 486 SUBKEY_L(7) = subL[6] ^ tl; /* round 6 */
499 SUBKEY_R(7) = subR[6] ^ tr; 487 SUBKEY_R(7) = subR[6] ^ tr;
500 SUBKEY_L(8) = subL[8]; /* FL(kl1) */ 488 SUBKEY_L(8) = subL[8]; /* FL(kl1) */
@@ -503,7 +491,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
503 SUBKEY_R(9) = subR[9]; 491 SUBKEY_R(9) = subR[9];
504 tl = subL[7] ^ (subR[7] & ~subR[9]); 492 tl = subL[7] ^ (subR[7] & ~subR[9]);
505 dw = tl & subL[9], /* FLinv(kl2) */ 493 dw = tl & subL[9], /* FLinv(kl2) */
506 tr = subR[7] ^ ROL1(dw); 494 tr = subR[7] ^ rol32(dw, 1);
507 SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */ 495 SUBKEY_L(10) = tl ^ subL[11]; /* round 7 */
508 SUBKEY_R(10) = tr ^ subR[11]; 496 SUBKEY_R(10) = tr ^ subR[11];
509 SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */ 497 SUBKEY_L(11) = subL[10] ^ subL[12]; /* round 8 */
@@ -516,7 +504,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
516 SUBKEY_R(14) = subR[13] ^ subR[15]; 504 SUBKEY_R(14) = subR[13] ^ subR[15];
517 tl = subL[18] ^ (subR[18] & ~subR[16]); 505 tl = subL[18] ^ (subR[18] & ~subR[16]);
518 dw = tl & subL[16], /* FL(kl3) */ 506 dw = tl & subL[16], /* FL(kl3) */
519 tr = subR[18] ^ ROL1(dw); 507 tr = subR[18] ^ rol32(dw, 1);
520 SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */ 508 SUBKEY_L(15) = subL[14] ^ tl; /* round 12 */
521 SUBKEY_R(15) = subR[14] ^ tr; 509 SUBKEY_R(15) = subR[14] ^ tr;
522 SUBKEY_L(16) = subL[16]; /* FL(kl3) */ 510 SUBKEY_L(16) = subL[16]; /* FL(kl3) */
@@ -525,7 +513,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
525 SUBKEY_R(17) = subR[17]; 513 SUBKEY_R(17) = subR[17];
526 tl = subL[15] ^ (subR[15] & ~subR[17]); 514 tl = subL[15] ^ (subR[15] & ~subR[17]);
527 dw = tl & subL[17], /* FLinv(kl4) */ 515 dw = tl & subL[17], /* FLinv(kl4) */
528 tr = subR[15] ^ ROL1(dw); 516 tr = subR[15] ^ rol32(dw, 1);
529 SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */ 517 SUBKEY_L(18) = tl ^ subL[19]; /* round 13 */
530 SUBKEY_R(18) = tr ^ subR[19]; 518 SUBKEY_R(18) = tr ^ subR[19];
531 SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */ 519 SUBKEY_L(19) = subL[18] ^ subL[20]; /* round 14 */
@@ -544,7 +532,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
544 } else { 532 } else {
545 tl = subL[26] ^ (subR[26] & ~subR[24]); 533 tl = subL[26] ^ (subR[26] & ~subR[24]);
546 dw = tl & subL[24], /* FL(kl5) */ 534 dw = tl & subL[24], /* FL(kl5) */
547 tr = subR[26] ^ ROL1(dw); 535 tr = subR[26] ^ rol32(dw, 1);
548 SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */ 536 SUBKEY_L(23) = subL[22] ^ tl; /* round 18 */
549 SUBKEY_R(23) = subR[22] ^ tr; 537 SUBKEY_R(23) = subR[22] ^ tr;
