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      1 /*
      2  * Copyright 2019-2024 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 /* Dispatch functions for ARIA CCM mode */
     11 
     12 #include "cipher_aria_ccm.h"
     13 #include "prov/implementations.h"
     14 #include "prov/providercommon.h"
     15 
     16 static OSSL_FUNC_cipher_freectx_fn aria_ccm_freectx;
     17 
     18 static void *aria_ccm_newctx(void *provctx, size_t keybits)
     19 {
     20     PROV_ARIA_CCM_CTX *ctx;
     21 
     22     if (!ossl_prov_is_running())
     23         return NULL;
     24 
     25     ctx = OPENSSL_zalloc(sizeof(*ctx));
     26     if (ctx != NULL)
     27         ossl_ccm_initctx(&ctx->base, keybits, ossl_prov_aria_hw_ccm(keybits));
     28     return ctx;
     29 }
     30 
     31 static void *aria_ccm_dupctx(void *provctx)
     32 {
     33     PROV_ARIA_CCM_CTX *ctx = provctx;
     34     PROV_ARIA_CCM_CTX *dctx = NULL;
     35 
     36     if (ctx == NULL)
     37         return NULL;
     38 
     39     dctx = OPENSSL_memdup(ctx, sizeof(*ctx));
     40     if (dctx != NULL && dctx->base.ccm_ctx.key != NULL)
     41         dctx->base.ccm_ctx.key = &dctx->ks.ks;
     42 
     43     return dctx;
     44 }
     45 
     46 static void aria_ccm_freectx(void *vctx)
     47 {
     48     PROV_ARIA_CCM_CTX *ctx = (PROV_ARIA_CCM_CTX *)vctx;
     49 
     50     OPENSSL_clear_free(ctx,  sizeof(*ctx));
     51 }
     52 
     53 /* aria128ccm functions */
     54 IMPLEMENT_aead_cipher(aria, ccm, CCM, AEAD_FLAGS, 128, 8, 96);
     55 /* aria192ccm functions */
     56 IMPLEMENT_aead_cipher(aria, ccm, CCM, AEAD_FLAGS, 192, 8, 96);
     57 /* aria256ccm functions */
     58 IMPLEMENT_aead_cipher(aria, ccm, CCM, AEAD_FLAGS, 256, 8, 96);
     59 
     60