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      1 /*	$NetBSD: aes_impl.h,v 1.2 2020/07/25 22:27:53 riastradh Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2020 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef	_CRYPTO_AES_AES_IMPL_H
     30 #define	_CRYPTO_AES_AES_IMPL_H
     31 
     32 #include <sys/types.h>
     33 
     34 struct aesenc;
     35 struct aesdec;
     36 
     37 struct aes_impl {
     38 	const char *ai_name;
     39 	int	(*ai_probe)(void);
     40 	void	(*ai_setenckey)(struct aesenc *, const uint8_t *, uint32_t);
     41 	void	(*ai_setdeckey)(struct aesdec *, const uint8_t *, uint32_t);
     42 	void	(*ai_enc)(const struct aesenc *, const uint8_t[static 16],
     43 		    uint8_t[static 16], uint32_t);
     44 	void	(*ai_dec)(const struct aesdec *, const uint8_t[static 16],
     45 		    uint8_t[static 16], uint32_t);
     46 	void	(*ai_cbc_enc)(const struct aesenc *, const uint8_t[static 16],
     47 		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     48 	void	(*ai_cbc_dec)(const struct aesdec *, const uint8_t[static 16],
     49 		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     50 	void	(*ai_xts_enc)(const struct aesenc *, const uint8_t[static 16],
     51 		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     52 	void	(*ai_xts_dec)(const struct aesdec *, const uint8_t[static 16],
     53 		    uint8_t[static 16], size_t, uint8_t[static 16], uint32_t);
     54 	void	(*ai_cbcmac_update1)(const struct aesenc *,
     55 		    const uint8_t[static 16], size_t, uint8_t[static 16],
     56 		    uint32_t);
     57 	void	(*ai_ccm_enc1)(const struct aesenc *,
     58 		    const uint8_t[static 16], uint8_t[static 16],
     59 		    size_t, uint8_t[static 32], uint32_t);
     60 	void	(*ai_ccm_dec1)(const struct aesenc *,
     61 		    const uint8_t[static 16], uint8_t[static 16],
     62 		    size_t, uint8_t[static 32], uint32_t);
     63 };
     64 
     65 void	aes_md_init(const struct aes_impl *);
     66 
     67 int	aes_selftest(const struct aes_impl *);
     68 
     69 /* Internal subroutines dispatched to implementation for AES-CCM.  */
     70 void	aes_cbcmac_update1(const struct aesenc *, const uint8_t[static 16],
     71 	    size_t, uint8_t[static 16], uint32_t);
     72 void	aes_ccm_enc1(const struct aesenc *, const uint8_t[static 16],
     73 	    uint8_t[static 16], size_t, uint8_t[static 32], uint32_t);
     74 void	aes_ccm_dec1(const struct aesenc *, const uint8_t[static 16],
     75 	    uint8_t[static 16], size_t, uint8_t[static 32], uint32_t);
     76 
     77 #endif	/* _CRYPTO_AES_AES_IMPL_H */
     78