585 lines
17 KiB
C
585 lines
17 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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/*
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BLAKE2 reference source code package - reference C implementations
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Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
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terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
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your option. The terms of these licenses can be found at:
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- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
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- OpenSSL license : https://www.openssl.org/source/license.html
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- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
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More information about the BLAKE2 hash function can be found at
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https://blake2.net.
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*/
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/* see also https://www.ietf.org/rfc/rfc7693.txt */
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#include "tomcrypt.h"
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#ifdef LTC_BLAKE2B
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enum blake2b_constant {
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BLAKE2B_BLOCKBYTES = 128,
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BLAKE2B_OUTBYTES = 64,
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BLAKE2B_KEYBYTES = 64,
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BLAKE2B_SALTBYTES = 16,
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BLAKE2B_PERSONALBYTES = 16,
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BLAKE2B_PARAM_SIZE = 64
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};
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/* param offsets */
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enum {
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O_DIGEST_LENGTH = 0,
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O_KEY_LENGTH = 1,
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O_FANOUT = 2,
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O_DEPTH = 3,
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O_LEAF_LENGTH = 4,
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O_NODE_OFFSET = 8,
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O_XOF_LENGTH = 12,
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O_NODE_DEPTH = 16,
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O_INNER_LENGTH = 17,
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O_RESERVED = 18,
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O_SALT = 32,
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O_PERSONAL = 48
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};
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/*
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struct blake2b_param {
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unsigned char digest_length;
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unsigned char key_length;
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unsigned char fanout;
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unsigned char depth;
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ulong32 leaf_length;
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ulong32 node_offset;
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ulong32 xof_length;
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unsigned char node_depth;
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unsigned char inner_length;
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unsigned char reserved[14];
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unsigned char salt[BLAKE2B_SALTBYTES];
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unsigned char personal[BLAKE2B_PERSONALBYTES];
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};
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*/
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const struct ltc_hash_descriptor blake2b_160_desc =
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{
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"blake2b-160",
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25,
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20,
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128,
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{ 1, 3, 6, 1, 4, 1, 1722, 12, 2, 1, 5 },
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11,
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&blake2b_160_init,
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&blake2b_process,
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&blake2b_done,
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&blake2b_160_test,
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NULL
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};
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const struct ltc_hash_descriptor blake2b_256_desc =
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{
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"blake2b-256",
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26,
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32,
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128,
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{ 1, 3, 6, 1, 4, 1, 1722, 12, 2, 1, 8 },
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11,
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&blake2b_256_init,
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&blake2b_process,
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&blake2b_done,
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&blake2b_256_test,
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NULL
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};
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const struct ltc_hash_descriptor blake2b_384_desc =
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{
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"blake2b-384",
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27,
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48,
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128,
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{ 1, 3, 6, 1, 4, 1, 1722, 12, 2, 1, 12 },
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11,
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&blake2b_384_init,
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&blake2b_process,
