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1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2  * All rights reserved.
3  *
4  * This package is an SSL implementation written
5  * by Eric Young (eay@cryptsoft.com).
6  * The implementation was written so as to conform with Netscapes SSL.
7  *
8  * This library is free for commercial and non-commercial use as long as
9  * the following conditions are aheared to.  The following conditions
10  * apply to all code found in this distribution, be it the RC4, RSA,
11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
12  * included with this distribution is covered by the same copyright terms
13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14  *
15  * Copyright remains Eric Young's, and as such any Copyright notices in
16  * the code are not to be removed.
17  * If this package is used in a product, Eric Young should be given attribution
18  * as the author of the parts of the library used.
19  * This can be in the form of a textual message at program startup or
20  * in documentation (online or textual) provided with the package.
21  *
22  * Redistribution and use in source and binary forms, with or without
23  * modification, are permitted provided that the following conditions
24  * are met:
25  * 1. Redistributions of source code must retain the copyright
26  *    notice, this list of conditions and the following disclaimer.
27  * 2. Redistributions in binary form must reproduce the above copyright
28  *    notice, this list of conditions and the following disclaimer in the
29  *    documentation and/or other materials provided with the distribution.
30  * 3. All advertising materials mentioning features or use of this software
31  *    must display the following acknowledgement:
32  *    "This product includes cryptographic software written by
33  *     Eric Young (eay@cryptsoft.com)"
34  *    The word 'cryptographic' can be left out if the rouines from the library
35  *    being used are not cryptographic related :-).
36  * 4. If you include any Windows specific code (or a derivative thereof) from
37  *    the apps directory (application code) you must include an acknowledgement:
38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50  * SUCH DAMAGE.
51  *
52  * The licence and distribution terms for any publically available version or
53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
54  * copied and put under another distribution licence
55  * [including the GNU Public Licence.] */
56 
57 #include <openssl/x509.h>
58 
59 #include <openssl/bio.h>
60 #include <openssl/err.h>
61 #include <openssl/mem.h>
62 
63 
64 /* |X509_R_UNSUPPORTED_ALGORITHM| is no longer emitted, but continue to define
65  * it to avoid downstream churn. */
OPENSSL_DECLARE_ERROR_REASON(X509,UNSUPPORTED_ALGORITHM)66 OPENSSL_DECLARE_ERROR_REASON(X509, UNSUPPORTED_ALGORITHM)
67 
68 int PKCS8_pkey_set0(PKCS8_PRIV_KEY_INFO *priv, ASN1_OBJECT *aobj, int version,
69                     int ptype, void *pval, uint8_t *penc, int penclen) {
70   uint8_t **ppenc = NULL;
71   if (version >= 0) {
72     if (!ASN1_INTEGER_set(priv->version, version)) {
73       return 0;
74     }
75   }
76 
77   if (penc) {
78     int pmtype;
79     ASN1_OCTET_STRING *oct;
80 
81     oct = ASN1_OCTET_STRING_new();
82     if (!oct) {
83       return 0;
84     }
85     oct->data = penc;
86     ppenc = &oct->data;
87     oct->length = penclen;
88     if (priv->broken == PKCS8_NO_OCTET) {
89       pmtype = V_ASN1_SEQUENCE;
90     } else {
91       pmtype = V_ASN1_OCTET_STRING;
92     }
93     ASN1_TYPE_set(priv->pkey, pmtype, oct);
94   }
95 
96   if (!X509_ALGOR_set0(priv->pkeyalg, aobj, ptype, pval)) {
97     /* If call fails do not swallow 'enc' */
98     if (ppenc) {
99       *ppenc = NULL;
100     }
101     return 0;
102   }
103 
104   return 1;
105 }
106 
PKCS8_pkey_get0(ASN1_OBJECT ** ppkalg,const uint8_t ** pk,int * ppklen,X509_ALGOR ** pa,PKCS8_PRIV_KEY_INFO * p8)107 int PKCS8_pkey_get0(ASN1_OBJECT **ppkalg, const uint8_t **pk, int *ppklen,
108                     X509_ALGOR **pa, PKCS8_PRIV_KEY_INFO *p8) {
109   if (ppkalg) {
110     *ppkalg = p8->pkeyalg->algorithm;
111   }
112 
113   if (p8->pkey->type == V_ASN1_OCTET_STRING) {
114     p8->broken = PKCS8_OK;
115     if (pk) {
116       *pk = p8->pkey->value.octet_string->data;
117       *ppklen = p8->pkey->value.octet_string->length;
118     }
119   } else if (p8->pkey->type == V_ASN1_SEQUENCE) {
120     p8->broken = PKCS8_NO_OCTET;
121     if (pk) {
122       *pk = p8->pkey->value.sequence->data;
123       *ppklen = p8->pkey->value.sequence->length;
124     }
125   } else {
126     return 0;
127   }
128 
129   if (pa) {
130     *pa = p8->pkeyalg;
131   }
132   return 1;
133 }
134 
X509_signature_dump(BIO * bp,const ASN1_STRING * sig,int indent)135 int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent) {
136   const uint8_t *s;
137   int i, n;
138 
139   n = sig->length;
140   s = sig->data;
141   for (i = 0; i < n; i++) {
142     if ((i % 18) == 0) {
143       if (BIO_write(bp, "\n", 1) <= 0 ||
144           BIO_indent(bp, indent, indent) <= 0) {
145         return 0;
146       }
147     }
148     if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0) {
149       return 0;
150     }
151   }
152   if (BIO_write(bp, "\n", 1) != 1) {
153     return 0;
154   }
155 
156   return 1;
157 }
158