diff options
Diffstat (limited to 'web/server/h2o/libh2o/deps/picotls/deps/cifra/src/sha512.c')
-rw-r--r-- | web/server/h2o/libh2o/deps/picotls/deps/cifra/src/sha512.c | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/web/server/h2o/libh2o/deps/picotls/deps/cifra/src/sha512.c b/web/server/h2o/libh2o/deps/picotls/deps/cifra/src/sha512.c deleted file mode 100644 index 2d1c8964d..000000000 --- a/web/server/h2o/libh2o/deps/picotls/deps/cifra/src/sha512.c +++ /dev/null @@ -1,248 +0,0 @@ -/* - * cifra - embedded cryptography library - * Written in 2014 by Joseph Birr-Pixton <jpixton@gmail.com> - * - * To the extent possible under law, the author(s) have dedicated all - * copyright and related and neighboring rights to this software to the - * public domain worldwide. This software is distributed without any - * warranty. - * - * You should have received a copy of the CC0 Public Domain Dedication - * along with this software. If not, see - * <http://creativecommons.org/publicdomain/zero/1.0/>. - */ - -#include <string.h> - -#include "sha2.h" -#include "blockwise.h" -#include "bitops.h" -#include "handy.h" -#include "tassert.h" - -static const uint64_t K[80] = { - UINT64_C(0x428a2f98d728ae22), UINT64_C(0x7137449123ef65cd), - UINT64_C(0xb5c0fbcfec4d3b2f), UINT64_C(0xe9b5dba58189dbbc), - UINT64_C(0x3956c25bf348b538), UINT64_C(0x59f111f1b605d019), - UINT64_C(0x923f82a4af194f9b), UINT64_C(0xab1c5ed5da6d8118), - UINT64_C(0xd807aa98a3030242), UINT64_C(0x12835b0145706fbe), - UINT64_C(0x243185be4ee4b28c), UINT64_C(0x550c7dc3d5ffb4e2), - UINT64_C(0x72be5d74f27b896f), UINT64_C(0x80deb1fe3b1696b1), - UINT64_C(0x9bdc06a725c71235), UINT64_C(0xc19bf174cf692694), - UINT64_C(0xe49b69c19ef14ad2), UINT64_C(0xefbe4786384f25e3), - UINT64_C(0x0fc19dc68b8cd5b5), UINT64_C(0x240ca1cc77ac9c65), - UINT64_C(0x2de92c6f592b0275), UINT64_C(0x4a7484aa6ea6e483), - UINT64_C(0x5cb0a9dcbd41fbd4), UINT64_C(0x76f988da831153b5), - UINT64_C(0x983e5152ee66dfab), UINT64_C(0xa831c66d2db43210), - UINT64_C(0xb00327c898fb213f), UINT64_C(0xbf597fc7beef0ee4), - UINT64_C(0xc6e00bf33da88fc2), UINT64_C(0xd5a79147930aa725), - UINT64_C(0x06ca6351e003826f), UINT64_C(0x142929670a0e6e70), - UINT64_C(0x27b70a8546d22ffc), UINT64_C(0x2e1b21385c26c926), - UINT64_C(0x4d2c6dfc5ac42aed), UINT64_C(0x53380d139d95b3df), - UINT64_C(0x650a73548baf63de), UINT64_C(0x766a0abb3c77b2a8), - UINT64_C(0x81c2c92e47edaee6), UINT64_C(0x92722c851482353b), - UINT64_C(0xa2bfe8a14cf10364), UINT64_C(0xa81a664bbc423001), - UINT64_C(0xc24b8b70d0f89791), UINT64_C(0xc76c51a30654be30), - UINT64_C(0xd192e819d6ef5218), UINT64_C(0xd69906245565a910), - UINT64_C(0xf40e35855771202a), UINT64_C(0x106aa07032bbd1b8), - UINT64_C(0x19a4c116b8d2d0c8), UINT64_C(0x1e376c085141ab53), - UINT64_C(0x2748774cdf8eeb99), UINT64_C(0x34b0bcb5e19b48a8), - UINT64_C(0x391c0cb3c5c95a63), UINT64_C(0x4ed8aa4ae3418acb), - UINT64_C(0x5b9cca4f7763e373