45 lines
1.7 KiB
C
45 lines
1.7 KiB
C
/*
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digest.h -- header file digest.c
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Copyright (C) 2007-2009 Guus Sliepen <guus@tinc-vpn.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __TINC_DIGEST_H__
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#define __TINC_DIGEST_H__
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#include <gcrypt.h>
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#define DIGEST_MAX_SIZE 64
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typedef struct digest {
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int algo;
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int nid;
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int maclength;
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gcry_md_hd_t hmac;
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} digest_t;
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extern bool digest_open_by_name(struct digest *, const char *name, int maclength);
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extern bool digest_open_by_nid(struct digest *, int nid, int maclength);
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extern bool digest_open_sha1(struct digest *, int maclength);
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extern void digest_close(struct digest *);
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extern bool digest_create(struct digest *, const void *indata, size_t inlen, void *outdata);
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extern bool digest_verify(struct digest *, const void *indata, size_t inlen, const void *digestdata);
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extern bool digest_set_key(struct digest *, const void *key, size_t len);
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extern int digest_get_nid(const struct digest *);
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extern size_t digest_length(const struct digest *);
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extern bool digest_active(const struct digest *);
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#endif
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