1 /* 2 * Copyright 2019-2021 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 "prov/ciphercommon.h" 11 #include "crypto/aes_platform.h" 12 #include "crypto/siv.h" 13 14 typedef struct prov_cipher_hw_aes_siv_st { 15 int (*initkey)(void *ctx, const uint8_t *key, size_t keylen); 16 int (*cipher)(void *ctx, unsigned char *out, const unsigned char *in, 17 size_t len); 18 void (*setspeed)(void *ctx, int speed); 19 int (*settag)(void *ctx, const unsigned char *tag, size_t tagl); 20 void (*cleanup)(void *ctx); 21 int (*dupctx)(void *src, void *dst); 22 } PROV_CIPHER_HW_AES_SIV; 23 24 typedef struct prov_siv_ctx_st { 25 unsigned int mode; /* The mode that we are using */ 26 unsigned int enc : 1; /* Set to 1 if we are encrypting or 0 otherwise */ 27 size_t keylen; /* The input keylength (twice the alg key length) */ 28 size_t taglen; /* the taglen is the same as the sivlen */ 29 SIV128_CONTEXT siv; 30 EVP_CIPHER *ctr; /* These are fetched - so we need to free them */ 31 EVP_CIPHER *cbc; 32 const PROV_CIPHER_HW_AES_SIV *hw; 33 OSSL_LIB_CTX *libctx; 34 } PROV_AES_SIV_CTX; 35 36 const PROV_CIPHER_HW_AES_SIV *ossl_prov_cipher_hw_aes_siv(size_t keybits); 37