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&blake2b_done,
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&blake2b_384_test,
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NULL
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};
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const struct ltc_hash_descriptor blake2b_512_desc =
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{
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"blake2b-512",
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28,
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64,
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128,
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{ 1, 3, 6, 1, 4, 1, 1722, 12, 2, 1, 16 },
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11,
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&blake2b_512_init,
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&blake2b_process,
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&blake2b_done,
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&blake2b_512_test,
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NULL
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};
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static const ulong64 blake2b_IV[8] =
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{
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CONST64(0x6a09e667f3bcc908), CONST64(0xbb67ae8584caa73b),
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CONST64(0x3c6ef372fe94f82b), CONST64(0xa54ff53a5f1d36f1),
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CONST64(0x510e527fade682d1), CONST64(0x9b05688c2b3e6c1f),
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CONST64(0x1f83d9abfb41bd6b), CONST64(0x5be0cd19137e2179)
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};
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static const unsigned char blake2b_sigma[12][16] =
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{
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
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{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 } ,
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{ 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 } ,
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{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 } ,
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{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 } ,
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{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 } ,
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{ 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 } ,
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{ 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 } ,
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{ 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 } ,
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{ 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 } ,
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
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{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }
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};
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static void blake2b_set_lastnode(hash_state *md) { md->blake2b.f[1] = CONST64(0xffffffffffffffff); }
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/* Some helper functions, not necessarily useful */
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static int blake2b_is_lastblock(const hash_state *md) { return md->blake2b.f[0] != 0; }
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static void blake2b_set_lastblock(hash_state *md)
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{
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if (md->blake2b.last_node)
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blake2b_set_lastnode(md);
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md->blake2b.f[0] = CONST64(0xffffffffffffffff);
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}
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static void blake2b_increment_counter(hash_state *md, ulong64 inc)
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{
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md->blake2b.t[0] += inc;
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if (md->blake2b.t[0] < inc) md->blake2b.t[1]++;
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}
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static void blake2b_init0(hash_state *md)
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{
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unsigned long i;
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XMEMSET(&md->blake2b, 0, sizeof(md->blake2b));
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for (i = 0; i < 8; ++i)
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md->blake2b.h[i] = blake2b_IV[i];
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}
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/* init xors IV with input parameter block */
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static int blake2b_init_param(hash_state *md, const unsigned char *P)
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{
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unsigned long i;
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blake2b_init0(md);
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/* IV XOR ParamBlock */
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for (i = 0; i < 8; ++i) {
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ulong64 tmp;
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LOAD64L(tmp, P + i * 8);
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md->blake2b.h[i] ^= tmp;
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}
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md->blake2b.outlen = P[O_DIGEST_LENGTH];
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return CRYPT_OK;
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}
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int blake2b_init(hash_state *md, unsigned long outlen, const unsigned char *key, unsigned long keylen)
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{
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unsigned char P[BLAKE2B_PARAM_SIZE];
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int err;
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LTC_ARGCHK(md != NULL);
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if ((!outlen) || (outlen > BLAKE2B_OUTBYTES))
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return CRYPT_INVALID_ARG;
