X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/ba6e6b64033b1f9de49feccb5c9cd438354481f7..0f00dc4c8eb47e67bc0f148c2dd109f73a451e0a:/sha512.c diff --git a/sha512.c b/sha512.c deleted file mode 100644 index 2f39472..0000000 --- a/sha512.c +++ /dev/null @@ -1,342 +0,0 @@ -/* -*-c-*- - * - * $Id: sha512.c,v 1.2 2004/04/08 01:36:15 mdw Exp $ - * - * Implementation of the SHA-512 hash function - * - * (c) 2000 Straylight/Edgeware - */ - -/*----- Licensing notice --------------------------------------------------* - * - * This file is part of Catacomb. - * - * Catacomb is free software; you can redistribute it and/or modify - * it under the terms of the GNU Library General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * Catacomb is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with Catacomb; if not, write to the Free - * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, - * MA 02111-1307, USA. - */ - -/*----- Header files ------------------------------------------------------*/ - -#include - -#include "ghash.h" -#include "ghash-def.h" -#include "hash.h" -#include "sha512.h" - -/*----- Main code ---------------------------------------------------------*/ - -/* --- @sha512_compress@, @sha384_compress@ --- * - * - * Arguments: @sha512_ctx *ctx@ = pointer to context block - * @const void *sbuf@ = pointer to buffer of appropriate size - * - * Returns: --- - * - * Use: SHA-512 compression function. - */ - -void sha512_compress(sha512_ctx *ctx, const void *sbuf) -{ - kludge64 a, b, c, d, e, f, g, h; - kludge64 buf[80]; - int i; - - static const kludge64 K[80] = { - X64(428a2f98, d728ae22), X64(71374491, 23ef65cd), - X64(b5c0fbcf, ec4d3b2f), X64(e9b5dba5, 8189dbbc), - X64(3956c25b, f348b538), X64(59f111f1, b605d019), - X64(923f82a4, af194f9b), X64(ab1c5ed5, da6d8118), - X64(d807aa98, a3030242), X64(12835b01, 45706fbe), - X64(243185be, 4ee4b28c), X64(550c7dc3, d5ffb4e2), - X64(72be5d74, f27b896f), X64(80deb1fe, 3b1696b1), - X64(9bdc06a7, 25c71235), X64(c19bf174, cf692694), - X64(e49b69c1, 9ef14ad2), X64(efbe4786, 384f25e3), - X64(0fc19dc6, 8b8cd5b5), X64(240ca1cc, 77ac9c65), - X64(2de92c6f, 592b0275), X64(4a7484aa, 6ea6e483), - X64(5cb0a9dc, bd41fbd4), X64(76f988da, 831153b5), - X64(983e5152, ee66dfab), X64(a831c66d, 2db43210), - X64(b00327c8, 98fb213f), X64(bf597fc7, beef0ee4), - X64(c6e00bf3, 3da88fc2), X64(d5a79147, 930aa725), - X64(06ca6351, e003826f), X64(14292967, 0a0e6e70), - X64(27b70a85, 46d22ffc), X64(2e1b2138, 5c26c926), - X64(4d2c6dfc, 5ac42aed), X64(53380d13, 9d95b3df), - X64(650a7354, 8baf63de), X64(766a0abb, 3c77b2a8), - X64(81c2c92e, 47edaee6), X64(92722c85, 1482353b), - X64(a2bfe8a1, 4cf10364), X64(a81a664b, bc423001), - X64(c24b8b70, d0f89791), X64(c76c51a3, 0654be30), - X64(d192e819, d6ef5218), X64(d6990624, 5565a910), - X64(f40e3585, 5771202a), X64(106aa070, 32bbd1b8), - X64(19a4c116, b8d2d0c8), X64(1e376c08, 5141ab53), - X64(2748774c, df8eeb99), X64(34b0bcb5, e19b48a8), - X64(391c0cb3, c5c95a63), X64(4ed8aa4a, e3418acb), - X64(5b9cca4f, 7763e373), X64(682e6ff3, d6b2b8a3), - X64(748f82ee, 5defb2fc), X64(78a5636f, 43172f60), - X64(84c87814, a1f0ab72), X64(8cc70208, 1a6439ec), - X64(90befffa, 23631e28), X64(a4506ceb, de82bde9), - X64(bef9a3f7, b2c67915), X64(c67178f2, e372532b), - X64(ca273ece, ea26619c), X64(d186b8c7, 21c0c207), - X64(eada7dd6, cde0eb1e), X64(f57d4f7f, ee6ed178), - X64(06f067aa, 