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[thirdparty/openssl.git] / crypto / asn1 / i2d_r_pr.c
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d02b48c6 1/* crypto/asn1/i2d_r_pr.c */
58964a49 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6
RE
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 "cryptlib.h"
61#include "bn.h"
62#include "rsa.h"
63#include "objects.h"
64#include "asn1_mac.h"
65
66/*
dfeab068 67 * ASN1err(ASN1_F_D2I_RSAPRIVATEKEY,ERR_R_ASN1_LENGTH_MISMATCH);
d02b48c6
RE
68 * ASN1err(ASN1_F_I2D_RSAPRIVATEKEY,ASN1_R_UNKNOWN_ATTRIBUTE_TYPE);
69 */
70
6b691a5c 71int i2d_RSAPrivateKey(RSA *a, unsigned char **pp)
d02b48c6
RE
72 {
73 BIGNUM *num[9];
74 unsigned char data[1];
75 ASN1_INTEGER bs;
76 unsigned int j,i,tot,t,len,max=0;
77 unsigned char *p;
78
79 if (a == NULL) return(0);
80
81 num[1]=a->n;
82 num[2]=a->e;
83 num[3]=a->d;
84 num[4]=a->p;
85 num[5]=a->q;
86 num[6]=a->dmp1;
87 num[7]=a->dmq1;
88 num[8]=a->iqmp;
89
90 bs.length=1;
91 bs.data=data;
92 bs.type=V_ASN1_INTEGER;
93 data[0]=a->version&0x7f;
94
95 tot=i2d_ASN1_INTEGER(&(bs),NULL);
96 for (i=1; i<9; i++)
97 {
98 j=BN_num_bits(num[i]);
99 len=((j == 0)?0:((j/8)+1));
100 if (len > max) max=len;
101 len=ASN1_object_size(0,len,
102 (num[i]->neg)?V_ASN1_NEG_INTEGER:V_ASN1_INTEGER);
103 tot+=len;
104 }
105
106 t=ASN1_object_size(1,tot,V_ASN1_SEQUENCE);
107 if (pp == NULL) return(t);
108
109 p= *pp;
110 ASN1_put_object(&p,1,tot,V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
111
112 i2d_ASN1_INTEGER(&bs,&p);
113
114 bs.data=(unsigned char *)Malloc(max+4);
115 if (bs.data == NULL)
116 {
117 ASN1err(ASN1_F_I2D_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
118 return(-1);
119 }
120
121 for (i=1; i<9; i++)
122 {
123 bs.length=BN_bn2bin(num[i],bs.data);
124 i2d_ASN1_INTEGER(&bs,&p);
125 }
126 Free((char *)bs.data);
127 *pp=p;
128 return(t);
129 }
130