1 /*
2 * Copyright (c) 2017 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 <corecrypto/ccchacha20poly1305.h>
30 #include <libkern/crypto/crypto_internal.h>
31 #include <libkern/crypto/chacha20poly1305.h>
32
33 static ccchacha20poly1305_fns_t
fns(void)34 fns(void)
35 {
36 return g_crypto_funcs->ccchacha20poly1305_fns;
37 }
38
39 static const struct ccchacha20poly1305_info *
info(void)40 info(void)
41 {
42 return fns()->info();
43 }
44
45 int
chacha20poly1305_init(chacha20poly1305_ctx * ctx,const uint8_t * key)46 chacha20poly1305_init(chacha20poly1305_ctx *ctx, const uint8_t *key)
47 {
48 return fns()->init(info(), ctx, key);
49 }
50
51 int
chacha20poly1305_reset(chacha20poly1305_ctx * ctx)52 chacha20poly1305_reset(chacha20poly1305_ctx *ctx)
53 {
54 return fns()->reset(info(), ctx);
55 }
56
57 int
chacha20poly1305_setnonce(chacha20poly1305_ctx * ctx,const uint8_t * nonce)58 chacha20poly1305_setnonce(chacha20poly1305_ctx *ctx, const uint8_t *nonce)
59 {
60 return fns()->setnonce(info(), ctx, nonce);
61 }
62
63 int
chacha20poly1305_incnonce(chacha20poly1305_ctx * ctx,uint8_t * nonce)64 chacha20poly1305_incnonce(chacha20poly1305_ctx *ctx, uint8_t *nonce)
65 {
66 return fns()->incnonce(info(), ctx, nonce);
67 }
68
69 int
chacha20poly1305_aad(chacha20poly1305_ctx * ctx,size_t nbytes,const void * aad)70 chacha20poly1305_aad(chacha20poly1305_ctx *ctx, size_t nbytes, const void *aad)
71 {
72 return fns()->aad(info(), ctx, nbytes, aad);
73 }
74
75 int
chacha20poly1305_encrypt(chacha20poly1305_ctx * ctx,size_t nbytes,const void * ptext,void * ctext)76 chacha20poly1305_encrypt(chacha20poly1305_ctx *ctx, size_t nbytes, const void *ptext, void *ctext)
77 {
78 return fns()->encrypt(info(), ctx, nbytes, ptext, ctext);
79 }
80
81 int
chacha20poly1305_finalize(chacha20poly1305_ctx * ctx,uint8_t * tag)82 chacha20poly1305_finalize(chacha20poly1305_ctx *ctx, uint8_t *tag)
83 {
84 return fns()->finalize(info(), ctx, tag);
85 }
86
87 int
chacha20poly1305_decrypt(chacha20poly1305_ctx * ctx,size_t nbytes,const void * ctext,void * ptext)88 chacha20poly1305_decrypt(chacha20poly1305_ctx *ctx, size_t nbytes, const void *ctext, void *ptext)
89 {
90 return fns()->decrypt(info(), ctx, nbytes, ctext, ptext);
91 }
92
93 int
chacha20poly1305_verify(chacha20poly1305_ctx * ctx,const uint8_t * tag)94 chacha20poly1305_verify(chacha20poly1305_ctx *ctx, const uint8_t *tag)
95 {
96 return fns()->verify(info(), ctx, tag);
97 }
98