72176fba), X64(0a637dc5, a2c898a6), - X64(113f9804, bef90dae), X64(1b710b35, 131c471b), - X64(28db77f5, 23047d84), X64(32caab7b, 40c72493), - X64(3c9ebe0a, 15c9bebc), X64(431d67c4, 9c100d4c), - X64(4cc5d4be, cb3e42b6), X64(597f299c, fc657e2a), - X64(5fcb6fab, 3ad6faec), X64(6c44198c, 4a475817) - }; - - /* --- Fetch the chaining variables --- */ - - a = ctx->a; - b = ctx->b; - c = ctx->c; - d = ctx->d; - e = ctx->e; - f = ctx->f; - g = ctx->g; - h = ctx->h; - - /* --- Definitions for round functions --- */ - -#define CH(d, x, y, z) do { \ - kludge64 _x; AND64((d), (x), (y)); CPL64(_x, (x)); \ - AND64(_x, _x, (z)); OR64((d), (d), _x); \ -} while (0) - -#define MAJ(d, x, y, z) do { \ - kludge64 _x; AND64((d), (x), (y)); AND64(_x, (x), (z)); \ - OR64((d), (d), _x); AND64(_x, (y), (z)); OR64((d), (d), _x); \ -} while (0) - -#define SIGMA(d, x, i, j, k, last, what) do { \ - kludge64 _x; ROR64_((d), (x), (i)); ROR64_(_x, (x), (j)); \ - XOR64((d), (d), _x); last##64_(_x, (x), (k)); XOR64((d), (d), _x); \ -} while (0) - -#define S0(d, x) SIGMA(d, x, 28, 34, 39, ROR, S0); -#define S1(d, x) SIGMA(d, x, 14, 18, 41, ROR, S1); -#define s0(d, x) SIGMA(d, x, 1, 8, 7, LSR, s0); -#define s1(d, x) SIGMA(d, x, 19, 61, 6, LSR, s1); - -#define T(a, b, c, d, e, f, g, h, i) do { \ - kludge64 t1, t2, x; \ - ADD64(t1, buf[i], K[i]); ADD64(t1, t1, h); \ - S1(x, e); ADD64(t1, t1, x); CH(x, e, f, g); ADD64(t1, t1, x); \ - S0(t2, a); MAJ(x, a, b, c); ADD64(t2, t2, x); \ - ADD64(d, d, t1); ADD64(h, t1, t2); \ -} while (0) - - /* --- Fetch and expand the buffer contents --- */ - - { - const octet *p; - - for (i = 0, p = sbuf; i < 16; i++, p += 8) - LOAD64_(buf[i], p); - for (i = 16; i < 80; i++) { - kludge64 x; - buf[i] = buf[i - 7]; s1(x, buf[i - 2]); ADD64(buf[i], buf[i], x); - s0(x, buf[i - 15]); ADD64(buf[i], buf[i], x); - ADD64(buf[i], buf[i], buf[i - 16]); - } - } - - /* --- The main compression function --- */ - - for (i = 0; i < 80; i += 8) { - T(a, b, c, d, e, f, g, h, i + 0); - T(h, a, b, c, d, e, f, g, i + 1); - T(g, h, a, b, c, d, e, f, i + 2); - T(f, g, h, a, b, c, d, e, i + 3); - T(e, f, g, h, a, b, c, d, i + 4); - T(d, e, f, g, h, a, b, c, i + 5); - T(c, d, e, f, g, h, a, b, i + 6); - T(b, c, d, e, f, g, h, a, i + 7); - } - - /* --- Update the chaining variables --- */ - - ADD64(ctx->a, ctx->a, a); - ADD64(ctx->b, ctx->b, b); - ADD64(ctx->c, ctx->c, c); - ADD64(ctx->d, ctx->d, d); - ADD64(ctx->e, ctx->e, e); - ADD64(ctx->f, ctx->f, f); - ADD64(ctx->g, ctx->g, g); - ADD64(ctx->h, ctx->h, h); -} - -/* --- @sha512_init@, @sha384_init@ --- * - * - * Arguments: @sha512_ctx *ctx@ = pointer to context block to initialize - * - * Returns: --- - * - * Use: Initializes a context block ready for hashing. - */ - -void sha512_init(sha512_ctx *ctx) -{ - SET64(ctx->a, 0x6a09e667, 0xf3bcc908); - SET64(ctx->b, 0xbb67ae85, 0x84caa73b); - SET64(ctx->c, 0x3c6ef372, 0xfe94f82b); - SET64(ctx->d, 0xa54ff53a, 0x5f1d36f1); - SET64(ctx->e, 0x510e527f, 0xade682d1); - SET64(ctx->f, 0x9b05688c, 0x2b3e6c1f); - SET64(ctx->g, 0x1f83d9ab, 0xfb41bd6b); - SET64(ctx->h, 0x5be0cd19, 0x137e2179); - ctx->off = 0; - ctx->nh = ctx->nl = 0; -} - -void sha384_init(sha512_ctx *ctx) -{ - SET64(ctx->a, 0xcbbb9d5d, 0xc1059ed8); - SET64(ctx->b, 0x629a292a, 0x367cd507); - SET64(ctx->c, 0x9159015a, 0x3070dd17); - SET64(ctx->d, 0x152fecd8, 0xf70e5939); - SET64(ctx->e, 0x67332667, 0xffc00b31); - SET64(ctx->f, 