Home | History | Annotate | Line # | Download | only in ciphers 
      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