providers/implementations/ciphers/cipher_cts.h

   1 /*
   2  * Copyright 2020-2021 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 "crypto/evp.h"
  11
  12 /* NOTE: The underlying block cipher is CBC so we reuse most of the code */
  13 #define IMPLEMENT_cts_cipher(alg, UCALG, lcmode, UCMODE, flags, kbits,         \
  14                              blkbits, ivbits, typ)                             \
  15 static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lcmode##_get_params;   \
  16 static int alg##_cts_##kbits##_##lcmode##_get_params(OSSL_PARAM params[])      \
  17 {                                                                              \
  18     return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE,    \
  19                                           flags, kbits, blkbits, ivbits);      \
  20 }                                                                              \
  21 const OSSL_DISPATCH ossl_##alg##kbits##lcmode##_cts_functions[] = {            \
  22     { OSSL_FUNC_CIPHER_NEWCTX,                                                 \
  23       (void (*)(void)) alg##_##kbits##_##lcmode##_newctx },                    \
  24     { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void)) alg##_freectx },              \
  25     { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void)) alg##_dupctx },                \
  26     { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void)) alg##_cbc_cts_einit },   \
  27     { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void)) alg##_cbc_cts_dinit },   \
  28     { OSSL_FUNC_CIPHER_UPDATE,                                                 \
  29       (void (*)(void)) ossl_cipher_cbc_cts_block_update },                     \
  30     { OSSL_FUNC_CIPHER_FINAL,                                                  \
  31       (void (*)(void)) ossl_cipher_cbc_cts_block_final },                      \
  32     { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_cipher_generic_cipher },   \
  33     { OSSL_FUNC_CIPHER_GET_PARAMS,                                             \
  34       (void (*)(void)) alg##_cts_##kbits##_##lcmode##_get_params },            \
  35     { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,                                        \
  36       (void (*)(void))ossl_cipher_generic_gettable_params },                   \
  37     { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,                                         \
  38       (void (*)(void)) alg##_cbc_cts_get_ctx_params },                         \
  39     { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,                                         \
  40       (void (*)(void)) alg##_cbc_cts_set_ctx_params },                         \
  41     { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,                                    \
  42       (void (*)(void)) alg##_cbc_cts_gettable_ctx_params },                    \
  43     { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,                                    \
  44      (void (*)(void)) alg##_cbc_cts_settable_ctx_params },                     \
  45     { 0, NULL }                                                                \
  46 };
  47
  48 OSSL_FUNC_cipher_update_fn ossl_cipher_cbc_cts_block_update;
  49 OSSL_FUNC_cipher_final_fn ossl_cipher_cbc_cts_block_final;
  50
  51 const char *ossl_cipher_cbc_cts_mode_id2name(unsigned int id);
  52 int ossl_cipher_cbc_cts_mode_name2id(const char *name);