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Diffstat (limited to 'src/lib/util/sha1.h')
-rw-r--r-- | src/lib/util/sha1.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/lib/util/sha1.h b/src/lib/util/sha1.h new file mode 100644 index 00000000000..8f9d9cdd835 --- /dev/null +++ b/src/lib/util/sha1.h @@ -0,0 +1,61 @@ +/* sha1.h + * + * The sha1 hash function. + */ + +/* nettle, low-level cryptographics library + * + * Copyright (C) 2001 Niels Moeller + * + * The nettle library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 2.1 of the License, or (at your + * option) any later version. + * + * The nettle library 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 Lesser General Public + * License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with the nettle library; see the file COPYING.LIB. If not, write to + * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, + * MA 02111-1307, USA. + */ + +#ifndef NETTLE_SHA1_H_INCLUDED +#define NETTLE_SHA1_H_INCLUDED + +#include "osdcore.h" + +#define SHA1_DIGEST_SIZE 20 +#define SHA1_DATA_SIZE 64 + +/* Digest is kept internally as 4 32-bit words. */ +#define _SHA1_DIGEST_LENGTH 5 + +struct sha1_ctx +{ + UINT32 digest[_SHA1_DIGEST_LENGTH]; /* Message digest */ + UINT32 count_low, count_high; /* 64-bit block count */ + UINT8 block[SHA1_DATA_SIZE]; /* SHA1 data buffer */ + unsigned int index; /* index into buffer */ +}; + +void +sha1_init(struct sha1_ctx *ctx); + +void +sha1_update(struct sha1_ctx *ctx, + unsigned length, + const UINT8 *data); + +void +sha1_final(struct sha1_ctx *ctx); + +void +sha1_digest(const struct sha1_ctx *ctx, + unsigned length, + UINT8 *digest); + +#endif /* NETTLE_SHA1_H_INCLUDED */ |