2019-08-26 15:05:08 +08:00
|
|
|
/*
|
2020-04-23 20:55:52 +08:00
|
|
|
* Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
|
2019-08-26 15:05:08 +08:00
|
|
|
*
|
|
|
|
* 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 CCM mode */
|
|
|
|
|
2019-12-06 01:09:49 +08:00
|
|
|
/*
|
|
|
|
* This file uses the low level AES functions (which are deprecated for
|
|
|
|
* non-internal use) in order to implement provider AES ciphers.
|
|
|
|
*/
|
|
|
|
#include "internal/deprecated.h"
|
|
|
|
|
2019-12-11 20:11:34 +08:00
|
|
|
#include "cipher_aes_ccm.h"
|
2019-08-26 15:05:08 +08:00
|
|
|
|
|
|
|
#define AES_HW_CCM_SET_KEY_FN(fn_set_enc_key, fn_blk, fn_ccm_enc, fn_ccm_dec) \
|
|
|
|
fn_set_enc_key(key, keylen * 8, &actx->ccm.ks.ks); \
|
|
|
|
CRYPTO_ccm128_init(&ctx->ccm_ctx, ctx->m, ctx->l, &actx->ccm.ks.ks, \
|
|
|
|
(block128_f)fn_blk); \
|
|
|
|
ctx->str = ctx->enc ? (ccm128_f)fn_ccm_enc : (ccm128_f)fn_ccm_dec; \
|
|
|
|
ctx->key_set = 1;
|
|
|
|
|
|
|
|
static int ccm_generic_aes_initkey(PROV_CCM_CTX *ctx, const unsigned char *key,
|
|
|
|
size_t keylen)
|
|
|
|
{
|
|
|
|
PROV_AES_CCM_CTX *actx = (PROV_AES_CCM_CTX *)ctx;
|
|
|
|
|
|
|
|
#ifdef HWAES_CAPABLE
|
|
|
|
if (HWAES_CAPABLE) {
|
|
|
|
AES_HW_CCM_SET_KEY_FN(HWAES_set_encrypt_key, HWAES_encrypt, NULL, NULL);
|
|
|
|
} else
|
|
|
|
#endif /* HWAES_CAPABLE */
|
|
|
|
|
|
|
|
#ifdef VPAES_CAPABLE
|
|
|
|
if (VPAES_CAPABLE) {
|
|
|
|
AES_HW_CCM_SET_KEY_FN(vpaes_set_encrypt_key, vpaes_encrypt, NULL, NULL);
|
|
|
|
} else
|
|
|
|
#endif
|
|
|
|
{
|
|
|
|
AES_HW_CCM_SET_KEY_FN(AES_set_encrypt_key, AES_encrypt, NULL, NULL)
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const PROV_CCM_HW aes_ccm = {
|
|
|
|
ccm_generic_aes_initkey,
|
|
|
|
ccm_generic_setiv,
|
|
|
|
ccm_generic_setaad,
|
|
|
|
ccm_generic_auth_encrypt,
|
|
|
|
ccm_generic_auth_decrypt,
|
|
|
|
ccm_generic_gettag
|
|
|
|
};
|
|
|
|
|
|
|
|
#if defined(S390X_aes_128_CAPABLE)
|
|
|
|
# include "cipher_aes_ccm_hw_s390x.inc"
|
|
|
|
#elif defined(AESNI_CAPABLE)
|
|
|
|
# include "cipher_aes_ccm_hw_aesni.inc"
|
|
|
|
#elif defined(SPARC_AES_CAPABLE)
|
|
|
|
# include "cipher_aes_ccm_hw_t4.inc"
|
|
|
|
#else
|
|
|
|
const PROV_CCM_HW *PROV_AES_HW_ccm(size_t keybits)
|
|
|
|
{
|
|
|
|
return &aes_ccm;
|
|
|
|
}
|
|
|
|
#endif
|