/* $Id: shabal.c 175 2010-05-07 16:03:20Z tp $ */ /* * Shabal implementation. * * ==========================(LICENSE BEGIN)============================ * * Copyright (c) 2007-2010 Projet RNRT SAPHIR * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * ===========================(LICENSE END)============================= * * @author Thomas Pornin */ #include #include #include "sph_shabal.h" #ifdef __cplusplus extern "C"{ #endif #ifdef _MSC_VER #pragma warning (disable: 4146) #endif /* * Part of this code was automatically generated (the part between * the "BEGIN" and "END" markers). */ #define sM 16 #define C32 SPH_C32 #define T32 SPH_T32 #define O1 13 #define O2 9 #define O3 6 /* * We copy the state into local variables, so that the compiler knows * that it can optimize them at will. */ /* BEGIN -- automatically generated code. */ #define DECL_STATE \ sph_u32 A00, A01, A02, A03, A04, A05, A06, A07, \ A08, A09, A0A, A0B; \ sph_u32 B0, B1, B2, B3, B4, B5, B6, B7, \ B8, B9, BA, BB, BC, BD, BE, BF; \ sph_u32 C0, C1, C2, C3, C4, C5, C6, C7, \ C8, C9, CA, CB, CC, CD, CE, CF; \ sph_u32 M0, M1, M2, M3, M4, M5, M6, M7, \ M8, M9, MA, MB, MC, MD, ME, MF; \ sph_u32 Wlow, Whigh; #define READ_STATE(state) do { \ A00 = (state)->A[0]; \ A01 = (state)->A[1]; \ A02 = (state)->A[2]; \ A03 = (state)->A[3]; \ A04 = (state)->A[4]; \ A05 = (state)->A[5]; \ A06 = (state)->A[6]; \ A07 = (state)->A[7]; \ A08 = (state)->A[8]; \ A09 = (state)->A[9]; \ A0A = (state)->A[10]; \ A0B = (state)->A[11]; \ B0 = (state)->B[0]; \ B1 = (state)->B[1]; \ B2 = (state)->B[2]; \ B3 = (state)->B[3]; \ B4 = (state)->B[4]; \ B5 = (state)->B[5]; \ B6 = (state)->B[6]; \ B7 = (state)->B[7]; \ B8 = (state)->B[8]; \ B9 = (state)->B[9]; \ BA = (state)->B[10]; \ BB = (state)->B[11]; \ BC = (state)->B[12]; \ BD = (state)->B[13]; \ BE = (state)->B[14]; \ BF = (state)->B[15]; \ C0 = (state)->C[0]; \ C1 = (state)->C[1]; \ C2 = (state)->C[2]; \ C3 = (state)->C[3]; \ C4 = (state)->C[4]; \ C5 = (state)->C[5]; \ C6 = (state)->C[6]; \ C7 = (state)->C[7]; \ C8 = (state)->C[8]; \ C9 = (state)->C[9]; \ CA = (state)->C[10]; \ CB = (state)->C[11]; \ CC = (state)->C[12]; \ CD = (state)->C[13]; \ CE = (state)->C[14]; \ CF = (state)->C[15]; \ Wlow = (state)->Wlow; \ Whigh = (state)->Whigh; \ } while (0) #define WRITE_STATE(state) do { \ (state)->A[0] = A00; \ (state)->A[1] = A01; \ (state)->A[2] = A02; \ (state)->A[3] = A03; \ (state)->A[4] = A04; \ (state)->A[5] = A05; \ (state)->A[6] = A06; \ (state)->A[7] = A07; \ (state)->A[8] = A08; \ (state)->A[9] = A09; \ (state)->A[10] = A0A; \ (state)->A[11] = A0B; \ (state)->B[0] = B0; \ (state)->B[1] = B1; \ (state)->B[2] = B2; \ (state)->B[3] = B3; \ (state)->B[4] = B4; \ (state)->B[5] = B5; \ (state)->B[6] = B6; \ (state)->B[7] = B7; \ (state)->B[8] = B8; \ (state)->B[9] = B9; \ (state)->B[10] = BA; \ (state)->B[11] = BB; \ (state)->B[12] = BC; \ (state)->B[13] = BD; \ (state)->B[14] = BE; \ (state)->B[15] = BF; \ (state)->C[0] = C0; \ (state)->C[1] = C1; \ (state)->C[2] = C2; \ (state)->C[3] = C3; \ (state)->C[4] = C4; \ (state)->C[5] = C5; \ (state)->C[6] = C6; \ (state)->C[7] = C7; \ (state)->C[8] = C8; \ (state)->C[9] = C9; \ (state)->C[10] = CA; \ (state)->C[11] = CB; \ (state)->C[12] = CC; \ (state)->C[13] = CD; \ (state)->C[14] = CE; \ (state)->C[15] = CF; \ (state)->Wlow = Wlow; \ (state)->Whigh = Whigh; \ } while (0) #define DECODE_BLOCK do { \ M0 = sph_dec32le_aligned(buf + 0); \ M1 = sph_dec32le_aligned(buf + 4); \ M2 = sph_dec32le_aligned(buf + 8); \ M3 = sph_dec32le_aligned(buf + 12); \ M4 = sph_dec32le_aligned(buf + 16); \ M5 = sph_dec32le_aligned(buf + 20); \ M6 = sph_dec32le_aligned(buf + 24); \ M7 = sph_dec32le_aligned(buf + 28); \ M8 = sph_dec32le_aligned(buf + 32); \ M9 = sph_dec32le_aligned(buf + 36); \ MA = sph_dec32le_aligned(buf + 40); \ MB = sph_dec32le_aligned(buf + 44); \ MC = sph_dec32le_aligned(buf + 48); \ MD = sph_dec32le_aligned(buf + 52); \ ME = sph_dec32le_aligned(buf + 56); \ MF = sph_dec32le_aligned(buf + 60); \ } while (0) #define INPUT_BLOCK_ADD do { \ B0 = T32(B0 + M0); \ B1 = T32(B1 + M1); \ B2 = T32(B2 + M2); \ B3 = T32(B3 + M3); \ B4 = T32(B4 + M4); \ B5 = T32(B5 + M5); \ B6 = T32(B6 + M6); \ B7 = T32(B7 + M7); \ B8 = T32(B8 + M8); \ B9 = T32(B9 + M9); \ BA = T32(BA + MA); \ BB = T32(BB + MB); \ BC = T32(BC + MC); \ BD = T32(BD + MD); \ BE = T32(BE + ME); \ BF = T32(BF + MF); \ } while (0) #define INPUT_BLOCK_SUB do { \ C0 = T32(C0 - M0); \ C1 = T32(C1 - M1); \ C2 = T32(C2 - M2); \ C3 = T32(C3 - M3); \ C4 = T32(C4 - M4); \ C5 = T32(C5 - M5); \ C6 = T32(C6 - M6); \ C7 = T32(C7 - M7); \ C8 = T32(C8 - M8); \ C9 = T32(C9 - M9); \ CA = T32(CA - MA); \ CB = T32(CB - MB); \ CC = T32(CC - MC); \ CD = T32(CD - MD); \ CE = T32(CE - ME); \ CF = T32(CF - MF); \ } while (0) #define XOR_W do { \ A00 ^= Wlow; \ A01 ^= Whigh; \ } while (0) #define SWAP(v1, v2) do { \ sph_u32 tmp = (v1); \ (v1) = (v2); \ (v2) = tmp; \ } while (0) #define SWAP_BC do { \ SWAP(B0, C0); \ SWAP(B1, C1); \ SWAP(B2, C2); \ SWAP(B3, C3); \ SWAP(B4, C4); \ SWAP(B5, C5); \ SWAP(B6, C6); \ SWAP(B7, C7); \ SWAP(B8, C8); \ SWAP(B9, C9); \ SWAP(BA, CA); \ SWAP(BB, CB); \ SWAP(BC, CC); \ SWAP(BD, CD); \ SWAP(BE, CE); \ SWAP(BF, CF); \ } while (0) #define PERM_ELT(xa0, xa1, xb0, xb1, xb2, xb3, xc, xm) do { \ xa0 = T32((xa0 \ ^ (((xa1 << 15) | (xa1 >> 17)) * 5U) \ ^ xc) * 3U) \ ^ xb1 ^ (xb2 & ~xb3) ^ xm; \ xb0 = T32(~(((xb0 << 1) | (xb0 >> 31)) ^ xa0)); \ } while (0) #define PERM_STEP_0 do { \ PERM_ELT(A00, A0B, B0, BD, B9, B6, C8, M0); \ PERM_ELT(A01, A00, B1, BE, BA, B7, C7, M1); \ PERM_ELT(A02, A01, B2, BF, BB, B8, C6, M2); \ PERM_ELT(A03, A02, B3, B0, BC, B9, C5, M3); \ PERM_ELT(A04, A03, B4, B1, BD, BA, C4, M4); \ PERM_ELT(A05, A04, B5, B2, BE, BB, C3, M5); \ PERM_ELT(A06, A05, B6, B3, BF, BC, C2, M6); \ PERM_ELT(A07, A06, B7, B4, B0, BD, C1, M7); \ PERM_ELT(A08, A07, B8, B5, B1, BE, C0, M8); \ PERM_ELT(A09, A08, B9, B6, B2, BF, CF, M9); \ PERM_ELT(A0A, A09, BA, B7, B3, B0, CE, MA); \ PERM_ELT(A0B, A0A, BB, B8, B4, B1, CD, MB); \ PERM_ELT(A00, A0B, BC, B9, B5, B2, CC, MC); \ PERM_ELT(A01, A00, BD, BA, B6, B3, CB, MD); \ PERM_ELT(A02, A01, BE, BB, B7, B4, CA, ME); \ PERM_ELT(A03, A02, BF, BC, B8, B5, C9, MF); \ } while (0) #define PERM_STEP_1 do { \ PERM_ELT(A04, A03, B0, BD, B9, B6, C8, M0); \ PERM_ELT(A05, A04, B1, BE, BA, B7, C7, M1); \ PERM_ELT(A06, A05, B2, BF, BB, B8, C6, M2); \ PERM_ELT(A07, A06, B3, B0, BC, B9, C5, M3); \ PERM_ELT(A08, A07, B4, B1, BD, BA, C4, M4); \ PERM_ELT(A09, A08, B5, B2, BE, BB, C3, M5); \ PERM_ELT(A0A, A09, B6, B3, BF, BC, C2, M6); \ PERM_ELT(A0B, A0A, B7, B4, B0, BD, C1, M7); \ PERM_ELT(A00, A0B, B8, B5, B1, BE, C0, M8); \ PERM_ELT(A01, A00, B9, B6, B2, BF, CF, M9); \ PERM_ELT(A02, A01, BA, B7, B3, B0, CE, MA); \ PERM_ELT(A03, A02, BB, B8, B4, B1, CD, MB); \ PERM_ELT(A04, A03, BC, B9, B5, B2, CC, MC); \ PERM_ELT(A05, A04, BD, BA, B6, B3, CB, MD); \ PERM_ELT(A06, A05, BE, BB, B7, B4, CA, ME); \ PERM_ELT(A07, A06, BF, BC, B8, B5, C9, MF); \ } while (0) #define PERM_STEP_2 do { \ PERM_ELT(A08, A07, B0, BD, B9, B6, C8, M0); \ PERM_ELT(A09, A08, B1, BE, BA, B7, C7, M1); \ PERM_ELT(A0A, A09, B2, BF, BB, B8, C6, M2); \ PERM_ELT(A0B, A0A, B3, B0, BC, B9, C5, M3); \ PERM_ELT(A00, A0B, B4, B1, BD, BA, C4, M4); \ PERM_ELT(A01, A00, B5, B2, BE, BB, C3, M5); \ PERM_ELT(A02, A01, B6, B3, BF, BC, C2, M6); \ PERM_ELT(A03, A02, B7, B4, B0, BD, C1, M7); \ PERM_ELT(A04, A03, B8, B5, B1, BE, C0, M8); \ PERM_ELT(A05, A04, B9, B6, B2, BF, CF, M9); \ PERM_ELT(A06, A05, BA, B7, B3, B0, CE, MA); \ PERM_ELT(A07, A06, BB, B8, B4, B1, CD, MB); \ PERM_ELT(A08, A07, BC, B9, B5, B2, CC, MC); \ PERM_ELT(A09, A08, BD, BA, B6, B3, CB, MD); \ PERM_ELT(A0A, A09, BE, BB, B7, B4, CA, ME); \ PERM_ELT(A0B, A0A, BF, BC, B8, B5, C9, MF); \ } while (0) #define APPLY_P do { \ B0 = T32(B0 << 17) | (B0 >> 15); \ B1 = T32(B1 << 17) | (B1 >> 15); \ B2 = T32(B2 << 17) | (B2 >> 15); \ B3 = T32(B3 << 17) | (B3 >> 15); \ B4 = T32(B4 << 17) | (B4 >> 15); \ B5 = T32(B5 << 17) | (B5 >> 15); \ B6 = T32(B6 << 17) | (B6 >> 15); \ B7 = T32(B7 << 17) | (B7 >> 15); \ B8 = T32(B8 << 17) | (B8 >> 15); \ B9 = T32(B9 << 17) | (B9 >> 15); \ BA = T32(BA << 17) | (BA >> 15); \ BB = T32(BB << 17) | (BB >> 15); \ BC = T32(BC << 17) | (BC >> 15); \ BD = T32(BD << 17) | (BD >> 15); \ BE = T32(BE << 17) | (BE >> 15); \ BF = T32(BF << 