Samba Patch - Denial of service - CPU loop and memory allocation.
[tomato.git] / release / src / router / nettle / hmac-sha256.c
blob6a59266071600f4db9620d71374045a1cf346b1a
1 /* hmac-sha256.c
3 * HMAC-SHA256 message authentication code.
4 */
6 /* nettle, low-level cryptographics library
8 * Copyright (C) 2003 Niels Möller
9 *
10 * The nettle library is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 of the License, or (at your
13 * option) any later version.
15 * The nettle library is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
17 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
18 * License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with the nettle library; see the file COPYING.LIB. If not, write to
22 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
23 * MA 02111-1301, USA.
26 #if HAVE_CONFIG_H
27 # include "config.h"
28 #endif
30 #include "hmac.h"
32 void
33 hmac_sha256_set_key(struct hmac_sha256_ctx *ctx,
34 unsigned key_length, const uint8_t *key)
36 HMAC_SET_KEY(ctx, &nettle_sha256, key_length, key);
39 void
40 hmac_sha256_update(struct hmac_sha256_ctx *ctx,
41 unsigned length, const uint8_t *data)
43 sha256_update(&ctx->state, length, data);
46 void
47 hmac_sha256_digest(struct hmac_sha256_ctx *ctx,
48 unsigned length, uint8_t *digest)
50 HMAC_DIGEST(ctx, &nettle_sha256, length, digest);