From 4e8d937af79ce4e253f77ec93489d098b25becc3 Mon Sep 17 00:00:00 2001 From: Damien Miller Date: Tue, 4 Feb 2014 11:02:42 +1100 Subject: - markus@cvs.openbsd.org 2014/01/27 18:58:14 [Makefile.in digest.c digest.h hostfile.c kex.h mac.c hmac.c hmac.h] replace openssl HMAC with an implementation based on our ssh_digest_* ok and feedback djm@ --- hmac.h | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 hmac.h (limited to 'hmac.h') diff --git a/hmac.h b/hmac.h new file mode 100644 index 00000000..2374a695 --- /dev/null +++ b/hmac.h @@ -0,0 +1,37 @@ +/* $OpenBSD: hmac.h,v 1.6 2014/01/27 18:58:14 markus Exp $ */ +/* + * Copyright (c) 2014 Markus Friedl. All rights reserved. + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef _HMAC_H +#define _HMAC_H + +/* Returns the algorithm's digest length in bytes or 0 for invalid algorithm */ +size_t ssh_hmac_bytes(int alg); + +struct ssh_hmac_ctx; +struct ssh_hmac_ctx *ssh_hmac_start(int alg); + +/* Sets the state of the HMAC or resets the state if key == NULL */ +int ssh_hmac_init(struct ssh_hmac_ctx *ctx, const void *key, size_t klen) + __attribute__((__bounded__(__buffer__, 2, 3))); +int ssh_hmac_update(struct ssh_hmac_ctx *ctx, const void *m, size_t mlen) + __attribute__((__bounded__(__buffer__, 2, 3))); +int ssh_hmac_update_buffer(struct ssh_hmac_ctx *ctx, const Buffer *b); +int ssh_hmac_final(struct ssh_hmac_ctx *ctx, u_char *d, size_t dlen) + __attribute__((__bounded__(__buffer__, 2, 3))); +void ssh_hmac_free(struct ssh_hmac_ctx *ctx); + +#endif /* _HMAC_H */ -- cgit v1.2.1