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/*
* Copyright 2023 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
*/
/*-
* RV64I ZVKSED support for SM4 CCM.
* This file is included by cipher_sm4_ccm_hw.c
*/
static int rv64i_zvksed_sm4_ccm_initkey(PROV_CCM_CTX *ctx,
const unsigned char *key,
size_t keylen)
{
PROV_SM4_CCM_CTX *actx = (PROV_SM4_CCM_CTX *)ctx;
SM4_HW_CCM_SET_KEY_FN(rv64i_zvksed_sm4_set_encrypt_key,
rv64i_zvksed_sm4_encrypt, NULL, NULL);
return 1;
}
static const PROV_CCM_HW rv64i_zvksed_sm4_ccm = {
rv64i_zvksed_sm4_ccm_initkey,
ossl_ccm_generic_setiv,
ossl_ccm_generic_setaad,
ossl_ccm_generic_auth_encrypt,
ossl_ccm_generic_auth_decrypt,
ossl_ccm_generic_gettag
};
const PROV_CCM_HW *ossl_prov_sm4_hw_ccm(size_t keybits)
{
if (RISCV_HAS_ZVKB_AND_ZVKSED() && riscv_vlen() >= 128)
return &rv64i_zvksed_sm4_ccm;
else
return &ccm_sm4;
}
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