2 * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
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
11 * This file uses the low level AES functions (which are deprecated for
12 * non-internal use) in order to implement provider AES ciphers.
14 #include "internal/deprecated.h"
16 #include "cipher_aes_ocb.h"
18 #define OCB_SET_KEY_FN(fn_set_enc_key, fn_set_dec_key, \
19 fn_block_enc, fn_block_dec, \
20 fn_stream_enc, fn_stream_dec) \
21 fn_set_enc_key(key, keylen * 8, &ctx->ksenc.ks); \
22 fn_set_dec_key(key, keylen * 8, &ctx->ksdec.ks); \
23 if (!CRYPTO_ocb128_init(&ctx->ocb, &ctx->ksenc.ks, &ctx->ksdec.ks, \
24 (block128_f)fn_block_enc, (block128_f)fn_block_dec, \
25 ctx->base.enc ? (ocb128_f)fn_stream_enc : \
26 (ocb128_f)fn_stream_dec)) \
31 static int cipher_hw_aes_ocb_generic_initkey(PROV_CIPHER_CTX *vctx,
32 const unsigned char *key,
35 PROV_AES_OCB_CTX *ctx = (PROV_AES_OCB_CTX *)vctx;
38 * We set both the encrypt and decrypt key here because decrypt
39 * needs both. (i.e- AAD uses encrypt).
43 OCB_SET_KEY_FN(HWAES_set_encrypt_key, HWAES_set_decrypt_key,
44 HWAES_encrypt, HWAES_decrypt,
45 HWAES_ocb_encrypt, HWAES_ocb_decrypt);
50 OCB_SET_KEY_FN(vpaes_set_encrypt_key, vpaes_set_decrypt_key,
51 vpaes_encrypt, vpaes_decrypt, NULL, NULL);
55 OCB_SET_KEY_FN(AES_set_encrypt_key, AES_set_decrypt_key,
56 AES_encrypt, AES_decrypt, NULL, NULL);
61 # if defined(AESNI_CAPABLE)
63 static int cipher_hw_aes_ocb_aesni_initkey(PROV_CIPHER_CTX *vctx,
64 const unsigned char *key,
67 PROV_AES_OCB_CTX *ctx = (PROV_AES_OCB_CTX *)vctx;
69 OCB_SET_KEY_FN(aesni_set_encrypt_key, aesni_set_decrypt_key,
70 aesni_encrypt, aesni_decrypt,
71 aesni_ocb_encrypt, aesni_ocb_decrypt);
75 # define PROV_CIPHER_HW_declare() \
76 static const PROV_CIPHER_HW aesni_ocb = { \
77 cipher_hw_aes_ocb_aesni_initkey, \
80 # define PROV_CIPHER_HW_select() \
84 #elif defined(SPARC_AES_CAPABLE)
86 static int cipher_hw_aes_ocb_t4_initkey(PROV_CIPHER_CTX *vctx,
87 const unsigned char *key,
90 PROV_AES_OCB_CTX *ctx = (PROV_AES_OCB_CTX *)vctx;
92 OCB_SET_KEY_FN(aes_t4_set_encrypt_key, aes_t4_set_decrypt_key,
93 aes_t4_encrypt, aes_t4_decrypt, NULL, NULL);
97 # define PROV_CIPHER_HW_declare() \
98 static const PROV_CIPHER_HW aes_t4_ocb = { \
99 cipher_hw_aes_ocb_t4_initkey, \
102 # define PROV_CIPHER_HW_select() \
103 if (SPARC_AES_CAPABLE) \
106 # define PROV_CIPHER_HW_declare()
107 # define PROV_CIPHER_HW_select()
110 static const PROV_CIPHER_HW aes_generic_ocb = {
111 cipher_hw_aes_ocb_generic_initkey,
114 PROV_CIPHER_HW_declare()
115 const PROV_CIPHER_HW *PROV_CIPHER_HW_aes_ocb(size_t keybits)
117 PROV_CIPHER_HW_select()
118 return &aes_generic_ocb;