diff options
Diffstat (limited to 'src/lib/libcrypto/asn1/a_sign.c')
-rw-r--r-- | src/lib/libcrypto/asn1/a_sign.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/lib/libcrypto/asn1/a_sign.c b/src/lib/libcrypto/asn1/a_sign.c new file mode 100644 index 0000000000..02188e68c4 --- /dev/null +++ b/src/lib/libcrypto/asn1/a_sign.c | |||
@@ -0,0 +1,147 @@ | |||
1 | /* crypto/asn1/a_sign.c */ | ||
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
3 | * All rights reserved. | ||
4 | * | ||
5 | * This package is an SSL implementation written | ||
6 | * by Eric Young (eay@cryptsoft.com). | ||
7 | * The implementation was written so as to conform with Netscapes SSL. | ||
8 | * | ||
9 | * This library is free for commercial and non-commercial use as long as | ||
10 | * the following conditions are aheared to. The following conditions | ||
11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
13 | * included with this distribution is covered by the same copyright terms | ||
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
15 | * | ||
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
17 | * the code are not to be removed. | ||
18 | * If this package is used in a product, Eric Young should be given attribution | ||
19 | * as the author of the parts of the library used. | ||
20 | * This can be in the form of a textual message at program startup or | ||
21 | * in documentation (online or textual) provided with the package. | ||
22 | * | ||
23 | * Redistribution and use in source and binary forms, with or without | ||
24 | * modification, are permitted provided that the following conditions | ||
25 | * are met: | ||
26 | * 1. Redistributions of source code must retain the copyright | ||
27 | * notice, this list of conditions and the following disclaimer. | ||
28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
29 | * notice, this list of conditions and the following disclaimer in the | ||
30 | * documentation and/or other materials provided with the distribution. | ||
31 | * 3. All advertising materials mentioning features or use of this software | ||
32 | * must display the following acknowledgement: | ||
33 | * "This product includes cryptographic software written by | ||
34 | * Eric Young (eay@cryptsoft.com)" | ||
35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
36 | * being used are not cryptographic related :-). | ||
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
38 | * the apps directory (application code) you must include an acknowledgement: | ||
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
40 | * | ||
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
51 | * SUCH DAMAGE. | ||
52 | * | ||
53 | * The licence and distribution terms for any publically available version or | ||
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
55 | * copied and put under another distribution licence | ||
56 | * [including the GNU Public Licence.] | ||
57 | */ | ||
58 | |||
59 | #include <stdio.h> | ||
60 | #include <time.h> | ||
61 | #include <sys/types.h> | ||
62 | #include <sys/stat.h> | ||
63 | |||
64 | #include "cryptlib.h" | ||
65 | #include "bn.h" | ||
66 | #include "evp.h" | ||
67 | #include "x509.h" | ||
68 | #include "objects.h" | ||
69 | #include "buffer.h" | ||
70 | #include "pem.h" | ||
71 | |||
72 | int ASN1_sign(i2d,algor1,algor2,signature,data,pkey,type) | ||
73 | int (*i2d)(); | ||
74 | X509_ALGOR *algor1; | ||
75 | X509_ALGOR *algor2; | ||
76 | ASN1_BIT_STRING *signature; | ||
77 | char *data; | ||
78 | EVP_PKEY *pkey; | ||
79 | EVP_MD *type; | ||
80 | { | ||
81 | EVP_MD_CTX ctx; | ||
82 | unsigned char *p,*buf_in=NULL,*buf_out=NULL; | ||
83 | int i,inl=0,outl=0,outll=0; | ||
84 | X509_ALGOR *a; | ||
85 | |||
86 | for (i=0; i<2; i++) | ||
87 | { | ||
88 | if (i == 0) | ||
89 | a=algor1; | ||
90 | else | ||
91 | a=algor2; | ||
92 | if (a == NULL) continue; | ||
93 | if ( (a->parameter == NULL) || | ||
94 | (a->parameter->type != V_ASN1_NULL)) | ||
95 | { | ||
96 | ASN1_TYPE_free(a->parameter); | ||
97 | if ((a->parameter=ASN1_TYPE_new()) == NULL) goto err; | ||
98 | a->parameter->type=V_ASN1_NULL; | ||
99 | } | ||
100 | ASN1_OBJECT_free(a->algorithm); | ||
101 | a->algorithm=OBJ_nid2obj(type->pkey_type); | ||
102 | if (a->algorithm == NULL) | ||
103 | { | ||
104 | ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_UNKNOWN_OBJECT_TYPE); | ||
105 | goto err; | ||
106 | } | ||
107 | if (a->algorithm->length == 0) | ||
108 | { | ||
109 | ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD); | ||
110 | goto err; | ||
111 | } | ||
112 | } | ||
113 | inl=i2d(data,NULL); | ||
114 | buf_in=(unsigned char *)Malloc((unsigned int)inl); | ||
115 | outll=outl=EVP_PKEY_size(pkey); | ||
116 | buf_out=(unsigned char *)Malloc((unsigned int)outl); | ||
117 | if ((buf_in == NULL) || (buf_out == NULL)) | ||
118 | { | ||
119 | outl=0; | ||
120 | ASN1err(ASN1_F_ASN1_SIGN,ERR_R_MALLOC_FAILURE); | ||
121 | goto err; | ||
122 | } | ||
123 | p=buf_in; | ||
124 | |||
125 | i2d(data,&p); | ||
126 | EVP_SignInit(&ctx,type); | ||
127 | EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl); | ||
128 | if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out, | ||
129 | (unsigned int *)&outl,pkey)) | ||
130 | { | ||
131 | outl=0; | ||
132 | ASN1err(ASN1_F_ASN1_SIGN,ERR_R_EVP_LIB); | ||
133 | goto err; | ||
134 | } | ||
135 | if (signature->data != NULL) Free((char *)signature->data); | ||
136 | signature->data=buf_out; | ||
137 | buf_out=NULL; | ||
138 | signature->length=outl; | ||
139 | |||
140 | err: | ||
141 | memset(&ctx,0,sizeof(ctx)); | ||
142 | if (buf_in != NULL) | ||
143 | { memset((char *)buf_in,0,(unsigned int)inl); Free((char *)buf_in); } | ||
144 | if (buf_out != NULL) | ||
145 | { memset((char *)buf_out,0,outll); Free((char *)buf_out); } | ||
146 | return(outl); | ||
147 | } | ||