providers/implementations/ciphers/cipher_aes_ccm_hw_rv64i.inc

   1 /*
   2  * Copyright 2022-2023 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 /*-
  11  * RISC-V 64 ZKND ZKNE support for AES CCM.
  12  * This file is included by cipher_aes_ccm_hw.c
  13  */
  14
  15 static int ccm_rv64i_zknd_zkne_initkey(PROV_CCM_CTX *ctx, const unsigned char *key,
  16                              size_t keylen)
  17 {
  18     PROV_AES_CCM_CTX *actx = (PROV_AES_CCM_CTX *)ctx;
  19
  20     AES_HW_CCM_SET_KEY_FN(rv64i_zkne_set_encrypt_key, rv64i_zkne_encrypt,
  21                           NULL, NULL);
  22     return 1;
  23 }
  24
  25 static const PROV_CCM_HW rv64i_zknd_zkne_ccm = {
  26     ccm_rv64i_zknd_zkne_initkey,
  27     ossl_ccm_generic_setiv,
  28     ossl_ccm_generic_setaad,
  29     ossl_ccm_generic_auth_encrypt,
  30     ossl_ccm_generic_auth_decrypt,
  31     ossl_ccm_generic_gettag
  32 };
  33
  34 const PROV_CCM_HW *ossl_prov_aes_hw_ccm(size_t keybits)
  35 {
  36     return RISCV_HAS_ZKND_AND_ZKNE() ? &rv64i_zknd_zkne_ccm : &aes_ccm;
  37 }