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Diffstat (limited to 'sbin/isakmpd/hash.h')
| -rw-r--r-- | sbin/isakmpd/hash.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sbin/isakmpd/hash.h b/sbin/isakmpd/hash.h new file mode 100644 index 00000000000..2bd8c4ee046 --- /dev/null +++ b/sbin/isakmpd/hash.h @@ -0,0 +1,74 @@ +/* $Id: hash.h,v 1.1 1998/11/15 00:03:48 niklas Exp $ */ + +/* + * Copyright (c) 1998 Niels Provos. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Ericsson Radio Systems. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * This code was written under funding by Ericsson Radio Systems. + */ + +#ifndef _HASH_H_ +#define _HASH_H_ + +/* Normal mode hash encapsulation */ + +#define MD5_SIZE 16 +#define SHA1_SIZE 20 +#define HASH_MAX SHA1_SIZE + +enum hashes { + HASH_MD5 = 0, + HASH_SHA1 +}; + +struct hash { + enum hashes type; + int id; /* ISAKMP/Oakley ID */ + u_int8_t hashsize; /* Size of the hash */ + void *ctx; /* Pointer to a context, for HMAC ictx */ + char *digest; /* Pointer to a digest */ + int ctxsize; + void *ctx2; /* Pointer to a 2nd context, for HMAC octx */ + void (*Init) (void *); + void (*Update) (void *, unsigned char *, unsigned int); + void (*Final) (unsigned char *, void *); + void (*HMACInit) (struct hash *, unsigned char *, int); + void (*HMACFinal) (unsigned char *, struct hash *); +}; + +/* HMAC Hash Encapsulation */ + +#define HMAC_IPAD_VAL 0x36 +#define HMAC_OPAD_VAL 0x5C +#define HMAC_BLOCKLEN 64 + +extern struct hash *hash_get (enum hashes); +extern void hmac_init (struct hash *, unsigned char *, int); + +#endif /* _HASH_H_ */ |