Mercurial > trustbridge > nss-cmake-static

comparison nss/lib/util/secdig.c @ 0:1e5118fa0cb1

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This is NSS with a Cmake Buildsyste To compile a static NSS library for Windows we've used the Chromium-NSS fork and added a Cmake buildsystem to compile it statically for Windows. See README.chromium for chromium changes and README.trustbridge for our modifications.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 10:47:06 +0200
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-1:000000000000 0:1e5118fa0cb1
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4 #include "secdig.h"
5
6 #include "secoid.h"
7 #include "secasn1.h"
8 #include "secerr.h"
9
10 /*
11 * XXX Want to have a SGN_DecodeDigestInfo, like:
12 * SGNDigestInfo *SGN_DecodeDigestInfo(SECItem *didata);
13 * that creates a pool and allocates from it and decodes didata into
14 * the newly allocated DigestInfo structure. Then fix secvfy.c (it
15 * will no longer need an arena itself) to call this and then call
16 * DestroyDigestInfo when it is done, then can remove the old template
17 * above and keep our new template static and "hidden".
18 */
19
20 /*
21 * XXX It might be nice to combine the following two functions (create
22 * and encode). I think that is all anybody ever wants to do anyway.
23 */
24
25 SECItem *
26 SGN_EncodeDigestInfo(PLArenaPool *poolp, SECItem *dest, SGNDigestInfo *diginfo)
27 {
28 return SEC_ASN1EncodeItem (poolp, dest, diginfo, sgn_DigestInfoTemplate);
29 }
30
31 SGNDigestInfo *
32 SGN_CreateDigestInfo(SECOidTag algorithm, const unsigned char *sig,
33 unsigned len)
34 {
35 SGNDigestInfo *di;
36 SECStatus rv;
37 PLArenaPool *arena;
38 SECItem *null_param;
39 SECItem dummy_value;
40
41 switch (algorithm) {
42 case SEC_OID_MD2:
43 case SEC_OID_MD5:
44 case SEC_OID_SHA1:
45 case SEC_OID_SHA224:
46 case SEC_OID_SHA256:
47 case SEC_OID_SHA384:
48 case SEC_OID_SHA512:
49 break;
50 default:
51 PORT_SetError(SEC_ERROR_INVALID_ALGORITHM);
52 return NULL;
53 }
54
55 arena = PORT_NewArena(DER_DEFAULT_CHUNKSIZE);
56 if (arena == NULL) {
57 return NULL;
58 }
59
60 di = (SGNDigestInfo *) PORT_ArenaZAlloc(arena, sizeof(SGNDigestInfo));
61 if (di == NULL) {
62 PORT_FreeArena(arena, PR_FALSE);
63 return NULL;
64 }
65
66 di->arena = arena;
67
68 /*
69 * PKCS #1 specifies that the AlgorithmID must have a NULL parameter
70 * (as opposed to no parameter at all).
71 */
72 dummy_value.data = NULL;
73 dummy_value.len = 0;
74 null_param = SEC_ASN1EncodeItem(NULL, NULL, &dummy_value, SEC_NullTemplate);
75 if (null_param == NULL) {
76 goto loser;
77 }
78
79 rv = SECOID_SetAlgorithmID(arena, &di->digestAlgorithm, algorithm,
80 null_param);
81
82 SECITEM_FreeItem(null_param, PR_TRUE);
83
84 if (rv != SECSuccess) {
85 goto loser;
86 }
87
88 di->digest.data = (unsigned char *) PORT_ArenaAlloc(arena, len);
89 if (di->digest.data == NULL) {
90 goto loser;
91 }
92
93 di->digest.len = len;
94 PORT_Memcpy(di->digest.data, sig, len);
95 return di;
96
97 loser:
98 SGN_DestroyDigestInfo(di);
99 return NULL;
100 }
101
102 SGNDigestInfo *
103 SGN_DecodeDigestInfo(SECItem *didata)
104 {
105 PLArenaPool *arena;
106 SGNDigestInfo *di;
107 SECStatus rv = SECFailure;
108 SECItem diCopy = {siBuffer, NULL, 0};
109
110 arena = PORT_NewArena(SEC_ASN1_DEFAULT_ARENA_SIZE);
111 if(arena == NULL)
112 return NULL;
113
114 rv = SECITEM_CopyItem(arena, &diCopy, didata);
115 if (rv != SECSuccess) {
116 PORT_FreeArena(arena, PR_FALSE);
117 return NULL;
118 }
119
120 di = (SGNDigestInfo *)PORT_ArenaZAlloc(arena, sizeof(SGNDigestInfo));
121 if (di != NULL) {
122 di->arena = arena;
123 rv = SEC_QuickDERDecodeItem(arena, di, sgn_DigestInfoTemplate, &diCopy);
124 }
125
126 if ((di == NULL) || (rv != SECSuccess)) {
127 PORT_FreeArena(arena, PR_FALSE);
128 di = NULL;
129 }
130
131 return di;
132 }
133
134 void
135 SGN_DestroyDigestInfo(SGNDigestInfo *di)
136 {
137 if (di && di->arena) {
138 PORT_FreeArena(di->arena, PR_FALSE);
139 }
140
141 return;
142 }
143
144 SECStatus
145 SGN_CopyDigestInfo(PLArenaPool *poolp, SGNDigestInfo *a, SGNDigestInfo *b)
146 {
147 SECStatus rv;
148 void *mark;
149
150 if((poolp == NULL) || (a == NULL) || (b == NULL))
151 return SECFailure;
152
153 mark = PORT_ArenaMark(poolp);
154 a->arena = poolp;
155 rv = SECOID_CopyAlgorithmID(poolp, &a->digestAlgorithm,
156 &b->digestAlgorithm);
157 if (rv == SECSuccess)
158 rv = SECITEM_CopyItem(poolp, &a->digest, &b->digest);
159
160 if (rv != SECSuccess) {
161 PORT_ArenaRelease(poolp, mark);
162 } else {
163 PORT_ArenaUnmark(poolp, mark);
164 }
165
166 return rv;
167 }
168
169 SECComparison
170 SGN_CompareDigestInfo(SGNDigestInfo *a, SGNDigestInfo *b)
171 {
172 SECComparison rv;
173
174 /* Check signature algorithm's */
175 rv = SECOID_CompareAlgorithmID(&a->digestAlgorithm, &b->digestAlgorithm);
176 if (rv) return rv;
177
178 /* Compare signature block length's */
179 rv = SECITEM_CompareItem(&a->digest, &b->digest);
180 return rv;
181 }
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