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/*
* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "prov/ciphercommon.h"
#include "crypto/aes_platform.h"
#include "crypto/siv.h"
typedef struct prov_cipher_hw_aes_siv_st {
int (*initkey)(void *ctx, const uint8_t *key, size_t keylen);
int (*cipher)(void *ctx, unsigned char *out, const unsigned char *in,
size_t len);
void (*setspeed)(void *ctx, int speed);
int (*settag)(void *ctx, const unsigned char *tag, size_t tagl);
void (*cleanup)(void *ctx);
int (*dupctx)(void *src, void *dst);
} PROV_CIPHER_HW_AES_SIV;
typedef struct prov_siv_ctx_st {
unsigned int mode; /* The mode that we are using */
unsigned int enc : 1; /* Set to 1 if we are encrypting or 0 otherwise */
size_t keylen; /* The input keylength (twice the alg key length) */
size_t taglen; /* the taglen is the same as the sivlen */
SIV128_CONTEXT siv;
EVP_CIPHER *ctr; /* These are fetched - so we need to free them */
EVP_CIPHER *cbc;
const PROV_CIPHER_HW_AES_SIV *hw;
OSSL_LIB_CTX *libctx;
} PROV_AES_SIV_CTX;
const PROV_CIPHER_HW_AES_SIV *ossl_prov_cipher_hw_aes_siv(size_t keybits);
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