17) | (BF >> 15); \ PERM_STEP_0; \ PERM_STEP_1; \ PERM_STEP_2; \ A0B = T32(A0B + C6); \ A0A = T32(A0A + C5); \ A09 = T32(A09 + C4); \ A08 = T32(A08 + C3); \ A07 = T32(A07 + C2); \ A06 = T32(A06 + C1); \ A05 = T32(A05 + C0); \ A04 = T32(A04 + CF); \ A03 = T32(A03 + CE); \ A02 = T32(A02 + CD); \ A01 = T32(A01 + CC); \ A00 = T32(A00 + CB); \ A0B = T32(A0B + CA); \ A0A = T32(A0A + C9); \ A09 = T32(A09 + C8); \ A08 = T32(A08 + C7); \ A07 = T32(A07 + C6); \ A06 = T32(A06 + C5); \ A05 = T32(A05 + C4); \ A04 = T32(A04 + C3); \ A03 = T32(A03 + C2); \ A02 = T32(A02 + C1); \ A01 = T32(A01 + C0); \ A00 = T32(A00 + CF); \ A0B = T32(A0B + CE); \ A0A = T32(A0A + CD); \ A09 = T32(A09 + CC); \ A08 = T32(A08 + CB); \ A07 = T32(A07 + CA); \ A06 = T32(A06 + C9); \ A05 = T32(A05 + C8); \ A04 = T32(A04 + C7); \ A03 = T32(A03 + C6); \ A02 = T32(A02 + C5); \ A01 = T32(A01 + C4); \ A00 = T32(A00 + C3); \ } while (0) #define INCR_W do { \ if ((Wlow = T32(Wlow + 1)) == 0) \ Whigh = T32(Whigh + 1); \ } while (0) static const sph_u32 A_init_192[] = { C32(0xFD749ED4), C32(0xB798E530), C32(0x33904B6F), C32(0x46BDA85E), C32(0x076934B4), C32(0x454B4058), C32(0x77F74527), C32(0xFB4CF465), C32(0x62931DA9), C32(0xE778C8DB), C32(0x22B3998E), C32(0xAC15CFB9) }; static const sph_u32 B_init_192[] = { C32(0x58BCBAC4), C32(0xEC47A08E), C32(0xAEE933B2), C32(0xDFCBC824), C32(0xA7944804), C32(0xBF65BDB0), C32(0x5A9D4502), C32(0x59979AF7), C32(0xC5CEA54E), C32(0x4B6B8150), C32(0x16E71909), C32(0x7D632319), C32(0x930573A0), C32(0xF34C63D1), C32(0xCAF914B4), C32(0xFDD6612C) }; static const sph_u32 C_init_192[] = { C32(0x61550878), C32(0x89EF2B75), C32(0xA1660C46), C32(0x7EF3855B), C32(0x7297B58C), C32(0x1BC67793), C32(0x7FB1C723), C32(0xB66FC640), C32(0x1A48B71C), C32(0xF0976D17), C32(0x088CE80A), C32(0xA454EDF3), C32(0x1C096BF4), C32(0xAC76224B), C32(0x5215781C), C32(0xCD5D2669) }; static const sph_u32 A_init_224[] = { C32(0xA5201467), C32(0xA9B8D94A), C32(0xD4CED997), C32(0x68379D7B), C32(0xA7FC73BA), C32(0xF1A2546B), C32(0x606782BF), C32(0xE0BCFD0F), C32(0x2F25374E), C32(0x069A149F), C32(0x5E2DFF25), C32(0xFAECF061) }; static const sph_u32 B_init_224[] = { C32(0xEC9905D8), C32(0xF21850CF), C32(0xC0A746C8), C32(0x21DAD498), C32(0x35156EEB), C32(0x088C97F2), C32(0x26303E40), C32(0x8A2D4FB5), C32(0xFEEE44B6), C32(0x8A1E9573), C32(0x7B81111A), C32(0xCBC139F0), C32(0xA3513861), C32(0x1D2C362E), C32(0x918C580E), C32(0xB58E1B9C) }; static const sph_u32 C_init_224[] = { C32(0xE4B573A1), C32(0x4C1A0880), C32(0x1E907C51), C32(0x04807EFD), C32(0x3AD8CDE5), C32(0x16B21302), C32(0x02512C53), C32(0x2204CB18), C32(0x99405F2D), C32(0xE5B648A1), C32(0x70AB1D43), C32(0xA10C25C2), C32(0x16F1AC05), C32(0x38BBEB56), C32(0x9B01DC60), C32(0xB1096D83) }; static const sph_u32 