2 * Copyright (c) 2016 The FreeBSD Foundation
5 * This software was developed by Andrew Turner under
6 * sponsorship from the FreeBSD Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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32 #ifndef _ARMV8_CRYPTO_H_
33 #define _ARMV8_CRYPTO_H_
35 #define AES256_ROUNDS 14
36 #define AES_SCHED_LEN ((AES256_ROUNDS + 1) * AES_BLOCK_LEN)
39 uint32_t aes_key[AES_SCHED_LEN/4];
47 size_t t[16 / sizeof(size_t)];
50 struct armv8_crypto_session {
51 AES_key_t enc_schedule;
52 AES_key_t dec_schedule;
53 AES_key_t xts_schedule;
54 __uint128_val_t Htable[16];
57 /* Prototypes for aesv8-armx.S */
58 void aes_v8_encrypt(uint8_t *in, uint8_t *out, const AES_key_t *key);
59 int aes_v8_set_encrypt_key(const unsigned char *userKey, const int bits, const AES_key_t *key);
60 int aes_v8_set_decrypt_key(const unsigned char *userKey, const int bits, const AES_key_t *key);
62 /* Prototypes for ghashv8-armx.S */
63 void gcm_init_v8(__uint128_val_t Htable[16], const uint64_t Xi[2]);
64 void gcm_gmult_v8(uint64_t Xi[2], const __uint128_val_t Htable[16]);
65 void gcm_ghash_v8(uint64_t Xi[2], const __uint128_val_t Htable[16], const uint8_t *inp, size_t len);
67 void armv8_aes_encrypt_cbc(const AES_key_t *, size_t, const uint8_t *,
68 uint8_t *, const uint8_t[static AES_BLOCK_LEN]);
69 void armv8_aes_decrypt_cbc(const AES_key_t *, size_t, uint8_t *,
70 const uint8_t[static AES_BLOCK_LEN]);
71 void armv8_aes_encrypt_gcm(AES_key_t *, size_t, const uint8_t *,
72 uint8_t *, size_t, const uint8_t*,
73 uint8_t tag[static GMAC_DIGEST_LEN],
74 const uint8_t[static AES_BLOCK_LEN],
75 const __uint128_val_t *);
76 int armv8_aes_decrypt_gcm(AES_key_t *, size_t, const uint8_t *,
77 uint8_t *, size_t, const uint8_t*,
78 const uint8_t tag[static GMAC_DIGEST_LEN],
79 const uint8_t[static AES_BLOCK_LEN],
80 const __uint128_val_t *);
82 void armv8_aes_encrypt_xts(AES_key_t *, const void *, size_t,
83 const uint8_t *, uint8_t *, const uint8_t[AES_BLOCK_LEN]);
84 void armv8_aes_decrypt_xts(AES_key_t *, const void *, size_t,
85 const uint8_t *, uint8_t *, const uint8_t[AES_BLOCK_LEN]);
87 #endif /* _ARMV8_CRYPTO_H_ */