freebsd-src/crypto/openssl/providers/implementations/ciphers/cipher_aes_ccm.c
Cy Schubert e0c4386e7e OpenSSL: Vendor import of OpenSSL 3.0.13
* Fixed PKCS12 Decoding crashes ([CVE-2024-0727])
 * Fixed Excessive time spent checking invalid RSA public keys
   ([CVE-2023-6237])
 * Fixed POLY1305 MAC implementation corrupting vector registers on
   PowerPC CPUs which support PowerISA 2.07 ([CVE-2023-6129])
 * Fix excessive time spent in DH check / generation with large Q
   parameter value ([CVE-2023-5678])

Release notes can be found at
            https://www.openssl.org/news/openssl-3.0-notes.html.

Approved by:	emaste
MFC after:	3 days

Merge commit '9dd13e84fa8eca8f3462bd55485aa3da8c37f54a'
2024-02-02 13:21:36 -08:00

70 lines
1.9 KiB
C

/*
* Copyright 2019-2024 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
*/
/*
* AES low level APIs are deprecated for public use, but still ok for internal
* use where we're using them to implement the higher level EVP interface, as is
* the case here.
*/
#include "internal/deprecated.h"
/* Dispatch functions for AES CCM mode */
#include "cipher_aes_ccm.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"
static void *aes_ccm_newctx(void *provctx, size_t keybits)
{
PROV_AES_CCM_CTX *ctx;
if (!ossl_prov_is_running())
return NULL;
ctx = OPENSSL_zalloc(sizeof(*ctx));
if (ctx != NULL)
ossl_ccm_initctx(&ctx->base, keybits, ossl_prov_aes_hw_ccm(keybits));
return ctx;
}
static void *aes_ccm_dupctx(void *provctx)
{
PROV_AES_CCM_CTX *ctx = provctx;
PROV_AES_CCM_CTX *dupctx = NULL;
if (ctx == NULL)
return NULL;
dupctx = OPENSSL_memdup(provctx, sizeof(*ctx));
if (dupctx == NULL)
return NULL;
/*
* ossl_cm_initctx, via the ossl_prov_aes_hw_ccm functions assign a
* provctx->ccm.ks.ks to the ccm context key so we need to point it to
* the memduped copy
*/
dupctx->base.ccm_ctx.key = &dupctx->ccm.ks.ks;
return dupctx;
}
static OSSL_FUNC_cipher_freectx_fn aes_ccm_freectx;
static void aes_ccm_freectx(void *vctx)
{
PROV_AES_CCM_CTX *ctx = (PROV_AES_CCM_CTX *)vctx;
OPENSSL_clear_free(ctx, sizeof(*ctx));
}
/* ossl_aes128ccm_functions */
IMPLEMENT_aead_cipher(aes, ccm, CCM, AEAD_FLAGS, 128, 8, 96);
/* ossl_aes192ccm_functions */
IMPLEMENT_aead_cipher(aes, ccm, CCM, AEAD_FLAGS, 192, 8, 96);
/* ossl_aes256ccm_functions */
IMPLEMENT_aead_cipher(aes, ccm, CCM, AEAD_FLAGS, 256, 8, 96);