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Diffstat (limited to 'libqpdf/sha2.c')
-rw-r--r-- | libqpdf/sha2.c | 690 |
1 files changed, 690 insertions, 0 deletions
diff --git a/libqpdf/sha2.c b/libqpdf/sha2.c new file mode 100644 index 00000000..45fdd7e6 --- /dev/null +++ b/libqpdf/sha2.c @@ -0,0 +1,690 @@ +/* $Id: sha2.c 227 2010-06-16 17:28:38Z tp $ */ +/* + * SHA-224 / SHA-256 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 <thomas.pornin@cryptolog.com> + */ + +#include <stddef.h> +#include <string.h> + +#include "sph/sph_sha2.h" + +#if SPH_SMALL_FOOTPRINT && !defined SPH_SMALL_FOOTPRINT_SHA2 +#define SPH_SMALL_FOOTPRINT_SHA2 1 +#endif + +#define CH(X, Y, Z) ((((Y) ^ (Z)) & (X)) ^ (Z)) +#define MAJ(X, Y, Z) (((Y) & (Z)) | (((Y) | (Z)) & (X))) + +#define ROTR SPH_ROTR32 + +#define BSG2_0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) +#define BSG2_1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) +#define SSG2_0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SPH_T32((x) >> 3)) +#define SSG2_1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SPH_T32((x) >> 10)) + +static const sph_u32 H224[8] = { + SPH_C32(0xC1059ED8), SPH_C32(0x367CD507), SPH_C32(0x3070DD17), + SPH_C32(0xF70E5939), SPH_C32(0xFFC00B31), SPH_C32(0x68581511), + SPH_C32(0x64F98FA7), SPH_C32(0xBEFA4FA4) +}; + +static const sph_u32 H256[8] = { + SPH_C32(0x6A09E667), SPH_C32(0xBB67AE85), SPH_C32(0x3C6EF372), + SPH_C32(0xA54FF53A), SPH_C32(0x510E527F), SPH_C32(0x9B05688C), + SPH_C32(0x1F83D9AB), SPH_C32(0x5BE0CD19) +}; + +/* + * The SHA2_ROUND_BODY defines the body for a SHA-224 / SHA-256 + * compression function implementation. The "in" parameter should + * evaluate, when applied to a numerical input parameter from 0 to 15, + * to an expression which yields the corresponding input block. The "r" + * parameter should evaluate to an array or pointer expression + * designating the array of 8 words which contains the input and output + * of the compression function. + */ + +#if SPH_SMALL_FOOTPRINT_SHA2 + +static const sph_u32 K[64] = { + SPH_C32(0x428A2F98), SPH_C32(0x71374491), + SPH_C32(0xB5C0FBCF), SPH_C32(0xE9B5DBA5), + SPH_C32(0x3956C25B), SPH_C32(0x59F111F1), + SPH_C32(0x923F82A4), SPH_C32(0xAB1C5ED5), + SPH_C32(0xD807AA98), SPH_C32(0x12835B01), + SPH_C32(0x243185BE), SPH_C32(0x550C7DC3), + SPH_C32(0x72BE5D74), SPH_C32(0x80DEB1FE), + SPH_C32(0x9BDC06A7), SPH_C32(0xC19BF174), + SPH_C32(0xE49B69C1), SPH_C32(0xEFBE4786), + SPH_C32(0x0FC19DC6), SPH_C32(0x240CA1CC), + SPH_C32(0x2DE92C6F), SPH_C32(0x4A7484AA), + SPH_C32(0x5CB0A9DC), SPH_C32(0x76F988DA), + SPH_C32(0x983E5152), SPH_C32(0xA831C66D), + SPH_C32(0xB00327C8), SPH_C32(0xBF597FC7), + SPH_C32(0xC6E00BF3), SPH_C32(0xD5A79147), + SPH_C32(0x06CA6351), SPH_C32(0x14292967), + SPH_C32(0x27B70A85), SPH_C32(0x2E1B2138), + SPH_C32(0x4D2C6DFC), SPH_C32(0x53380D13), + SPH_C32(0x650A7354), SPH_C32(0x766A0ABB), + SPH_C32(0x81C2C92E), SPH_C32(0x92722C85), + SPH_C32(0xA2BFE8A1), SPH_C32(0xA81A664B), + SPH_C32(0xC24B8B70), SPH_C32(0xC76C51A3), + SPH_C32(0xD192E819), SPH_C32(0xD6990624), + SPH_C32(0xF40E3585), SPH_C32(0x106AA070), + SPH_C32(0x19A4C116), SPH_C32(0x1E376C08), + SPH_C32(0x2748774C), SPH_C32(0x34B0BCB5), + SPH_C32(0x391C0CB3), SPH_C32(0x4ED8AA4A), + SPH_C32(0x5B9CCA4F), SPH_C32(0x682E6FF3), + SPH_C32(0x748F82EE), SPH_C32(0x78A5636F), + SPH_C32(0x84C87814), SPH_C32(0x8CC70208), + SPH_C32(0x90BEFFFA), SPH_C32(0xA4506CEB), + SPH_C32(0xBEF9A3F7), SPH_C32(0xC67178F2) +}; + +#define