1b077aed3SPierre Pronchery /*
2*e0c4386eSCy Schubert * Copyright 2019-2024 The OpenSSL Project Authors. All Rights Reserved.
3b077aed3SPierre Pronchery *
4b077aed3SPierre Pronchery * Licensed under the Apache License 2.0 (the "License"). You may not use
5b077aed3SPierre Pronchery * this file except in compliance with the License. You can obtain a copy
6b077aed3SPierre Pronchery * in the file LICENSE in the source distribution or at
7b077aed3SPierre Pronchery * https://www.openssl.org/source/license.html
8b077aed3SPierre Pronchery */
9b077aed3SPierre Pronchery
10b077aed3SPierre Pronchery /*
11b077aed3SPierre Pronchery * AES low level APIs are deprecated for public use, but still ok for internal
12b077aed3SPierre Pronchery * use where we're using them to implement the higher level EVP interface, as is
13b077aed3SPierre Pronchery * the case here.
14b077aed3SPierre Pronchery */
15b077aed3SPierre Pronchery #include "internal/deprecated.h"
16b077aed3SPierre Pronchery
17b077aed3SPierre Pronchery /* Dispatch functions for AES GCM mode */
18b077aed3SPierre Pronchery
19b077aed3SPierre Pronchery #include "cipher_aes_gcm.h"
20b077aed3SPierre Pronchery #include "prov/implementations.h"
21b077aed3SPierre Pronchery #include "prov/providercommon.h"
22b077aed3SPierre Pronchery
aes_gcm_newctx(void * provctx,size_t keybits)23b077aed3SPierre Pronchery static void *aes_gcm_newctx(void *provctx, size_t keybits)
24b077aed3SPierre Pronchery {
25b077aed3SPierre Pronchery PROV_AES_GCM_CTX *ctx;
26b077aed3SPierre Pronchery
27b077aed3SPierre Pronchery if (!ossl_prov_is_running())
28b077aed3SPierre Pronchery return NULL;
29b077aed3SPierre Pronchery
30b077aed3SPierre Pronchery ctx = OPENSSL_zalloc(sizeof(*ctx));
31b077aed3SPierre Pronchery if (ctx != NULL)
32b077aed3SPierre Pronchery ossl_gcm_initctx(provctx, &ctx->base, keybits,
33b077aed3SPierre Pronchery ossl_prov_aes_hw_gcm(keybits));
34b077aed3SPierre Pronchery return ctx;
35b077aed3SPierre Pronchery }
36b077aed3SPierre Pronchery
aes_gcm_dupctx(void * provctx)37*e0c4386eSCy Schubert static void *aes_gcm_dupctx(void *provctx)
38*e0c4386eSCy Schubert {
39*e0c4386eSCy Schubert PROV_AES_GCM_CTX *ctx = provctx;
40*e0c4386eSCy Schubert PROV_AES_GCM_CTX *dctx = NULL;
41*e0c4386eSCy Schubert
42*e0c4386eSCy Schubert if (ctx == NULL)
43*e0c4386eSCy Schubert return NULL;
44*e0c4386eSCy Schubert
45*e0c4386eSCy Schubert dctx = OPENSSL_memdup(ctx, sizeof(*ctx));
46*e0c4386eSCy Schubert if (dctx != NULL && dctx->base.gcm.key != NULL)
47*e0c4386eSCy Schubert dctx->base.gcm.key = &dctx->ks.ks;
48*e0c4386eSCy Schubert
49*e0c4386eSCy Schubert return dctx;
50*e0c4386eSCy Schubert }
51*e0c4386eSCy Schubert
52b077aed3SPierre Pronchery static OSSL_FUNC_cipher_freectx_fn aes_gcm_freectx;
aes_gcm_freectx(void * vctx)53b077aed3SPierre Pronchery static void aes_gcm_freectx(void *vctx)
54b077aed3SPierre Pronchery {
55b077aed3SPierre Pronchery PROV_AES_GCM_CTX *ctx = (PROV_AES_GCM_CTX *)vctx;
56b077aed3SPierre Pronchery
57b077aed3SPierre Pronchery OPENSSL_clear_free(ctx, sizeof(*ctx));
58b077aed3SPierre Pronchery }
59b077aed3SPierre Pronchery
60b077aed3SPierre Pronchery /* ossl_aes128gcm_functions */
61b077aed3SPierre Pronchery IMPLEMENT_aead_cipher(aes, gcm, GCM, AEAD_FLAGS, 128, 8, 96);
62b077aed3SPierre Pronchery /* ossl_aes192gcm_functions */
63b077aed3SPierre Pronchery IMPLEMENT_aead_cipher(aes, gcm, GCM, AEAD_FLAGS, 192, 8, 96);
64b077aed3SPierre Pronchery /* ossl_aes256gcm_functions */
65b077aed3SPierre Pronchery IMPLEMENT_aead_cipher(aes, gcm, GCM, AEAD_FLAGS, 256, 8, 96);
66