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if ((key && !keylen) || (keylen && !key) || (keylen > BLAKE2B_KEYBYTES))
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return CRYPT_INVALID_ARG;
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XMEMSET(P, 0, sizeof(P));
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P[O_DIGEST_LENGTH] = (unsigned char)outlen;
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P[O_KEY_LENGTH] = (unsigned char)keylen;
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P[O_FANOUT] = 1;
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P[O_DEPTH] = 1;
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err = blake2b_init_param(md, P);
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if (err != CRYPT_OK) return err;
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if (key) {
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unsigned char block[BLAKE2B_BLOCKBYTES];
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XMEMSET(block, 0, BLAKE2B_BLOCKBYTES);
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XMEMCPY(block, key, keylen);
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blake2b_process(md, block, BLAKE2B_BLOCKBYTES);
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#ifdef LTC_CLEAN_STACK
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zeromem(block, sizeof(block));
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#endif
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}
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return CRYPT_OK;
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}
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int blake2b_160_init(hash_state *md) { return blake2b_init(md, 20, NULL, 0); }
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int blake2b_256_init(hash_state *md) { return blake2b_init(md, 32, NULL, 0); }
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int blake2b_384_init(hash_state *md) { return blake2b_init(md, 48, NULL, 0); }
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int blake2b_512_init(hash_state *md) { return blake2b_init(md, 64, NULL, 0); }
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#define G(r, i, a, b, c, d) \
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do { \
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a = a + b + m[blake2b_sigma[r][2 * i + 0]]; \
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d = ROR64(d ^ a, 32); \
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c = c + d; \
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b = ROR64(b ^ c, 24); \
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a = a + b + m[blake2b_sigma[r][2 * i + 1]]; \
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d = ROR64(d ^ a, 16); \
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c = c + d; \
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b = ROR64(b ^ c, 63); \
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} while (0)
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#define ROUND(r) \
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do { \
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G(r, 0, v[0], v[4], v[8], v[12]); \
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G(r, 1, v[1], v[5], v[9], v[13]); \
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G(r, 2, v[2], v[6], v[10], v[14]); \
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G(r, 3, v[3], v[7], v[11], v[15]); \
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G(r, 4, v[0], v[5], v[10], v[15]); \
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G(r, 5, v[1], v[6], v[11], v[12]); \
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G(r, 6, v[2], v[7], v[8], v[13]); \
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G(r, 7, v[3], v[4], v[9], v[14]); \
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} while (0)
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#ifdef LTC_CLEAN_STACK
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static int _blake2b_compress(hash_state *md, const unsigned char *buf)
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#else
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static int blake2b_compress(hash_state *md, const unsigned char *buf)
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#endif
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{
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ulong64 m[16];
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ulong64 v[16];
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unsigned long i;
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for (i = 0; i < 16; ++i) {
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LOAD64L(m[i], buf + i * sizeof(m[i]));
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}
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for (i = 0; i < 8; ++i) {
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v[i] = md->blake2b.h[i];
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}
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v[8] = blake2b_IV[0];
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v[9] = blake2b_IV[1];
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v[10] = blake2b_IV[2];
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v[11] = blake2b_IV[3];
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v[12] = blake2b_IV[4] ^ md->blake2b.t[0];
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v[13] = blake2b_IV[5] ^ md->blake2b.t[1];
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v[14] = blake2b_IV[6] ^ md->blake2b.f[0];
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v[15] = blake2b_IV[7] ^ md->blake2b.f[1];
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ROUND(0);
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ROUND(1);
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ROUND(2);
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ROUND(3);
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ROUND(4);
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ROUND(5);
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ROUND(6);
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ROUND(7);
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ROUND(8);
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ROUND(9);
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ROUND(10);
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ROUND(11);
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for (i = 0; i < 8; ++i) {
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md->blake2b.h[i] = md->blake2b.h[i] ^ v[i] ^ v[i + 8];
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}
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return CRYPT_OK;
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}
