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authorryker <>1998-10-05 20:13:14 +0000
committerryker <>1998-10-05 20:13:14 +0000
commitaeeae06a79815dc190061534d47236cec09f9e32 (patch)
tree851692b9c2f9c04f077666855641900f19fdb217 /src/lib/libcrypto/evp/evp_key.c
parenta4f79641824cbf9f60ca9d1168d1fcc46717a82a (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/evp/evp_key.c')
-rw-r--r--src/lib/libcrypto/evp/evp_key.c167
1 files changed, 167 insertions, 0 deletions
diff --git a/src/lib/libcrypto/evp/evp_key.c b/src/lib/libcrypto/evp/evp_key.c
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1/* crypto/evp/evp_key.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 "cryptlib.h"
61#include "x509.h"
62#include "objects.h"
63#include "evp.h"
64
65/* should be init to zeros. */
66static char prompt_string[80];
67
68void EVP_set_pw_prompt(prompt)
69char *prompt;
70 {
71 if (prompt == NULL)
72 prompt_string[0]='\0';
73 else
74 strncpy(prompt_string,prompt,79);
75 }
76
77char *EVP_get_pw_prompt()
78 {
79 if (prompt_string[0] == '\0')
80 return(NULL);
81 else
82 return(prompt_string);
83 }
84
85#ifdef NO_DES
86int des_read_pw_string(char *buf,int len,char *prompt,int verify);
87#endif
88
89int EVP_read_pw_string(buf,len,prompt,verify)
90char *buf;
91int len;
92char *prompt;
93int verify;
94 {
95 if ((prompt == NULL) && (prompt_string[0] != '\0'))
96 prompt=prompt_string;
97 return(des_read_pw_string(buf,len,prompt,verify));
98 }
99
100int EVP_BytesToKey(type,md,salt,data,datal,count,key,iv)
101EVP_CIPHER *type;
102EVP_MD *md;
103unsigned char *salt;
104unsigned char *data;
105int datal;
106int count;
107unsigned char *key;
108unsigned char *iv;
109 {
110 EVP_MD_CTX c;
111 unsigned char md_buf[EVP_MAX_MD_SIZE];
112 int niv,nkey,addmd=0;
113 unsigned int mds=0,i;
114
115 nkey=type->key_len;
116 niv=type->iv_len;
117
118 if (data == NULL) return(nkey);
119
120 for (;;)
121 {
122 EVP_DigestInit(&c,md);
123 if (addmd++)
124 EVP_DigestUpdate(&c,&(md_buf[0]),mds);
125 EVP_DigestUpdate(&c,data,datal);
126 if (salt != NULL)
127 EVP_DigestUpdate(&c,salt,8);
128 EVP_DigestFinal(&c,&(md_buf[0]),&mds);
129
130 for (i=1; i<(unsigned int)count; i++)
131 {
132 EVP_DigestInit(&c,md);
133 EVP_DigestUpdate(&c,&(md_buf[0]),mds);
134 EVP_DigestFinal(&c,&(md_buf[0]),&mds);
135 }
136 i=0;
137 if (nkey)
138 {
139 for (;;)
140 {
141 if (nkey == 0) break;
142 if (i == mds) break;
143 if (key != NULL)
144 *(key++)=md_buf[i];
145 nkey--;
146 i++;
147 }
148 }
149 if (niv && (i != mds))
150 {
151 for (;;)
152 {
153 if (niv == 0) break;
154 if (i == mds) break;
155 if (iv != NULL)
156 *(iv++)=md_buf[i];
157 niv--;
158 i++;
159 }
160 }
161 if ((nkey == 0) && (niv == 0)) break;
162 }
163 memset(&c,0,sizeof(c));
164 memset(&(md_buf[0]),0,EVP_MAX_MD_SIZE);
165 return(type->key_len);
166 }
167