providers/implementations/ciphers/cipher_aria_ccm.c

   1 /*
   2  * Copyright 2019-2023 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 /* 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