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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* hmac-sha256.c
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HMAC-SHA256 message authentication code.
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Copyright (C) 2003 Niels Möller
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This file is part of GNU Nettle.
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GNU Nettle is free software: you can redistribute it and/or
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modify it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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or both in parallel, as here.
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GNU Nettle is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see http://www.gnu.org/licenses/.
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*/
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#if HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "hmac.h"
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void
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hmac_sha256_set_key(struct hmac_sha256_ctx *ctx,
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size_t key_length, const uint8_t *key)
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{
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HMAC_SET_KEY(ctx, &nettle_sha256, key_length, key);
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}
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void
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hmac_sha256_update(struct hmac_sha256_ctx *ctx,
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size_t length, const uint8_t *data)
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{
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sha256_update(&ctx->state, length, data);
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}
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void
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hmac_sha256_digest(struct hmac_sha256_ctx *ctx,
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size_t length, uint8_t *digest)
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{
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HMAC_DIGEST(ctx, &nettle_sha256, length, digest);
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}
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