1 /*
2 * Copyright (c) 2016 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29 #include <libkern/crypto/crypto_internal.h>
30 #include <libkern/crypto/rsa.h>
31 #include <corecrypto/ccrsa.h>
32
33
34 int
rsa_make_pub(rsa_pub_ctx * pub,size_t exp_nbytes,const uint8_t * exp,size_t mod_nbytes,const uint8_t * mod)35 rsa_make_pub(rsa_pub_ctx *pub,
36 size_t exp_nbytes, const uint8_t *exp,
37 size_t mod_nbytes, const uint8_t *mod)
38 {
39 if ((exp_nbytes > RSA_MAX_KEY_BITSIZE / 8)
40 || (mod_nbytes > RSA_MAX_KEY_BITSIZE / 8)) {
41 return -1; // Too big
42 }
43 ccrsa_ctx_n(pub->key) = ccn_nof(RSA_MAX_KEY_BITSIZE);
44 return g_crypto_funcs->ccrsa_make_pub_fn(pub->key,
45 exp_nbytes, exp,
46 mod_nbytes, mod);
47 }
48
49 int
rsa_verify_pkcs1v15(rsa_pub_ctx * pub,const uint8_t * oid,size_t digest_len,const uint8_t * digest,size_t sig_len,const uint8_t * sig,bool * valid)50 rsa_verify_pkcs1v15(rsa_pub_ctx *pub, const uint8_t *oid,
51 size_t digest_len, const uint8_t *digest,
52 size_t sig_len, const uint8_t *sig,
53 bool *valid)
54 {
55 return g_crypto_funcs->ccrsa_verify_pkcs1v15_fn(pub->key, oid,
56 digest_len, digest,
57 sig_len, sig, valid);
58 }
59