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Diffstat (limited to 'hmac.h')
-rw-r--r-- | hmac.h | 37 |
1 files changed, 37 insertions, 0 deletions
@@ -0,0 +1,37 @@ | |||
1 | /* $OpenBSD: hmac.h,v 1.6 2014/01/27 18:58:14 markus Exp $ */ | ||
2 | /* | ||
3 | * Copyright (c) 2014 Markus Friedl. All rights reserved. | ||
4 | * | ||
5 | * Permission to use, copy, modify, and distribute this software for any | ||
6 | * purpose with or without fee is hereby granted, provided that the above | ||
7 | * copyright notice and this permission notice appear in all copies. | ||
8 | * | ||
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | ||
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | ||
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | ||
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | ||
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | ||
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | ||
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | ||
16 | */ | ||
17 | |||
18 | #ifndef _HMAC_H | ||
19 | #define _HMAC_H | ||
20 | |||
21 | /* Returns the algorithm's digest length in bytes or 0 for invalid algorithm */ | ||
22 | size_t ssh_hmac_bytes(int alg); | ||
23 | |||
24 | struct ssh_hmac_ctx; | ||
25 | struct ssh_hmac_ctx *ssh_hmac_start(int alg); | ||
26 | |||
27 | /* Sets the state of the HMAC or resets the state if key == NULL */ | ||
28 | int ssh_hmac_init(struct ssh_hmac_ctx *ctx, const void *key, size_t klen) | ||
29 | __attribute__((__bounded__(__buffer__, 2, 3))); | ||
30 | int ssh_hmac_update(struct ssh_hmac_ctx *ctx, const void *m, size_t mlen) | ||
31 | __attribute__((__bounded__(__buffer__, 2, 3))); | ||
32 | int ssh_hmac_update_buffer(struct ssh_hmac_ctx *ctx, const Buffer *b); | ||
33 | int ssh_hmac_final(struct ssh_hmac_ctx *ctx, u_char *d, size_t dlen) | ||
34 | __attribute__((__bounded__(__buffer__, 2, 3))); | ||
35 | void ssh_hmac_free(struct ssh_hmac_ctx *ctx); | ||
36 | |||
37 | #endif /* _HMAC_H */ | ||