550 SUBKEY_L(24) = subL[24]; /* FL(kl5) */ 538 SUBKEY_L(24) = subL[24]; /* FL(kl5) */
@@ -553,7 +541,7 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
553 SUBKEY_R(25) = subR[25]; 541 SUBKEY_R(25) = subR[25];
554 tl = subL[23] ^ (subR[23] & ~subR[25]); 542 tl = subL[23] ^ (subR[23] & ~subR[25]);
555 dw = tl & subL[25], /* FLinv(kl6) */ 543 dw = tl & subL[25], /* FLinv(kl6) */
556 tr = subR[23] ^ ROL1(dw); 544 tr = subR[23] ^ rol32(dw, 1);
557 SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */ 545 SUBKEY_L(26) = tl ^ subL[27]; /* round 19 */
558 SUBKEY_R(26) = tr ^ subR[27]; 546 SUBKEY_R(26) = tr ^ subR[27];
559 SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */ 547 SUBKEY_L(27) = subL[26] ^ subL[28]; /* round 20 */
@@ -573,17 +561,17 @@ static void camellia_setup_tail(u32 *subkey, u32 *subL, u32 *subR, int max)
573 /* apply the inverse of the last half of P-function */ 561 /* apply the inverse of the last half of P-function */
574 i = 2; 562 i = 2;
575 do { 563 do {
576 dw = SUBKEY_L(i + 0) ^ SUBKEY_R(i + 0); dw = ROL8(dw);/* round 1 */ 564 dw = SUBKEY_L(i + 0) ^ SUBKEY_R(i + 0); dw = rol32(dw, 8);/* round 1 */
577 SUBKEY_R(i + 0) = SUBKEY_L(i + 0) ^ dw; SUBKEY_L(i + 0) = dw; 565 SUBKEY_R(i + 0) = SUBKEY_L(i + 0) ^ dw; SUBKEY_L(i + 0) = dw;
578 dw = SUBKEY_L(i + 1) ^ SUBKEY_R(i + 1); dw = ROL8(dw);/* round 2 */ 566 dw = SUBKEY_L(i + 1) ^ SUBKEY_R(i + 1); dw = rol32(dw, 8);/* round 2 */
579 SUBKEY_R(i + 1) = SUBKEY_L(i + 1) ^ dw; SUBKEY_L(i + 1) = dw; 567 SUBKEY_R(i + 1) = SUBKEY_L(i + 1) ^ dw; SUBKEY_L(i + 1) = dw;
580 dw = SUBKEY_L(i + 2) ^ SUBKEY_R(i + 2); dw = ROL8(dw);/* round 3 */ 568 dw = SUBKEY_L(i + 2) ^ SUBKEY_R(i + 2); dw = rol32(dw, 8);/* round 3 */
581 SUBKEY_R(i + 2) = SUBKEY_L(i + 2) ^ dw; SUBKEY_L(i + 2) = dw; 569 SUBKEY_R(i + 2) = SUBKEY_L(i + 2) ^ dw; SUBKEY_L(i + 2) = dw;
582 dw = SUBKEY_L(i + 3) ^ SUBKEY_R(i + 3); dw = ROL8(dw);/* round 4 */ 570 dw = SUBKEY_L(i + 3) ^ SUBKEY_R(i + 3); dw = rol32(dw, 8);/* round 4 */
583 SUBKEY_R(i + 3) = SUBKEY_L(i + 3) ^ dw; SUBKEY_L(i + 3) = dw; 571 SUBKEY_R(i + 3) = SUBKEY_L(i + 3) ^ dw; SUBKEY_L(i + 3) = dw;
584 dw = SUBKEY_L(i + 4) ^ SUBKEY_R(i + 4); dw = ROL8(dw);/* round 5 */ 572 dw = SUBKEY_L(i + 4) ^ SUBKEY_R(i + 4); dw = rol32(dw, 9);/* round 5 */
585 SUBKEY_R(i + 4) = SUBKEY_L(i + 4) ^ dw; SUBKEY_L(i + 4) = dw; 573 SUBKEY_R(i + 4) = SUBKEY_L(i + 4) ^ dw; SUBKEY_L(i + 4) = dw;
586 dw = SUBKEY_L(i + 5) ^ SUBKEY_R(i + 5); dw = ROL8(dw);/* round 6 */ 574 dw = SUBKEY_L(i + 5) ^ SUBKEY_R(i + 5); dw = rol32(dw, 8);/* round 6 */
587 SUBKEY_R(i + 5) = SUBKEY_L(i + 5) ^ dw; SUBKEY_L(i + 5) = dw; 575 SUBKEY_R(i + 5) = SUBKEY_L(i + 5) ^ dw; SUBKEY_L(i + 5) = dw;
588 i += 8; 576 i += 8;