), UINT64_C(0x682e6ff3d6b2b8a3), - UINT64_C(0x748f82ee5defb2fc), UINT64_C(0x78a5636f43172f60), - UINT64_C(0x84c87814a1f0ab72), UINT64_C(0x8cc702081a6439ec), - UINT64_C(0x90befffa23631e28), UINT64_C(0xa4506cebde82bde9), - UINT64_C(0xbef9a3f7b2c67915), UINT64_C(0xc67178f2e372532b), - UINT64_C(0xca273eceea26619c), UINT64_C(0xd186b8c721c0c207), - UINT64_C(0xeada7dd6cde0eb1e), UINT64_C(0xf57d4f7fee6ed178), - UINT64_C(0x06f067aa72176fba), UINT64_C(0x0a637dc5a2c898a6), - UINT64_C(0x113f9804bef90dae), UINT64_C(0x1b710b35131c471b), - UINT64_C(0x28db77f523047d84), UINT64_C(0x32caab7b40c72493), - UINT64_C(0x3c9ebe0a15c9bebc), UINT64_C(0x431d67c49c100d4c), - UINT64_C(0x4cc5d4becb3e42b6), UINT64_C(0x597f299cfc657e2a), - UINT64_C(0x5fcb6fab3ad6faec), UINT64_C(0x6c44198c4a475817) -}; - -# define CH(x, y, z) (((x) & (y)) ^ (~(x) & (z))) -# define MAJ(x, y, z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) -# define BSIG0(x) (rotr64((x), 28) ^ rotr64((x), 34) ^ rotr64((x), 39)) -# define BSIG1(x) (rotr64((x), 14) ^ rotr64((x), 18) ^ rotr64((x), 41)) -# define SSIG0(x) (rotr64((x), 1) ^ rotr64((x), 8) ^ ((x) >> 7)) -# define SSIG1(x) (rotr64((x), 19) ^ rotr64((x), 61) ^ ((x) >> 6)) - -void cf_sha512_init(cf_sha512_context *ctx) -{ - memset(ctx, 0, sizeof *ctx); - ctx->H[0] = UINT64_C(0x6a09e667f3bcc908); - ctx->H[1] = UINT64_C(0xbb67ae8584caa73b); - ctx->H[2] = UINT64_C(0x3c6ef372fe94f82b); - ctx->H[3] = UINT64_C(0xa54ff53a5f1d36f1); - ctx->H[4] = UINT64_C(0x510e527fade682d1); - ctx->H[5] = UINT64_C(0x9b05688c2b3e6c1f); - ctx->H[6] = UINT64_C(0x1f83d9abfb41bd6b); - ctx->H[7] = UINT64_C(0x5be0cd19137e2179); -} - -void cf_sha384_init(cf_sha512_context *ctx) -{ - memset(ctx, 0, sizeof *ctx); - ctx->H[0] = UINT64_C(0xcbbb9d5dc1059ed8); - ctx->H[1] = UINT64_C(0x629a292a367cd507); - ctx->H[2] = UINT64_C(0x9159015a3070dd17); - ctx->H[3] = UINT64_C(0x152fecd8f70e5939); - ctx->H[4] = UINT64_C(0x67332667ffc00b31); - ctx->H[5] = UINT64_C(0x8eb44a8768581511); - ctx->H[6] = UINT64_C(0xdb0c2e0d64f98fa7); - ctx->H[7] = UINT64_C(0x47b5481dbefa4fa4); -} - -static void sha512_update_block(void *vctx, const uint8_t *inp) -{ - cf_sha512_context *ctx = vctx; - - uint64_t W[16]; - - uint64_t a = ctx->H[0], - b = ctx->H[1], - c = ctx->H[2], - d = ctx->H[3], - e = ctx->H[4], - f = ctx->H[5], - g = ctx->H[6], - h = ctx->H[7], - Wt; - - for (size_t t = 0; t < 80; t++) - { - if (t < 16) - { - W[t] = Wt = read64_be(inp); - inp += 8; - } else { - Wt = SSIG1(W[(t - 2) % 16]) + - W[(t - 7) % 16] + - SSIG0(W[(t - 15) % 16]) + - W[(t - 16) % 16]; - W[t % 16] = Wt; - } - - uint64_t T1 = h + BSIG1(e) + CH(e, f, g) + K[t] + Wt; - uint64_t T2 = BSIG0(a) + MAJ(a, b, c); - h = g; - g = f; - f = e; - e = d + T1; - d = c; - c = b; - b = a; - a = T1 + T2; - } - - ctx->H[0] += a; - ctx->H[1] += b; - ctx->H[2] += c; - ctx->H[3] += d; - ctx->H[4] += e; - ctx->H[5] += f; - ctx->H[6] += g; - ctx->H[7] += h; - - ctx->blocks++; -} - -void