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#undef G
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#undef ROUND
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#ifdef LTC_CLEAN_STACK
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static int blake2b_compress(hash_state *md, const unsigned char *buf)
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{
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int err;
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err = _blake2b_compress(md, buf);
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burn_stack(sizeof(ulong64) * 32 + sizeof(unsigned long));
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return err;
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}
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#endif
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int blake2b_process(hash_state *md, const unsigned char *in, unsigned long inlen)
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{
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LTC_ARGCHK(md != NULL);
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LTC_ARGCHK(in != NULL);
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if (md->blake2b.curlen > sizeof(md->blake2b.buf)) {
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return CRYPT_INVALID_ARG;
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}
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if (inlen > 0) {
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unsigned long left = md->blake2b.curlen;
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unsigned long fill = BLAKE2B_BLOCKBYTES - left;
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if (inlen > fill) {
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md->blake2b.curlen = 0;
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XMEMCPY(md->blake2b.buf + left, in, fill); /* Fill buffer */
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blake2b_increment_counter(md, BLAKE2B_BLOCKBYTES);
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blake2b_compress(md, md->blake2b.buf); /* Compress */
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in += fill;
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inlen -= fill;
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while (inlen > BLAKE2B_BLOCKBYTES) {
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blake2b_increment_counter(md, BLAKE2B_BLOCKBYTES);
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blake2b_compress(md, in);
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in += BLAKE2B_BLOCKBYTES;
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inlen -= BLAKE2B_BLOCKBYTES;
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}
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}
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XMEMCPY(md->blake2b.buf + md->blake2b.curlen, in, inlen);
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md->blake2b.curlen += inlen;
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}
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return CRYPT_OK;
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}
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int blake2b_done(hash_state *md, unsigned char *out)
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{
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unsigned char buffer[BLAKE2B_OUTBYTES] = { 0 };
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unsigned long i;
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LTC_ARGCHK(md != NULL);
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LTC_ARGCHK(out != NULL);
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/* if(md->blakebs.outlen != outlen) return CRYPT_INVALID_ARG; */
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if (blake2b_is_lastblock(md))
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return CRYPT_ERROR;
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blake2b_increment_counter(md, md->blake2b.curlen);
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blake2b_set_lastblock(md);
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XMEMSET(md->blake2b.buf + md->blake2b.curlen, 0, BLAKE2B_BLOCKBYTES - md->blake2b.curlen); /* Padding */
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blake2b_compress(md, md->blake2b.buf);
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for (i = 0; i < 8; ++i) /* Output full hash to temp buffer */
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STORE64L(md->blake2b.h[i], buffer + i * 8);
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XMEMCPY(out, buffer, md->blake2b.outlen);
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zeromem(md, sizeof(hash_state));
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#ifdef LTC_CLEAN_STACK
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zeromem(buffer, sizeof(buffer));
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#endif
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return CRYPT_OK;
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}
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/**
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Self-test the hash
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@return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
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*/
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int blake2b_512_test(void)
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{
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#ifndef LTC_TEST
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return CRYPT_NOP;
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#else
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static const struct {
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char *msg;
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unsigned char hash[64];
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} tests[] = {
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{ "",
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{ 0x78, 0x6a, 0x02, 0xf7, 0x42, 0x01, 0x59, 0x03,
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0xc6, 0xc6, 0xfd, 0x85, 0x25, 0x52, 0xd2, 0x72,
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0x91, 0x2f, 0x47, 0x40, 0xe1, 0x58, 0x47, 0x61,
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0x8a, 0x86, 0xe2, 0x17, 0xf7, 0x1f, 0x54, 0x19,
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0xd2, 0x5e, 0x10, 0x31, 0xaf, 0xee, 0x58, 0x53,
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0x13, 0x89, 0x64, 0x44, 0x93, 0x4e, 0xb0, 0x4b,
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0x90, 0x3a, 0x68, 0x5b, 0x14, 0x48, 0xb7, 0x55,
