// license:LGPL-2.1+ // copyright-holders:Peter Gutmann, Andrew Kuchling, Niels Moeller /* sha1.h * * The sha1 hash function. */ /* nettle, low-level cryptographics library * * Copyright 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_t digest[_SHA1_DIGEST_LENGTH]; /* Message digest */ uint32_t count_low, count_high; /* 64-bit block count */ uint8_t 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_t *data); void sha1_final(struct sha1_ctx *ctx); void sha1_digest(const struct sha1_ctx *ctx, unsigned length, uint8_t *digest); #endif /* NETTLE_SHA1_H_INCLUDED */