1 /* $NetBSD: aes.h,v 1.4 2020/07/25 22:14:35 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_H 30 #define _CRYPTO_AES_AES_H 31 32 #include <sys/types.h> 33 #include <sys/cdefs.h> 34 35 /* 36 * struct aes 37 * 38 * Expanded round keys. 39 */ 40 union aes { 41 uint32_t aes_rk[60]; 42 uint64_t aes_rk64[30]; 43 } __aligned(16); 44 45 #define AES_128_NROUNDS 10 46 #define AES_192_NROUNDS 12 47 #define AES_256_NROUNDS 14 48 49 struct aesenc { 50 union aes aese_aes; 51 }; 52 53 struct aesdec { 54 union aes aesd_aes; 55 }; 56 57 uint32_t aes_setenckey128(struct aesenc *, const uint8_t[static 16]); 58 uint32_t aes_setenckey192(struct aesenc *, const uint8_t[static 24]); 59 uint32_t aes_setenckey256(struct aesenc *, const uint8_t[static 32]); 60 uint32_t aes_setdeckey128(struct aesdec *, const uint8_t[static 16]); 61 uint32_t aes_setdeckey192(struct aesdec *, const uint8_t[static 24]); 62 uint32_t aes_setdeckey256(struct aesdec *, const uint8_t[static 32]); 63 64 void aes_enc(const struct aesenc *, const uint8_t[static 16], 65 uint8_t[static 16], uint32_t); 66 void aes_dec(const struct aesdec *, const uint8_t[static 16], 67 uint8_t[static 16], uint32_t); 68 69 #endif /* _CRYPTO_AES_AES_H */ 70