589 } while (i < max); 577 } while (i < max);
@@ -599,10 +587,10 @@ static void camellia_setup128(const unsigned char *key, u32 *subkey)
599 /** 587 /**
600 * k == kll || klr || krl || krr (|| is concatenation) 588 * k == kll || klr || krl || krr (|| is concatenation)
601 */ 589 */
602 GETU32(kll, key ); 590 kll = get_unaligned_be32(key);
603 GETU32(klr, key + 4); 591 klr = get_unaligned_be32(key + 4);
604 GETU32(krl, key + 8); 592 krl = get_unaligned_be32(key + 8);
605 GETU32(krr, key + 12); 593 krr = get_unaligned_be32(key + 12);
606 594
607 /* generate KL dependent subkeys */ 595 /* generate KL dependent subkeys */
608 /* kw1 */ 596 /* kw1 */
@@ -707,14 +695,14 @@ static void camellia_setup256(const unsigned char *key, u32 *subkey)
707 * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr) 695 * key = (kll || klr || krl || krr || krll || krlr || krrl || krrr)
708 * (|| is concatenation) 696 * (|| is concatenation)
709 */ 697 */
710 GETU32(kll, key ); 698 kll = get_unaligned_be32(key);
711 GETU32(klr, key + 4); 699 klr = get_unaligned_be32(key + 4);
712 GETU32(krl, key + 8); 700 krl = get_unaligned_be32(key + 8);
713 GETU32(krr, key + 12); 701 krr = get_unaligned_be32(key + 12);
714 GETU32(krll, key + 16); 702 krll = get_unaligned_be32(key + 16);
715 GETU32(krlr, key + 20); 703 krlr = get_unaligned_be32(key + 20);
716 GETU32(krrl, key + 24); 704 krrl = get_unaligned_be32(key + 24);
717 GETU32(krrr, key + 28); 705 krrr = get_unaligned_be32(key + 28);
718 706
719 /* generate KL dependent subkeys */ 707 /* generate KL dependent subkeys */
720 /* kw1 */ 708 /* kw1 */
@@ -870,13 +858,13 @@ static void camellia_setup192(const unsigned char *key, u32 *subkey)
870 t0 &= ll; \ 858 t0 &= ll; \
871 t2 |= rr; \ 859 t2 |= rr; \
872 rl ^= t2; \ 860 rl ^= t2; \
873 lr ^= ROL1(t0); \ 861 lr ^= rol32(t0, 1); \
874 t3 = krl; \ 862 t3 = krl; \
875 t1 = klr; \ 863 t1 = klr; \
876 t3 &= rl; \ 864 t3 &= rl; \
877 t1 |= lr; \ 865 t1 |= lr; \
878 ll ^= t1; \ 866 ll ^= t1; \
879 rr ^= ROL1(t3); \ 867 rr ^= rol32(t3, 1); \
880 } while(0) 868 } while(0)
881 869
882#define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) \ 870#define CAMELLIA_ROUNDSM(xl, xr, kl, kr, yl, yr, il, ir) \
@@ -892,7 +880,7 @@ static void camellia_setup192(const unsigned char *key, u32 *subkey)
892 il ^= kl; \ 880 il ^= kl; \
893 ir ^= il ^ kr; \ 881 ir ^= il ^ kr; \
894 yl ^= ir; \ 882 yl ^= ir; \
895 yr ^= ROR8(il) ^ ir; \ 883 yr ^= ror32(il, 8) ^ ir; \
896 } while(0) 884 } while(0)
897 885
898/* max = 24: 128bit encrypt, max = 32: 256bit encrypt */ 886/* max = 24: 128bit encrypt, max = 32: 256bit encrypt */
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 05:48:24 -0500