Annotation of src/usr.bin/ssh/hmac.h, Revision 1.7
1.7 ! djm 1: /* $OpenBSD: hmac.h,v 1.6 2014/01/27 18:58:14 markus Exp $ */
1.2 deraadt 2: /*
1.6 markus 3: * Copyright (c) 2014 Markus Friedl. All rights reserved.
1.2 deraadt 4: *
1.6 markus 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.
1.2 deraadt 8: *
1.6 markus 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.
1.2 deraadt 16: */
1.1 markus 17:
1.6 markus 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)
1.7 ! djm 29: __bounded((__buffer__, 2, 3));
1.6 markus 30: int ssh_hmac_update(struct ssh_hmac_ctx *ctx, const void *m, size_t mlen)
1.7 ! djm 31: __bounded((__buffer__, 2, 3));
1.6 markus 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)
1.7 ! djm 34: __bounded((__buffer__, 2, 3));
1.6 markus 35: void ssh_hmac_free(struct ssh_hmac_ctx *ctx);
1.1 markus 36:
1.6 markus 37: #endif /* _HMAC_H */