A_init_256[] = { C32(0x52F84552), C32(0xE54B7999), C32(0x2D8EE3EC), C32(0xB9645191), C32(0xE0078B86), C32(0xBB7C44C9), C32(0xD2B5C1CA), C32(0xB0D2EB8C), C32(0x14CE5A45), C32(0x22AF50DC), C32(0xEFFDBC6B), C32(0xEB21B74A) }; static const sph_u32 B_init_256[] = { C32(0xB555C6EE), C32(0x3E710596), C32(0xA72A652F), C32(0x9301515F), C32(0xDA28C1FA), C32(0x696FD868), C32(0x9CB6BF72), C32(0x0AFE4002), C32(0xA6E03615), C32(0x5138C1D4), C32(0xBE216306), C32(0xB38B8890), C32(0x3EA8B96B), C32(0x3299ACE4), C32(0x30924DD4), C32(0x55CB34A5) }; static const sph_u32 C_init_256[] = { C32(0xB405F031), C32(0xC4233EBA), C32(0xB3733979), C32(0xC0DD9D55), C32(0xC51C28AE), C32(0xA327B8E1), C32(0x56C56167), C32(0xED614433), C32(0x88B59D60), C32(0x60E2CEBA), C32(0x758B4B8B), C32(0x83E82A7F), C32(0xBC968828), C32(0xE6E00BF7), C32(0xBA839E55), C32(0x9B491C60) }; static const sph_u32 A_init_384[] = { C32(0xC8FCA331), C32(0xE55C504E), C32(0x003EBF26), C32(0xBB6B8D83), C32(0x7B0448C1), C32(0x41B82789), C32(0x0A7C9601), C32(0x8D659CFF), C32(0xB6E2673E), C32(0xCA54C77B), C32(0x1460FD7E), C32(0x3FCB8F2D) }; static const sph_u32 B_init_384[] = { C32(0x527291FC), C32(0x2A16455F), C32(0x78E627E5), C32(0x944F169F), C32(0x1CA6F016), C32(0xA854EA25), C32(0x8DB98ABE), C32(0xF2C62641), C32(0x30117DCB), C32(0xCF5C4309), C32(0x93711A25), C32(0xF9F671B8), C32(0xB01D2116), C32(0x333F4B89), C32(0xB285D165), C32(0x86829B36) }; static const sph_u32 C_init_384[] = { C32(0xF764B11A), C32(0x76172146), C32(0xCEF6934D), C32(0xC6D28399), C32(0xFE095F61), C32(0x5E6018B4), C32(0x5048ECF5), C32(0x51353261), C32(0x6E6E36DC), C32(0x63130DAD), C32(0xA9C69BD6), C32(0x1E90EA0C), C32(0x7C35073B), C32(0x28D95E6D), C32(0xAA340E0D), C32(0xCB3DEE70) }; static const sph_u32 A_init_512[] = { C32(0x20728DFD), C32(0x46C0BD53), C32(0xE782B699), C32(0x55304632), C32(0x71B4EF90), C32(0x0EA9E82C), C32(0xDBB930F1), C32(0xFAD06B8B), C32(0xBE0CAE40), C32(0x8BD14410), C32(0x76D2ADAC), C32(0x28ACAB7F) }; static const sph_u32 B_init_512[] = { C32(0xC1099CB7), C32(0x07B385F3), C32(0xE7442C26), C32(0xCC8AD640), C32(0xEB6F56C7), C32(0x1EA81AA9), C32(0x73B9D314), C32(0x1DE85D08), C32(0x48910A5A), C32(0x893B22DB), C32(0xC5A0DF44), C32(0xBBC4324E), C32(0x72D2F240), C32(0x75941D99), C32(0x6D8BDE82), C32(0xA1A7502B) }; static const sph_u32 C_init_512[] = { C32(0xD9BF68D1), C32(0x58BAD750), C32(0x56028CB2), C32(0x8134F359), C32(0xB5D469D8), C32(0x941A8CC2), C32(0x418B2A6E), C32(0x04052780), C32(0x7F07D787), C32(0x5194358F), C32(0x3C60D665), C32(0xBE97D79A), C32(0x950C3434), C32(0xAED9A06D), C32(0x2537DC8D), C32(0x7CDB5969) }; /* END -- automatically generated code. */ static void shabal_init(void *cc, unsigned size) { /* * We have precomputed initial states for all the supported * output bit lengths. */ const sph_u32 *A_init, *B_init, *C_init; sph_shabal_context *sc; switch (size) { case 192: A_init = A_init_192; B_init = B_init_192; C_init = C_init_192; break; case 224: A_init = A_init_224; B_init = B_init_224; C_init = C_init_224; break; case 256: A_init = A_init_256; B_init = B_init_256; C_init = C_init_256; break; case 384: A_init = A_init_384; B_init = B_init_384; C_init = C_init_384; break; case 512: A_init = A_init_512; B_init = B_init_512; C_init = C_init_512; break; default: return; } sc = (sph_shabal_context *)cc; memcpy(sc->A, A_init, sizeof sc->A); memcpy(sc->B, B_init, sizeof sc->B); memcpy(sc->C, C_init, sizeof sc->C); sc->Wlow = 1; sc->Whigh = 0; sc->ptr = 0; } static void shabal_core(void *cc, const unsigned char *data, size_t len) { sph_shabal_context *sc; unsigned char *buf; size_t ptr; DECL_STATE sc = (sph_shabal_context *)cc; buf = sc->buf; ptr = sc->ptr; /* * We do not want to copy the state to local variables if the * amount of data is less than what is needed to complete the * current block. Note that it is anyway suboptimal to call * this method many times for small chunks of data. */ if (len < (sizeof sc->buf) - ptr) { memcpy(buf + ptr, data, len); ptr += len; sc->ptr = ptr; return; } READ_STATE(sc); while (len > 0) { size_t clen; clen = (sizeof sc->buf) - ptr; if (clen > len) clen = len; memcpy(buf + ptr, data, clen); ptr += clen; data += clen; len -= clen; if (ptr == sizeof sc->buf) { DECODE_BLOCK; INPUT_BLOCK_ADD; XOR_W; APPLY_P; INPUT_BLOCK_SUB; SWAP_BC; INCR_W; ptr = 0; } } WRITE_STATE(sc); sc->ptr = ptr; } static void shabal_close(void *cc, unsigned ub, unsigned n, void *dst, unsigned size_words) { sph_shabal_context *sc; unsigned char *buf; size_t ptr; int i; unsigned z; union { unsigned char tmp_out[64]; sph_u32 dummy; } u; size_t out_len; DECL_STATE sc = (sph_shabal_context *)cc; buf = sc->buf; ptr = sc->ptr; z = 0x80 >> n; buf[ptr] = ((ub & -z) | z) & 0xFF; memset(buf + ptr + 1, 0, (sizeof sc->buf) - (ptr + 1)); READ_STATE(sc); DECODE_BLOCK; INPUT_BLOCK_ADD; XOR_W; APPLY_P; for (i = 0; i < 3; i ++) { SWAP_BC; XOR_W; APPLY_P; } /* * We just use our local variables; no need to go through * the state structure. In order to share some code, we * emit the relevant words into a temporary buffer, which * we finally copy into the destination array. */ switch (size_words) { case 16: sph_enc32le_aligned(u.tmp_out + 0, B0); sph_enc32le_aligned(u.tmp_out + 4, B1); sph_enc32le_aligned(u.tmp_out + 8, B2); sph_enc32le_aligned(u.tmp_out + 12, B3); /* fall through */ case 12: sph_enc32le_aligned(u.tmp_out + 16, B4); sph_enc32le_aligned(u.tmp_out + 20, B5); sph_enc32le_aligned(u.tmp_out + 24, B6); sph_enc32le_aligned(u.tmp_out + 28, B7); /* fall through */ case 8: sph_enc32le_aligned(u.tmp_out + 32, B8); /* fall through */ case 7: sph_enc32le_aligned(u.tmp_out + 36, B9); /* fall through */ case 6: sph_enc32le_aligned(u.tmp_out + 40, BA); sph_enc32le_aligned(u.tmp_out + 44, BB); sph_enc32le_aligned(u.tmp_out + 48, BC); sph_enc32le_aligned(u.tmp_out + 52, BD); sph_enc32le_aligned(u.tmp_out + 56, BE); sph_enc32le_aligned(u.tmp_out + 60, BF); break; default: return; } out_len = size_words << 2; memcpy(dst, u.tmp_out + (sizeof u.tmp_out) - out_len, out_len); shabal_init(sc, size_words << 5); } /* see sph_shabal.h */ void sph_shabal192_init(void *cc) { shabal_init(cc, 192); } /* see sph_shabal.h */ void sph_shabal192(void *cc, const void *data, size_t len) { shabal_core(cc, (const unsigned char*)data, len); } /* see sph_shabal.h */ void sph_shabal192_close(void *cc, void *dst) { shabal_close(cc, 0, 0, dst, 6); } /* see sph_shabal.h */ void sph_shabal192_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) { shabal_close(cc, ub, n, dst, 6); } /* see sph_shabal.h */ void sph_shabal224_init(void *cc) { shabal_init(cc, 224); } /* see sph_shabal.h */ void sph_shabal224(void *cc, const void *data, size_t len) { shabal_core(cc, (const unsigned char*)data, len); } /* see sph_shabal.h */ void sph_shabal224_close(void *cc, void *dst) { shabal_close(cc, 0, 0, dst, 7); } /* see sph_shabal.h */ void sph_shabal224_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) { shabal_close(cc, ub, n, dst, 7); } /* see sph_shabal.h */ void sph_shabal256_init(void *cc) { shabal_init(cc, 256); } /* see sph_shabal.h */ void sph_shabal256(void *cc, const void *data, size_t len) { shabal_core(cc, (const unsigned char*)data, len); } /* see sph_shabal.h */ void sph_shabal256_close(void *cc, void *dst) { shabal_close(cc, 0, 0, dst, 8); } /* see sph_shabal.h */ void sph_shabal256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) { shabal_close(cc, ub, n, dst, 8); } /* see sph_shabal.h */ void sph_shabal384_init(void *cc) { shabal_init(cc, 384); } /* see sph_shabal.h */ void sph_shabal384(void *cc, const void *data, size_t len) { shabal_core(cc, (const unsigned char*)data, len); } /* see sph_shabal.h */ void sph_shabal384_close(void *cc, void *dst) { shabal_close(cc, 0, 0, dst, 12); } /* see sph_shabal.h */ void sph_shabal384_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) { shabal_close(cc, ub, n, dst, 12); } /* see sph_shabal.h */ void sph_shabal512_init(void *cc) { shabal_init(cc, 512); } /* see sph_shabal.h */ void sph_shabal512(void *cc, const void *data, size_t len) { shabal_core(cc, (const unsigned char*)data, len); } /* see sph_shabal.h */ void sph_shabal512_close(void *cc, void *dst) { shabal_close(cc, 0, 0, dst, 16); } /* see sph_shabal.h */ void sph_shabal512_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) { shabal_close(cc, ub, n, dst, 16); } #ifdef __cplusplus } #endif