| 49 | bb = b; |
| 50 | cc = c; |
| 51 | loop(pass_no, TIGER_PASSES) |
| 52 | { |
| 53 | if(pass_no) |
| 54 | { |
| 55 | x0 -= x7 ^ 0xA5A5A5A5A5A5A5A5ULL; x1 ^= x0; x2 += x1; x3 -= x2 ^ ((~x1)<<19); |
| 56 | x4 ^= x3; x5 += x4; x6 -= x5 ^ ((~x4)>>23); x7 ^= x6; |
| 57 | x0 += x7; x1 -= x0 ^ ((~x7)<<19); x2 ^= x1; x3 += x2; |
| 58 | x4 -= x3 ^ ((~x2)>>23); x5 ^= x4; x6 += x5; x7 -= x6 ^ 0x0123456789ABCDEFULL; |
| 59 | } |
| 60 | |
| 61 | #define sb1 (sboxes) |
| 62 | #define sb2 (sboxes+256) |
| 63 | #define sb3 (sboxes+256*2) |
| 64 | #define sb4 (sboxes+256*3) |
| 65 | |
| 66 | #define tround(a, b, c, x) \ |
| 67 | c ^= x; \ |
| 68 | a -= sb1[((c)>>(0*8))&0xFF] ^ sb2[((c)>>(2*8))&0xFF] ^ \ |
| 69 | sb3[((c)>>(4*8))&0xFF] ^ sb4[((c)>>(6*8))&0xFF] ; \ |
| 70 | b += sb4[((c)>>(1*8))&0xFF] ^ sb3[((c)>>(3*8))&0xFF] ^ \ |
| 71 | sb2[((c)>>(5*8))&0xFF] ^ sb1[((c)>>(7*8))&0xFF] ; \ |
| 72 | b *= mul; |
| 73 | |
| 74 | uint mul = !pass_no ? 5 : (pass_no==1 ? 7 : 9); |
| 75 | tround(a, b, c, x0) tround(b, c, a, x1) tround(c, a, b, x2) tround(a, b, c, x3) |
| 76 | tround(b, c, a, x4) tround(c, a, b, x5) tround(a, b, c, x6) tround(b, c, a, x7) |
| 77 | |
| 78 | chunk tmp = a; a = c; c = b; b = tmp; |
| 79 | } |
| 80 | |
| 81 | a ^= aa; |
| 82 | b -= bb; |