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105 lines
3.4 KiB
105 lines
3.4 KiB
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/* |
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* skein256 kernel implementation. |
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* |
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* ==========================(LICENSE BEGIN)============================ |
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* Copyright (c) 2014 djm34 |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining |
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* a copy of this software and associated documentation files (the |
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* "Software"), to deal in the Software without restriction, including |
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* without limitation the rights to use, copy, modify, merge, publish, |
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* distribute, sublicense, and/or sell copies of the Software, and to |
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* permit persons to whom the Software is furnished to do so, subject to |
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* the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be |
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* included in all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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* |
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* ===========================(LICENSE END)============================= |
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* |
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* @author djm34 |
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*/ |
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__constant static const sph_u64 SKEIN_IV512[] = { |
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SPH_C64(0x4903ADFF749C51CE), SPH_C64(0x0D95DE399746DF03), |
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SPH_C64(0x8FD1934127C79BCE), SPH_C64(0x9A255629FF352CB1), |
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SPH_C64(0x5DB62599DF6CA7B0), SPH_C64(0xEABE394CA9D5C3F4), |
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SPH_C64(0x991112C71A75B523), SPH_C64(0xAE18A40B660FCC33) |
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}; |
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__constant static const sph_u64 SKEIN_IV512_256[8] = { |
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0xCCD044A12FDB3E13UL, 0xE83590301A79A9EBUL, |
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0x55AEA0614F816E6FUL, 0x2A2767A4AE9B94DBUL, |
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0xEC06025E74DD7683UL, 0xE7A436CDC4746251UL, |
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0xC36FBAF9393AD185UL, 0x3EEDBA1833EDFC13UL |
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}; |
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__constant static const int ROT256[8][4] = |
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{ |
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46, 36, 19, 37, |
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33, 27, 14, 42, |
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17, 49, 36, 39, |
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44, 9, 54, 56, |
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39, 30, 34, 24, |
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13, 50, 10, 17, |
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25, 29, 39, 43, |
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8, 35, 56, 22, |
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}; |
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__constant static const sph_u64 skein_ks_parity = 0x1BD11BDAA9FC1A22; |
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__constant static const sph_u64 t12[6] = |
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{ 0x20UL, |
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0xf000000000000000UL, |
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0xf000000000000020UL, |
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0x08UL, |
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0xff00000000000000UL, |
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0xff00000000000008UL |
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}; |
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#define Round512(p0,p1,p2,p3,p4,p5,p6,p7,ROT) { \ |
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p0 += p1; p1 = SPH_ROTL64(p1, ROT256[ROT][0]); p1 ^= p0; \ |
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p2 += p3; p3 = SPH_ROTL64(p3, ROT256[ROT][1]); p3 ^= p2; \ |
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p4 += p5; p5 = SPH_ROTL64(p5, ROT256[ROT][2]); p5 ^= p4; \ |
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p6 += p7; p7 = SPH_ROTL64(p7, ROT256[ROT][3]); p7 ^= p6; \ |
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} |
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#define Round_8_512(p0, p1, p2, p3, p4, p5, p6, p7, R) { \ |
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Round512(p0, p1, p2, p3, p4, p5, p6, p7, 0); \ |
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Round512(p2, p1, p4, p7, p6, p5, p0, p3, 1); \ |
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Round512(p4, p1, p6, p3, p0, p5, p2, p7, 2); \ |
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Round512(p6, p1, p0, p7, p2, p5, p4, p3, 3); \ |
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p0 += h[((R)+0) % 9]; \ |
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p1 += h[((R)+1) % 9]; \ |
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p2 += h[((R)+2) % 9]; \ |
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p3 += h[((R)+3) % 9]; \ |
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p4 += h[((R)+4) % 9]; \ |
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p5 += h[((R)+5) % 9] + t[((R)+0) % 3]; \ |
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p6 += h[((R)+6) % 9] + t[((R)+1) % 3]; \ |
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p7 += h[((R)+7) % 9] + R; \ |
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Round512(p0, p1, p2, p3, p4, p5, p6, p7, 4); \ |
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Round512(p2, p1, p4, p7, p6, p5, p0, p3, 5); \ |
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Round512(p4, p1, p6, p3, p0, p5, p2, p7, 6); \ |
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Round512(p6, p1, p0, p7, p2, p5, p4, p3, 7); \ |
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p0 += h[((R)+1) % 9]; \ |
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p1 += h[((R)+2) % 9]; \ |
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p2 += h[((R)+3) % 9]; \ |
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p3 += h[((R)+4) % 9]; \ |
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p4 += h[((R)+5) % 9]; \ |
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p5 += h[((R)+6) % 9] + t[((R)+1) % 3]; \ |
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p6 += h[((R)+7) % 9] + t[((R)+2) % 3]; \ |
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p7 += h[((R)+8) % 9] + (R+1); \ |
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} |