cf_sha512_update(cf_sha512_context *ctx, const void *data, size_t nbytes) -{ - cf_blockwise_accumulate(ctx->partial, &ctx->npartial, sizeof ctx->partial, - data, nbytes, - sha512_update_block, ctx); -} - -void cf_sha384_update(cf_sha512_context *ctx, const void *data, size_t nbytes) -{ - cf_sha512_update(ctx, data, nbytes); -} - -void cf_sha512_digest(const cf_sha512_context *ctx, uint8_t hash[CF_SHA512_HASHSZ]) -{ - /* We copy the context, so the finalisation doesn't effect the caller's - * context. This means the caller can do: - * - * x = init() - * x.update('hello') - * h1 = x.digest() - * x.update(' world') - * h2 = x.digest() - * - * to get h1 = H('hello') and h2 = H('hello world') - * - * This wouldn't work if we applied MD-padding to *ctx. - */ - - cf_sha512_context ours = *ctx; - cf_sha512_digest_final(&ours, hash); -} - -void cf_sha512_digest_final(cf_sha512_context *ctx, uint8_t hash[CF_SHA512_HASHSZ]) -{ - uint64_t digested_bytes = ctx->blocks; - digested_bytes = digested_bytes * CF_SHA512_BLOCKSZ + ctx->npartial; - uint64_t digested_bits = digested_bytes * 8; - - size_t padbytes = CF_SHA512_BLOCKSZ - ((digested_bytes + 16) % CF_SHA512_BLOCKSZ); - - /* Hash 0x80 00 ... block first. */ - cf_blockwise_acc_pad(ctx->partial, &ctx->npartial, sizeof ctx->partial, - 0x80, 0x00, 0x00, padbytes, - sha512_update_block, ctx); - - /* Now hash length (this is 128 bits long). */ - uint8_t buf[8]; - write64_be(0, buf); - cf_sha512_update(ctx, buf, 8); - write64_be(digested_bits, buf); - cf_sha512_update(ctx, buf, 8); - - /* We ought to have got our padding calculation right! */ - assert(ctx->npartial == 0); - - write64_be(ctx->H[0], hash + 0); - write64_be(ctx->H[1], hash + 8); - write64_be(ctx->H[2], hash + 16); - write64_be(ctx->H[3], hash + 24); - write64_be(ctx->H[4], hash + 32); - write64_be(ctx->H[5], hash + 40); - write64_be(ctx->H[6], hash + 48); - write64_be(ctx->H[7], hash + 56); - memset(ctx, 0, sizeof *ctx); -} - -void cf_sha384_digest(const cf_sha512_context *ctx, uint8_t hash[CF_SHA384_HASHSZ]) -{ - uint8_t full[CF_SHA512_HASHSZ]; - cf_sha512_digest(ctx, full); - memcpy(hash, full, CF_SHA384_HASHSZ); -} - -void cf_sha384_digest_final(cf_sha512_context *ctx, uint8_t hash[CF_SHA384_HASHSZ]) -{ - uint8_t full[CF_SHA512_HASHSZ]; - cf_sha512_digest_final(ctx, full); - memcpy(hash, full, CF_SHA384_HASHSZ); -} - -const cf_chash cf_sha384 = { - .hashsz = CF_SHA384_HASHSZ, - .blocksz = CF_SHA384_BLOCKSZ, - .init = (cf_chash_init) cf_sha384_init, - .update = (cf_chash_update) cf_sha384_update, - .digest = (cf_chash_digest) cf_sha384_digest -}; - -const cf_chash cf_sha512 = { - .hashsz = CF_SHA512_HASHSZ, - .blocksz = CF_SHA512_BLOCKSZ, - .init = (cf_chash_init) cf_sha512_init, - .update = (cf_chash_update) cf_sha512_update, - .digest = (cf_chash_digest) cf_sha512_digest -}; - |