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0xd5, 0x6f, 0x70, 0x1a, 0xfe, 0x9b, 0xe2, 0xce } },
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{ "abc",
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{ 0xba, 0x80, 0xa5, 0x3f, 0x98, 0x1c, 0x4d, 0x0d,
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0x6a, 0x27, 0x97, 0xb6, 0x9f, 0x12, 0xf6, 0xe9,
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0x4c, 0x21, 0x2f, 0x14, 0x68, 0x5a, 0xc4, 0xb7,
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0x4b, 0x12, 0xbb, 0x6f, 0xdb, 0xff, 0xa2, 0xd1,
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0x7d, 0x87, 0xc5, 0x39, 0x2a, 0xab, 0x79, 0x2d,
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0xc2, 0x52, 0xd5, 0xde, 0x45, 0x33, 0xcc, 0x95,
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0x18, 0xd3, 0x8a, 0xa8, 0xdb, 0xf1, 0x92, 0x5a,
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0xb9, 0x23, 0x86, 0xed, 0xd4, 0x00, 0x99, 0x23 } },
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{ NULL, { 0 } }
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};
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int i;
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unsigned char tmp[64];
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hash_state md;
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for (i = 0; tests[i].msg != NULL; i++) {
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blake2b_512_init(&md);
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blake2b_process(&md, (unsigned char *)tests[i].msg, (unsigned long)strlen(tests[i].msg));
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blake2b_done(&md, tmp);
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if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "BLAKE2B_512", i)) {
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return CRYPT_FAIL_TESTVECTOR;
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}
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}
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return CRYPT_OK;
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#endif
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}
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/**
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Self-test the hash
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@return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
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*/
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int blake2b_384_test(void)
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{
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#ifndef LTC_TEST
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return CRYPT_NOP;
|
|
#else
|
|
static const struct {
|
|
char *msg;
|
|
unsigned char hash[48];
|
|
} tests[] = {
|
|
{ "",
|
|
{ 0xb3, 0x28, 0x11, 0x42, 0x33, 0x77, 0xf5, 0x2d,
|
|
0x78, 0x62, 0x28, 0x6e, 0xe1, 0xa7, 0x2e, 0xe5,
|
|
0x40, 0x52, 0x43, 0x80, 0xfd, 0xa1, 0x72, 0x4a,
|
|
0x6f, 0x25, 0xd7, 0x97, 0x8c, 0x6f, 0xd3, 0x24,
|
|
0x4a, 0x6c, 0xaf, 0x04, 0x98, 0x81, 0x26, 0x73,
|
|
0xc5, 0xe0, 0x5e, 0xf5, 0x83, 0x82, 0x51, 0x00 } },
|
|
{ "abc",
|
|
{ 0x6f, 0x56, 0xa8, 0x2c, 0x8e, 0x7e, 0xf5, 0x26,
|
|
0xdf, 0xe1, 0x82, 0xeb, 0x52, 0x12, 0xf7, 0xdb,
|
|
0x9d, 0xf1, 0x31, 0x7e, 0x57, 0x81, 0x5d, 0xbd,
|
|
0xa4, 0x60, 0x83, 0xfc, 0x30, 0xf5, 0x4e, 0xe6,
|
|
0xc6, 0x6b, 0xa8, 0x3b, 0xe6, 0x4b, 0x30, 0x2d,
|
|
0x7c, 0xba, 0x6c, 0xe1, 0x5b, 0xb5, 0x56, 0xf4 } },
|
|
|
|
{ NULL, { 0 } }
|
|
};
|
|
|
|
int i;
|
|
unsigned char tmp[48];
|
|
hash_state md;
|
|
|
|
for (i = 0; tests[i].msg != NULL; i++) {
|
|
blake2b_384_init(&md);
|
|
blake2b_process(&md, (unsigned char *)tests[i].msg, (unsigned long)strlen(tests[i].msg));
|
|
blake2b_done(&md, tmp);
|
|
if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "BLAKE2B_384", i)) {
|
|
return CRYPT_FAIL_TESTVECTOR;
|
|
}
|
|
}
|
|
return CRYPT_OK;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
Self-test the hash
|
|
@return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
|
|
*/
|
|
int blake2b_256_test(void)
|
|
{
|
|
#ifndef LTC_TEST
|
|
return CRYPT_NOP;
|
|
#else
|
|
static const struct {
|
|
char *msg;
|
|
unsigned char hash[32];
|
|
} tests[] = {
|
|
{ "",
|
|
{ 0x0e, 0x57, 0x51, 0xc0, 0x26, 0xe5, 0x43, 0xb2,
|
|
0xe8, 0xab, 0x2e, 0xb0, 0x60, 0x99, 0xda, 0xa1,
|
|
0xd1, 0xe5, 0xdf, 0x47, 0x77, 0x8f, 0x77, 0x87,
|
|
0xfa, 0xab, 0x45, 0xcd, 0xf1, 0x2f, 0xe3, 0xa8 } },
|
|
{ "abc",
|
|
{ 0xbd, 0xdd, 0x81, 0x3c, 0x63, 0x42, 0x39, 0x72,
|
|
0x31, 0x71, 0xef, 0x3f, 0xee, 0x98, 0x57, 0x9b,
|
|
0x94, 0x96, 0x4e, 0x3b, 0xb1, 0xcb, 0x3e, 0x42,
|
|
0x72, 0x62, 0xc8, 0xc0, 0x68, 0xd5, 0x23, 0x19 } },
|
|
{ "12345678901234567890123456789012345678901234567890"
|
|
"12345678901234567890123456789012345678901234567890"
|
|
"12345678901234567890123456789012345678901234567890"
|
|
"12345678901234567890123456789012345678901234567890"
|
|
"12345678901234567890123456789012345678901234567890"
|
|
"12345678901234567890123456789012345678901234567890",
|
|
{ 0x0f, 0x6e, 0x01, 0x8d, 0x38, 0xd6, 0x3f, 0x08,
|
|
0x4d, 0x58, 0xe3, 0x0c, 0x90, 0xfb, 0xa2, 0x41,
|
|
0x5f, 0xca, 0x17, 0xfa, 0x66, 0x26, 0x49, 0xf3,
|
|
0x8a, 0x30, 0x41, 0x7c, 0x57, 0xcd, 0xa8, 0x14 } },
|
|
|
|
{ NULL, { 0 } }
|
|
};
|
|
|
|
int i;
|
|
unsigned char tmp[32];
|
|
hash_state md;
|
|
|
|
for (i = 0; tests[i].msg != NULL; i++) {
|
|
blake2b_256_init(&md);
|
|
blake2b_process(&md, (unsigned char *)tests[i].msg, (unsigned long)strlen(tests[i].msg));
|
|
blake2b_done(&md, tmp);
|
|
if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "BLAKE2B_256", i)) {
|
|
return CRYPT_FAIL_TESTVECTOR;
|
|
}
|
|
}
|
|
return CRYPT_OK;
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
Self-test the hash
|
|
@return CRYPT_OK if successful, CRYPT_NOP if self-tests have been disabled
|
|
*/
|
|
int blake2b_160_test(void)
|
|
{
|
|
#ifndef LTC_TEST
|
|
return CRYPT_NOP;
|
|
#else
|
|
static const struct {
|
|
char *msg;
|
|
unsigned char hash[20];
|
|
} tests[] = {
|
|
{ "",
|
|
{ 0x33, 0x45, 0x52, 0x4a, 0xbf, 0x6b, 0xbe, 0x18,
|
|
0x09, 0x44, 0x92, 0x24, 0xb5, 0x97, 0x2c, 0x41,
|
|
0x79, 0x0b, 0x6c, 0xf2 } },
|
|
{ "abc",
|
|
{ 0x38, 0x42, 0x64, 0xf6, 0x76, 0xf3, 0x95, 0x36,
|
|
0x84, 0x05, 0x23, 0xf2, 0x84, 0x92, 0x1c, 0xdc,
|
|
0x68, 0xb6, 0x84, 0x6b } },
|
|
|
|
{ NULL, { 0 } }
|
|
};
|
|
|
|
int i;
|
|
unsigned char tmp[20];
|
|
hash_state md;
|
|
|
|
for (i = 0; tests[i].msg != NULL; i++) {
|
|
blake2b_160_init(&md);
|
|
blake2b_process(&md, (unsigned char *)tests[i].msg, (unsigned long)strlen(tests[i].msg));
|
|
blake2b_done(&md, tmp);
|
|
if (compare_testvector(tmp, sizeof(tmp), tests[i].hash, sizeof(tests[i].hash), "BLAKE2B_160", i)) {
|
|
return CRYPT_FAIL_TESTVECTOR;
|
|
}
|
|
}
|
|
return CRYPT_OK;
|
|
#endif
|
|
}
|
|
|
|
#endif
|