0x8eb44a87, 0x68581511); - SET64(ctx->g, 0xdb0c2e0d, 0x64f98fa7); - SET64(ctx->h, 0x47b5481d, 0xbefa4fa4); - ctx->off = 0; - ctx->nh = ctx->nl = 0; -} - -/* --- @sha512_set@, @sha384_set@ --- * - * - * Arguments: @sha512_ctx *ctx@ = pointer to context block - * @const void *buf@ = pointer to state buffer - * @unsigned long count@ = current count of bytes processed - * - * Returns: --- - * - * Use: Initializes a context block from a given state. This is - * useful in cases where the initial hash state is meant to be - * secret, e.g., for NMAC and HMAC support. - */ - -void sha512_set(sha512_ctx *ctx, const void *buf, unsigned long count) -{ - const octet *p = buf; - LOAD64_(ctx->a, p + 0); - LOAD64_(ctx->b, p + 8); - LOAD64_(ctx->c, p + 16); - LOAD64_(ctx->d, p + 24); - LOAD64_(ctx->e, p + 32); - LOAD64_(ctx->f, p + 40); - LOAD64_(ctx->g, p + 48); - LOAD64_(ctx->h, p + 56); - ctx->off = 0; - ctx->nl = U32(count); - ctx->nh = U32(((count & ~MASK32) >> 16) >> 16); -} - -/* --- @sha512_hash@, @sha384_hash@ --- * - * - * Arguments: @sha512_ctx *ctx@ = pointer to context block - * @const void *buf@ = buffer of data to hash - * @size_t sz@ = size of buffer to hash - * - * Returns: --- - * - * Use: Hashes a buffer of data. The buffer may be of any size and - * alignment. - */ - -void sha512_hash(sha512_ctx *ctx, const void *buf, size_t sz) -{ - HASH_BUFFER(SHA512, sha512, ctx, buf, sz); -} - -/* --- @sha512_done@, @sha384_done@ --- * - * - * Arguments: @sha512_ctx *ctx@ = pointer to context block - * @void *hash@ = pointer to output buffer - * - * Returns: --- - * - * Use: Returns the hash of the data read so far. - */ - -static void final(sha512_ctx *ctx) -{ - HASH_PAD(SHA512, sha512, ctx, 0x80, 0, 16); - memset(ctx->buf + SHA512_BUFSZ - 16, 0, 8); - STORE32(ctx->buf + SHA512_BUFSZ - 8, (ctx->nl >> 29) | (ctx->nh << 3)); - STORE32(ctx->buf + SHA512_BUFSZ - 4, ctx->nl << 3); - sha512_compress(ctx, ctx->buf); -} - -void sha512_done(sha512_ctx *ctx, void *hash) -{ - octet *p = hash; - final(ctx); - STORE64_(p + 0, ctx->a); - STORE64_(p + 8, ctx->b); - STORE64_(p + 16, ctx->c); - STORE64_(p + 24, ctx->d); - STORE64_(p + 32, ctx->e); - STORE64_(p + 40, ctx->f); - STORE64_(p + 48, ctx->g); - STORE64_(p + 56, ctx->h); -} - -void sha384_done(sha384_ctx *ctx, void *hash) -{ - octet *p = hash; - final(ctx); - STORE64_(p + 0, ctx->a); - STORE64_(p + 8, ctx->b); - STORE64_(p + 16, ctx->c); - STORE64_(p + 24, ctx->d); - STORE64_(p + 32, ctx->e); - STORE64_(p + 40, ctx->f); -} - -/* --- @sha512_state@, @sha384_state@ --- * - * - * Arguments: @sha512_ctx *ctx@ = pointer to context - * @void *state@ = pointer to buffer for current state - * - * Returns: Number of bytes written to the hash function so far. - * - * Use: Returns the current state of the hash function such that - * it can be passed to @sha512_set@. - */ - -unsigned long sha512_state(sha512_ctx *ctx, void *state) -{ - octet *p = state; - STORE64_(p + 0, ctx->a); - STORE64_(p + 8, ctx->b); - STORE64_(p + 16, ctx->c); - STORE64_(p + 24, ctx->d); - STORE64_(p + 32, ctx->e); - STORE64_(p + 40, ctx->f); - STORE64_(p + 48, ctx->g); - STORE64_(p + 56, ctx->h); - return (ctx->nl | ((ctx->nh << 16) << 16)); -} - -/* --- Generic interface --- */ - -GHASH_DEF(SHA512, sha512) - -/* --- Test code --- */ - -HASH_TEST(SHA512, sha512) - -/*----- That's all, folks -------------------------------------------------*/