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-rw-r--r--src/lib/libcrypto/pkcs12/p12_key.c219
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diff --git a/src/lib/libcrypto/pkcs12/p12_key.c b/src/lib/libcrypto/pkcs12/p12_key.c
deleted file mode 100644
index c55c7b60b3..0000000000
--- a/src/lib/libcrypto/pkcs12/p12_key.c
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1/* p12_key.c */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include <stdio.h>
60#include "cryptlib.h"
61#include <openssl/pkcs12.h>
62#include <openssl/bn.h>
63
64/* Uncomment out this line to get debugging info about key generation */
65/*#define DEBUG_KEYGEN*/
66#ifdef DEBUG_KEYGEN
67#include <openssl/bio.h>
68extern BIO *bio_err;
69void h__dump (unsigned char *p, int len);
70#endif
71
72/* PKCS12 compatible key/IV generation */
73#ifndef min
74#define min(a,b) ((a) < (b) ? (a) : (b))
75#endif
76
77int PKCS12_key_gen_asc(const char *pass, int passlen, unsigned char *salt,
78 int saltlen, int id, int iter, int n, unsigned char *out,
79 const EVP_MD *md_type)
80{
81 int ret;
82 unsigned char *unipass;
83 int uniplen;
84
85 if(!pass) {
86 unipass = NULL;
87 uniplen = 0;
88 } else if (!OPENSSL_asc2uni(pass, passlen, &unipass, &uniplen)) {
89 PKCS12err(PKCS12_F_PKCS12_KEY_GEN_ASC,ERR_R_MALLOC_FAILURE);
90 return 0;
91 }
92 ret = PKCS12_key_gen_uni(unipass, uniplen, salt, saltlen,
93 id, iter, n, out, md_type);
94 if (ret <= 0)
95 return 0;
96 if(unipass) {
97 OPENSSL_cleanse(unipass, uniplen); /* Clear password from memory */
98 OPENSSL_free(unipass);
99 }
100 return ret;
101}
102
103int PKCS12_key_gen_uni(unsigned char *pass, int passlen, unsigned char *salt,
104 int saltlen, int id, int iter, int n, unsigned char *out,
105 const EVP_MD *md_type)
106{
107 unsigned char *B, *D, *I, *p, *Ai;
108 int Slen, Plen, Ilen, Ijlen;
109 int i, j, u, v;
110 int ret = 0;
111 BIGNUM *Ij, *Bpl1; /* These hold Ij and B + 1 */
112 EVP_MD_CTX ctx;
113#ifdef DEBUG_KEYGEN
114 unsigned char *tmpout = out;
115 int tmpn = n;
116#endif
117
118#if 0
119 if (!pass) {
120 PKCS12err(PKCS12_F_PKCS12_KEY_GEN_UNI,ERR_R_PASSED_NULL_PARAMETER);
121 return 0;
122 }
123#endif
124
125 EVP_MD_CTX_init(&ctx);
126#ifdef DEBUG_KEYGEN
127 fprintf(stderr, "KEYGEN DEBUG\n");
128 fprintf(stderr, "ID %d, ITER %d\n", id, iter);
129 fprintf(stderr, "Password (length %d):\n", passlen);
130 h__dump(pass, passlen);
131 fprintf(stderr, "Salt (length %d):\n", saltlen);
132 h__dump(salt, saltlen);
133#endif
134 v = EVP_MD_block_size (md_type);
135 u = EVP_MD_size (md_type);
136 if (u < 0)
137 return 0;
138 D = OPENSSL_malloc (v);
139 Ai = OPENSSL_malloc (u);
140 B = OPENSSL_malloc (v + 1);
141 Slen = v * ((saltlen+v-1)/v);
142 if(passlen) Plen = v * ((passlen+v-1)/v);
143 else Plen = 0;
144 Ilen = Slen + Plen;
145 I = OPENSSL_malloc (Ilen);
146 Ij = BN_new();
147 Bpl1 = BN_new();
148 if (!D || !Ai || !B || !I || !Ij || !Bpl1)
149 goto err;
150 for (i = 0; i < v; i++) D[i] = id;
151 p = I;
152 for (i = 0; i < Slen; i++) *p++ = salt[i % saltlen];
153 for (i = 0; i < Plen; i++) *p++ = pass[i % passlen];
154 for (;;) {
155 if (!EVP_DigestInit_ex(&ctx, md_type, NULL)
156 || !EVP_DigestUpdate(&ctx, D, v)
157 || !EVP_DigestUpdate(&ctx, I, Ilen)
158 || !EVP_DigestFinal_ex(&ctx, Ai, NULL))
159 goto err;
160 for (j = 1; j < iter; j++) {
161 if (!EVP_DigestInit_ex(&ctx, md_type, NULL)
162 || !EVP_DigestUpdate(&ctx, Ai, u)
163 || !EVP_DigestFinal_ex(&ctx, Ai, NULL))
164 goto err;
165 }
166 memcpy (out, Ai, min (n, u));
167 if (u >= n) {
168#ifdef DEBUG_KEYGEN
169 fprintf(stderr, "Output KEY (length %d)\n", tmpn);
170 h__dump(tmpout, tmpn);
171#endif
172 ret = 1;
173 goto end;
174 }
175 n -= u;
176 out += u;
177 for (j = 0; j < v; j++) B[j] = Ai[j % u];
178 /* Work out B + 1 first then can use B as tmp space */
179 if (!BN_bin2bn (B, v, Bpl1)) goto err;
180 if (!BN_add_word (Bpl1, 1)) goto err;
181 for (j = 0; j < Ilen ; j+=v) {
182 if (!BN_bin2bn (I + j, v, Ij)) goto err;
183 if (!BN_add (Ij, Ij, Bpl1)) goto err;
184 BN_bn2bin (Ij, B);
185 Ijlen = BN_num_bytes (Ij);
186 /* If more than 2^(v*8) - 1 cut off MSB */
187 if (Ijlen > v) {
188 BN_bn2bin (Ij, B);
189 memcpy (I + j, B + 1, v);
190#ifndef PKCS12_BROKEN_KEYGEN
191 /* If less than v bytes pad with zeroes */
192 } else if (Ijlen < v) {
193 memset(I + j, 0, v - Ijlen);
194 BN_bn2bin(Ij, I + j + v - Ijlen);
195#endif
196 } else BN_bn2bin (Ij, I + j);
197 }
198 }
199
200err:
201 PKCS12err(PKCS12_F_PKCS12_KEY_GEN_UNI,ERR_R_MALLOC_FAILURE);
202
203end:
204 OPENSSL_free (Ai);
205 OPENSSL_free (B);
206 OPENSSL_free (D);
207 OPENSSL_free (I);
208 BN_free (Ij);
209 BN_free (Bpl1);
210 EVP_MD_CTX_cleanup(&ctx);
211 return ret;
212}
213#ifdef DEBUG_KEYGEN
214void h__dump (unsigned char *p, int len)
215{
216 for (; len --; p++) fprintf(stderr, "%02X", *p);
217 fprintf(stderr, "\n");
218}
219#endif
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