1 | /* |
2 | * Copyright (c) 2012 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/sha2.h> |
31 | #include <libkern/libkern.h> |
32 | #include <kern/debug.h> |
33 | #include <corecrypto/ccdigest.h> |
34 | |
35 | #if defined(CRYPTO_SHA2) |
36 | |
37 | void SHA256_Init(SHA256_CTX *ctx) |
38 | { |
39 | const struct ccdigest_info *di; |
40 | di=g_crypto_funcs->ccsha256_di; |
41 | |
42 | /* Make sure the context size for the digest info fits in the one we have */ |
43 | if(ccdigest_di_size(di)>sizeof(SHA256_CTX)) |
44 | panic("%s: inconsistent size for SHA256 context" , __FUNCTION__); |
45 | |
46 | g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx); |
47 | } |
48 | |
49 | void SHA256_Update(SHA256_CTX *ctx, const void *data, size_t len) |
50 | { |
51 | const struct ccdigest_info *di; |
52 | di=g_crypto_funcs->ccsha256_di; |
53 | |
54 | g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data); |
55 | } |
56 | |
57 | void SHA256_Final(void *digest, SHA256_CTX *ctx) |
58 | { |
59 | const struct ccdigest_info *di; |
60 | di=g_crypto_funcs->ccsha256_di; |
61 | |
62 | ccdigest_final(di, ctx->ctx, digest); |
63 | } |
64 | |
65 | void SHA384_Init(SHA384_CTX *ctx) |
66 | { |
67 | const struct ccdigest_info *di; |
68 | di=g_crypto_funcs->ccsha384_di; |
69 | |
70 | /* Make sure the context size for the digest info fits in the one we have */ |
71 | if(ccdigest_di_size(di)>sizeof(SHA384_CTX)) |
72 | panic("%s: inconsistent size for SHA384 context" , __FUNCTION__); |
73 | |
74 | g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx); |
75 | } |
76 | |
77 | void SHA384_Update(SHA384_CTX *ctx, const void *data, size_t len) |
78 | { |
79 | const struct ccdigest_info *di; |
80 | di=g_crypto_funcs->ccsha384_di; |
81 | |
82 | g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data); |
83 | } |
84 | |
85 | |
86 | void SHA384_Final(void *digest, SHA384_CTX *ctx) |
87 | { |
88 | const struct ccdigest_info *di; |
89 | di=g_crypto_funcs->ccsha384_di; |
90 | |
91 | ccdigest_final(di, ctx->ctx, digest); |
92 | } |
93 | |
94 | void SHA512_Init(SHA512_CTX *ctx) |
95 | { |
96 | const struct ccdigest_info *di; |
97 | di=g_crypto_funcs->ccsha512_di; |
98 | |
99 | /* Make sure the context size for the digest info fits in the one we have */ |
100 | if(ccdigest_di_size(di)>sizeof(SHA512_CTX)) |
101 | panic("%s: inconsistent size for SHA512 context" , __FUNCTION__); |
102 | |
103 | g_crypto_funcs->ccdigest_init_fn(di, ctx->ctx); |
104 | } |
105 | |
106 | void SHA512_Update(SHA512_CTX *ctx, const void *data, size_t len) |
107 | { |
108 | const struct ccdigest_info *di; |
109 | di=g_crypto_funcs->ccsha512_di; |
110 | |
111 | g_crypto_funcs->ccdigest_update_fn(di, ctx->ctx, len, data); |
112 | } |
113 | |
114 | void SHA512_Final(void *digest, SHA512_CTX *ctx) |
115 | { |
116 | const struct ccdigest_info *di; |
117 | di=g_crypto_funcs->ccsha512_di; |
118 | |
119 | ccdigest_final(di, ctx->ctx, digest); |
120 | } |
121 | |
122 | #else |
123 | |
124 | /* As these are part of the KPI, we need to stub them out for any kernel configuration that does not support SHA2. */ |
125 | |
126 | void UNSUPPORTED_API(SHA256_Init, SHA256_CTX *ctx); |
127 | void UNSUPPORTED_API(SHA384_Init, SHA384_CTX *ctx); |
128 | void UNSUPPORTED_API(SHA512_Init, SHA512_CTX *ctx); |
129 | void UNSUPPORTED_API(SHA256_Update, SHA256_CTX *ctx, const void *data, size_t len); |
130 | void UNSUPPORTED_API(SHA384_Update, SHA384_CTX *ctx, const void *data, size_t len); |
131 | void UNSUPPORTED_API(SHA512_Update, SHA512_CTX *ctx, const void *data, size_t len); |
132 | void UNSUPPORTED_API(SHA256_Final, void *digest, SHA256_CTX *ctx); |
133 | void UNSUPPORTED_API(SHA384_Final, void *digest, SHA384_CTX *ctx); |
134 | void UNSUPPORTED_API(SHA512_Final, void *digest, SHA512_CTX *ctx); |
135 | |
136 | #endif |
137 | |
138 | |