SHA2_MEXP1(in, pc) do { \ + W[pc] = in(pc); \ + } while (0) + +#define SHA2_MEXP2(in, pc) do { \ + W[(pc) & 0x0F] = SPH_T32(SSG2_1(W[((pc) - 2) & 0x0F]) \ + + W[((pc) - 7) & 0x0F] \ + + SSG2_0(W[((pc) - 15) & 0x0F]) + W[(pc) & 0x0F]); \ + } while (0) + +#define SHA2_STEPn(n, a, b, c, d, e, f, g, h, in, pc) do { \ + sph_u32 t1, t2; \ + SHA2_MEXP ## n(in, pc); \ + t1 = SPH_T32(h + BSG2_1(e) + CH(e, f, g) \ + + K[pcount + (pc)] + W[(pc) & 0x0F]); \ + t2 = SPH_T32(BSG2_0(a) + MAJ(a, b, c)); \ + d = SPH_T32(d + t1); \ + h = SPH_T32(t1 + t2); \ + } while (0) + +#define SHA2_STEP1(a, b, c, d, e, f, g, h, in, pc) \ + SHA2_STEPn(1, a, b, c, d, e, f, g, h, in, pc) +#define SHA2_STEP2(a, b, c, d, e, f, g, h, in, pc) \ + SHA2_STEPn(2, a, b, c, d, e, f, g, h, in, pc) + +#define SHA2_ROUND_BODY(in, r) do { \ + sph_u32 A, B, C, D, E, F, G, H; \ + sph_u32 W[16]; \ + unsigned pcount; \ + \ + A = (r)[0]; \ + B = (r)[1]; \ + C = (r)[2]; \ + D = (r)[3]; \ + E = (r)[4]; \ + F = (r)[5]; \ + G = (r)[6]; \ + H = (r)[7]; \ + pcount = 0; \ + SHA2_STEP1(A, B, C, D, E, F, G, H, in, 0); \ + SHA2_STEP1(H, A, B, C, D, E, F, G, in, 1); \ + SHA2_STEP1(G, H, A, B, C, D, E, F, in, 2); \ + SHA2_STEP1(F, G, H, A, B, C, D, E, in, 3); \ + SHA2_STEP1(E, F, G, H, A, B, C, D, in, 4); \ + SHA2_STEP1(D, E, F, G, H, A, B, C, in, 5); \ + SHA2_STEP1(C, D, E, F, G, H, A, B, in, 6); \ + SHA2_STEP1(B, C, D, E, F, G, H, A, in, 7); \ + SHA2_STEP1(A, B, C, D, E, F, G, H, in, 8); \ + SHA2_STEP1(H, A, B, C, D, E, F, G, in, 9); \ + SHA2_STEP1(G, H, A, B, C, D, E, F, in, 10); \ + SHA2_STEP1(F, G, H, A, B, C, D, E, in, 11); \ + SHA2_STEP1(E, F, G, H, A, B, C, D, in, 12); \ + SHA2_STEP1(D, E, F, G, H, A, B, C, in, 13); \ + SHA2_STEP1(C, D, E, F, G, H, A, B, in, 14); \ + SHA2_STEP1(B, C, D, E, F, G, H, A, in, 15); \ + for (pcount = 16; pcount < 64; pcount += 16) { \ + SHA2_STEP2(A, B, C, D, E, F, G, H, in, 0); \ + SHA2_STEP2(H, A, B, C, D, E, F, G, in, 1); \ + SHA2_STEP2(G, H, A, B, C, D, E, F, in, 2); \ + SHA2_STEP2(F, G, H, A, B, C, D, E, in, 3); \ + SHA2_STEP2(E, F, G, H, A, B, C, D, in, 4); \ + SHA2_STEP2(D, E, F, G, H, A, B, C, in, 5); \ + SHA2_STEP2(C, D, E, F, G, H, A, B, in, 6); \ + SHA2_STEP2(B, C, D, E, F, G, H, A, in, 7); \ + SHA2_STEP2(A, B, C, D, E, F, G, H, in, 8); \ + SHA2_STEP2(H, A, B, C, D, E, F, G, in, 9); \ + SHA2_STEP2(G, H, A, B, C, D, E, F, in, 10); \ + SHA2_STEP2(F, G, H, A, B, C, D, E, in, 11); \ + SHA2_STEP2(E, F, G, H, A, B, C, D, in, 12); \ + SHA2_STEP2(D, E, F, G, H, A, B, C, in, 13); \ + SHA2_STEP2(C, D, E, F, G, H, A, B, in, 14); \ + SHA2_STEP2(B, C, D, E, F, G, H, A, in, 15); \ + } \ + (r)[0] = SPH_T32((r)[0] + A); \ + (r)[1] = SPH_T32((r)[1] + B); \ + (r)[2] = SPH_T32((r)[2] + C); \ + (r)[3] = SPH_T32((r)[3] + D); \ + (r)[4] = SPH_T32((r)[4] + E); \ + (r)[5] = SPH_T32((r)[5] + F); \ + (r)[6] = SPH_T32((r)[6] + G); \ + (r)[7] = SPH_T32((r)[7] + H); \ + } while (0) + +#else + +#define SHA2_ROUND_BODY(in, r) do { \ + sph_u32 A, B, C, D, E, F, G, H, T1, T2; \ + sph_u32 W00, W01, W02, W03, W04, W05, W06, W07; \ + sph_u32 W08, W09, W10, W11, W12, W13, W14, W15; \ + \ + A = (r)[0]; \ + B = (r)[1]; \ + C = (r)[2]; \ + D = (r)[3]; \ + E = (r)[4]; \ + F = (r)[5]; \ + G = (r)[6]; \ + H = (r)[7]; \ + W00 = in(0); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0x428A2F98) + W00); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W01 = in(1); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0x71374491) + W01); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W02 = in(2); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0xB5C0FBCF) + W02); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W03 = in(3); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0xE9B5DBA5) + W03); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W04 = in(4); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0x3956C25B) + W04); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W05 = in(5); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0x59F111F1) + W05); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W06 = in(6); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0x923F82A4) + W06); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W07 = in(7); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0xAB1C5ED5) + W07); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + W08 = in(8); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0xD807AA98) + W08); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W09 = in(9); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0x12835B01) + W09); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W10 = in(10); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0x243185BE) + W10); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W11 = in(11); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0x550C7DC3) + W11); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W12 = in(12); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0x72BE5D74) + W12); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W13 = in(13); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0x80DEB1FE) + W13); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W14 = in(14); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0x9BDC06A7) + W14); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W15 = in(15); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0xC19BF174) + W15); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + W00 = SPH_T32(SSG2_1(W14) + W09 + SSG2_0(W01) + W00); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0xE49B69C1) + W00); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W01 = SPH_T32(SSG2_1(W15) + W10 + SSG2_0(W02) + W01); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0xEFBE4786) + W01); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W02 = SPH_T32(SSG2_1(W00) + W11 + SSG2_0(W03) + W02); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0x0FC19DC6) + W02); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W03 = SPH_T32(SSG2_1(W01) + W12 + SSG2_0(W04) + W03); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0x240CA1CC) + W03); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W04 = SPH_T32(SSG2_1(W02) + W13 + SSG2_0(W05) + W04); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0x2DE92C6F) + W04); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W05 = SPH_T32(SSG2_1(W03) + W14 + SSG2_0(W06) + W05); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0x4A7484AA) + W05); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W06 = SPH_T32(SSG2_1(W04) + W15 + SSG2_0(W07) + W06); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0x5CB0A9DC) + W06); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W07 = SPH_T32(SSG2_1(W05) + W00 + SSG2_0(W08) + W07); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0x76F988DA) + W07); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + W08 = SPH_T32(SSG2_1(W06) + W01 + SSG2_0(W09) + W08); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0x983E5152) + W08); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W09 = SPH_T32(SSG2_1(W07) + W02 + SSG2_0(W10) + W09); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0xA831C66D) + W09); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W10 = SPH_T32(SSG2_1(W08) + W03 + SSG2_0(W11) + W10); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0xB00327C8) + W10); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W11 = SPH_T32(SSG2_1(W09) + W04 + SSG2_0(W12) + W11); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0xBF597FC7) + W11); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W12 = SPH_T32(SSG2_1(W10) + W05 + SSG2_0(W13) + W12); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0xC6E00BF3) + W12); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W13 = SPH_T32(SSG2_1(W11) + W06 + SSG2_0(W14) + W13); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0xD5A79147) + W13); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W14 = SPH_T32(SSG2_1(W12) + W07 + SSG2_0(W15) + W14); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0x06CA6351) + W14); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W15 = SPH_T32(SSG2_1(W13) + W08 + SSG2_0(W00) + W15); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0x14292967) + W15); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + W00 = SPH_T32(SSG2_1(W14) + W09 + SSG2_0(W01) + W00); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0x27B70A85) + W00); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W01 = SPH_T32(SSG2_1(W15) + W10 + SSG2_0(W02) + W01); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0x2E1B2138) + W01); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W02 = SPH_T32(SSG2_1(W00) + W11 + SSG2_0(W03) + W02); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0x4D2C6DFC) + W02); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W03 = SPH_T32(SSG2_1(W01) + W12 + SSG2_0(W04) + W03); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0x53380D13) + W03); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W04 = SPH_T32(SSG2_1(W02) + W13 + SSG2_0(W05) + W04); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0x650A7354) + W04); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W05 = SPH_T32(SSG2_1(W03) + W14 + SSG2_0(W06) + W05); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0x766A0ABB) + W05); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W06 = SPH_T32(SSG2_1(W04) + W15 + SSG2_0(W07) + W06); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0x81C2C92E) + W06); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W07 = SPH_T32(SSG2_1(W05) + W00 + SSG2_0(W08) + W07); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0x92722C85) + W07); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + