1/*
2 * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <openssl/aes.h>
11#include "prov/ciphercommon.h"
12
13/*
14 * Available in cipher_fips.c, and compiled with different values depending
15 * on we're in the FIPS module or not.
16 */
17extern const int allow_insecure_decrypt;
18
19PROV_CIPHER_FUNC(void, xts_stream,
20 (const unsigned char *in, unsigned char *out, size_t len,
21 const AES_KEY *key1, const AES_KEY *key2,
22 const unsigned char iv[16]));
23
24typedef struct prov_aes_xts_ctx_st {
25 PROV_CIPHER_CTX base; /* Must be first */
26 union {
27 OSSL_UNION_ALIGN;
28 AES_KEY ks;
29 } ks1, ks2; /* AES key schedules to use */
30 XTS128_CONTEXT xts;
31 OSSL_xts_stream_fn stream;
32} PROV_AES_XTS_CTX;
33
34const PROV_CIPHER_HW *PROV_CIPHER_HW_aes_xts(size_t keybits);
35