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