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      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 /*-
     11  * Generic support for ARIA CCM.
     12  */
     13 
     14 #include "cipher_aria_ccm.h"
     15 
     16 static int ccm_aria_initkey(PROV_CCM_CTX *ctx,
     17     const unsigned char *key, size_t keylen)
     18 {
     19     PROV_ARIA_CCM_CTX *actx = (PROV_ARIA_CCM_CTX *)ctx;
     20 
     21     ossl_aria_set_encrypt_key(key, keylen * 8, &actx->ks.ks);
     22     CRYPTO_ccm128_init(&ctx->ccm_ctx, ctx->m, ctx->l, &actx->ks.ks,
     23         (block128_f)ossl_aria_encrypt);
     24     ctx->str = NULL;
     25     ctx->key_set = 1;
     26     return 1;
     27 }
     28 
     29 static const PROV_CCM_HW ccm_aria = {
     30     ccm_aria_initkey,
     31     ossl_ccm_generic_setiv,
     32     ossl_ccm_generic_setaad,
     33     ossl_ccm_generic_auth_encrypt,
     34     ossl_ccm_generic_auth_decrypt,
     35     ossl_ccm_generic_gettag
     36 };
     37 const PROV_CCM_HW *ossl_prov_aria_hw_ccm(size_t keybits)
     38 {
     39     return &ccm_aria;
     40 }
     41