42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/* $OpenBSD: cmac.h,v 1.3 2017/05/02 17:07:06 mikeb Exp $ */
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/*-
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* Copyright (c) 2008 Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _CMAC_H_
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#define _CMAC_H_
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#define AES_CMAC_KEY_LENGTH 16
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#define AES_CMAC_DIGEST_LENGTH 16
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typedef struct _AES_CMAC_CTX {
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AES_CTX aesctx;
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u_int8_t X[16];
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u_int8_t M_last[16];
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u_int M_n;
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} AES_CMAC_CTX;
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__BEGIN_DECLS
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void AES_CMAC_Init(AES_CMAC_CTX *);
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void AES_CMAC_SetKey(AES_CMAC_CTX *, const u_int8_t [AES_CMAC_KEY_LENGTH]);
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void AES_CMAC_Update(AES_CMAC_CTX *, const u_int8_t *, u_int)
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__attribute__((__bounded__(__string__,2,3)));
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void AES_CMAC_Final(u_int8_t [AES_CMAC_DIGEST_LENGTH], AES_CMAC_CTX *)
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__attribute__((__bounded__(__minbytes__,1,AES_CMAC_DIGEST_LENGTH)));
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__END_DECLS
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#endif /* _CMAC_H_ */
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