W08 = SPH_T32(SSG2_1(W06) + W01 + SSG2_0(W09) + W08); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0xA2BFE8A1) + W08); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W09 = SPH_T32(SSG2_1(W07) + W02 + SSG2_0(W10) + W09); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0xA81A664B) + W09); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W10 = SPH_T32(SSG2_1(W08) + W03 + SSG2_0(W11) + W10); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0xC24B8B70) + W10); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W11 = SPH_T32(SSG2_1(W09) + W04 + SSG2_0(W12) + W11); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0xC76C51A3) + W11); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W12 = SPH_T32(SSG2_1(W10) + W05 + SSG2_0(W13) + W12); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0xD192E819) + W12); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W13 = SPH_T32(SSG2_1(W11) + W06 + SSG2_0(W14) + W13); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0xD6990624) + W13); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W14 = SPH_T32(SSG2_1(W12) + W07 + SSG2_0(W15) + W14); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0xF40E3585) + W14); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W15 = SPH_T32(SSG2_1(W13) + W08 + SSG2_0(W00) + W15); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0x106AA070) + W15); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + W00 = SPH_T32(SSG2_1(W14) + W09 + SSG2_0(W01) + W00); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0x19A4C116) + W00); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W01 = SPH_T32(SSG2_1(W15) + W10 + SSG2_0(W02) + W01); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0x1E376C08) + W01); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W02 = SPH_T32(SSG2_1(W00) + W11 + SSG2_0(W03) + W02); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0x2748774C) + W02); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W03 = SPH_T32(SSG2_1(W01) + W12 + SSG2_0(W04) + W03); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0x34B0BCB5) + W03); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W04 = SPH_T32(SSG2_1(W02) + W13 + SSG2_0(W05) + W04); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0x391C0CB3) + W04); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W05 = SPH_T32(SSG2_1(W03) + W14 + SSG2_0(W06) + W05); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0x4ED8AA4A) + W05); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W06 = SPH_T32(SSG2_1(W04) + W15 + SSG2_0(W07) + W06); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0x5B9CCA4F) + W06); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W07 = SPH_T32(SSG2_1(W05) + W00 + SSG2_0(W08) + W07); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0x682E6FF3) + W07); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + W08 = SPH_T32(SSG2_1(W06) + W01 + SSG2_0(W09) + W08); \ + T1 = SPH_T32(H + BSG2_1(E) + CH(E, F, G) \ + + SPH_C32(0x748F82EE) + W08); \ + T2 = SPH_T32(BSG2_0(A) + MAJ(A, B, C)); \ + D = SPH_T32(D + T1); \ + H = SPH_T32(T1 + T2); \ + W09 = SPH_T32(SSG2_1(W07) + W02 + SSG2_0(W10) + W09); \ + T1 = SPH_T32(G + BSG2_1(D) + CH(D, E, F) \ + + SPH_C32(0x78A5636F) + W09); \ + T2 = SPH_T32(BSG2_0(H) + MAJ(H, A, B)); \ + C = SPH_T32(C + T1); \ + G = SPH_T32(T1 + T2); \ + W10 = SPH_T32(SSG2_1(W08) + W03 + SSG2_0(W11) + W10); \ + T1 = SPH_T32(F + BSG2_1(C) + CH(C, D, E) \ + + SPH_C32(0x84C87814) + W10); \ + T2 = SPH_T32(BSG2_0(G) + MAJ(G, H, A)); \ + B = SPH_T32(B + T1); \ + F = SPH_T32(T1 + T2); \ + W11 = SPH_T32(SSG2_1(W09) + W04 + SSG2_0(W12) + W11); \ + T1 = SPH_T32(E + BSG2_1(B) + CH(B, C, D) \ + + SPH_C32(0x8CC70208) + W11); \ + T2 = SPH_T32(BSG2_0(F) + MAJ(F, G, H)); \ + A = SPH_T32(A + T1); \ + E = SPH_T32(T1 + T2); \ + W12 = SPH_T32(SSG2_1(W10) + W05 + SSG2_0(W13) + W12); \ + T1 = SPH_T32(D + BSG2_1(A) + CH(A, B, C) \ + + SPH_C32(0x90BEFFFA) + W12); \ + T2 = SPH_T32(BSG2_0(E) + MAJ(E, F, G)); \ + H = SPH_T32(H + T1); \ + D = SPH_T32(T1 + T2); \ + W13 = SPH_T32(SSG2_1(W11) + W06 + SSG2_0(W14) + W13); \ + T1 = SPH_T32(C + BSG2_1(H) + CH(H, A, B) \ + + SPH_C32(0xA4506CEB) + W13); \ + T2 = SPH_T32(BSG2_0(D) + MAJ(D, E, F)); \ + G = SPH_T32(G + T1); \ + C = SPH_T32(T1 + T2); \ + W14 = SPH_T32(SSG2_1(W12) + W07 + SSG2_0(W15) + W14); \ + T1 = SPH_T32(B + BSG2_1(G) + CH(G, H, A) \ + + SPH_C32(0xBEF9A3F7) + W14); \ + T2 = SPH_T32(BSG2_0(C) + MAJ(C, D, E)); \ + F = SPH_T32(F + T1); \ + B = SPH_T32(T1 + T2); \ + W15 = SPH_T32(SSG2_1(W13) + W08 + SSG2_0(W00) + W15); \ + T1 = SPH_T32(A + BSG2_1(F) + CH(F, G, H) \ + + SPH_C32(0xC67178F2) + W15); \ + T2 = SPH_T32(BSG2_0(B) + MAJ(B, C, D)); \ + E = SPH_T32(E + T1); \ + A = SPH_T32(T1 + T2); \ + (r)[0] = SPH_T32((r)[0] + A); \ + (r)[1] = SPH_T32((r)[1] + B); \ + (r)[2] = SPH_T32((r)[2] + C); \ + (r)[3] = SPH_T32((r)[3] + D); \ + (r)[4] = SPH_T32((r)[4] + E); \ + (r)[5] = SPH_T32((r)[5] + F); \ + (r)[6] = SPH_T32((r)[6] + G); \ + (r)[7] = SPH_T32((r)[7] + H); \ + } while (0) + +#endif + +/* + * One round of SHA-224 / SHA-256. The data must be aligned for 32-bit access. + */ +static void +sha2_round(const unsigned char *data, sph_u32 r[8]) +{ +#define SHA2_IN(x) sph_dec32be_aligned(data + (4 * (x))) + SHA2_ROUND_BODY(SHA2_IN, r); +#undef SHA2_IN +} + +/* see sph_sha2.h */ +void +sph_sha224_init(void *cc) +{ + sph_sha224_context *sc; + + sc = cc; + memcpy(sc->val, H224, sizeof H224); +#if SPH_64 + sc->count = 0; +#else + sc->count_high = sc->count_low = 0; +#endif +} + +/* see sph_sha2.h */ +void +sph_sha256_init(void *cc) +{ + sph_sha256_context *sc; + + sc = cc; + memcpy(sc->val, H256, sizeof H256); +#if SPH_64 + sc->count = 0; +#else + sc->count_high = sc->count_low = 0; +#endif +} + +#define RFUN sha2_round +#define HASH sha224 +#define BE32 1 +#include "sph/md_helper.c" + +/* see sph_sha2.h */ +void +sph_sha224_close(void *cc, void *dst) +{ + sha224_close(cc, dst, 7); + sph_sha224_init(cc); +} + +/* see sph_sha2.h */ +void +sph_sha224_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) +{ + sha224_addbits_and_close(cc, ub, n, dst, 7); + sph_sha224_init(cc); +} + +/* see sph_sha2.h */ +void +sph_sha256_close(void *cc, void *dst) +{ + sha224_close(cc, dst, 8); + sph_sha256_init(cc); +} + +/* see sph_sha2.h */ +void +sph_sha256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst) +{ + sha224_addbits_and_close(cc, ub, n, dst, 8); + sph_sha256_init(cc); +} + +/* see sph_sha2.h */ +void +sph_sha224_comp(const sph_u32 msg[16], sph_u32 val[8]) +{ +#define SHA2_IN(x) msg[x] + SHA2_ROUND_BODY(SHA2_IN, val); +#undef SHA2_IN +} |