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-rw-r--r--src/lib/libcrypto/asn1/n_pkey.c435
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diff --git a/src/lib/libcrypto/asn1/n_pkey.c b/src/lib/libcrypto/asn1/n_pkey.c
deleted file mode 100644
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--- a/src/lib/libcrypto/asn1/n_pkey.c
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1/* $OpenBSD: n_pkey.c,v 1.35 2021/12/25 13:17:48 jsing Exp $ */
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 <string.h>
61
62#include <openssl/opensslconf.h>
63
64#ifndef OPENSSL_NO_RSA
65#include <openssl/asn1t.h>
66#include <openssl/err.h>
67#include <openssl/evp.h>
68#include <openssl/objects.h>
69#include <openssl/rsa.h>
70#include <openssl/x509.h>
71
72#include "evp_locl.h"
73#include "x509_lcl.h"
74
75#ifndef OPENSSL_NO_RC4
76
77typedef struct netscape_pkey_st {
78 long version;
79 X509_ALGOR *algor;
80 ASN1_OCTET_STRING *private_key;
81} NETSCAPE_PKEY;
82
83typedef struct netscape_encrypted_pkey_st {
84 ASN1_OCTET_STRING *os;
85 /* This is the same structure as DigestInfo so use it:
86 * although this isn't really anything to do with
87 * digests.
88 */
89 X509_SIG *enckey;
90} NETSCAPE_ENCRYPTED_PKEY;
91
92
93static const ASN1_AUX NETSCAPE_ENCRYPTED_PKEY_aux = {
94 .flags = ASN1_AFLG_BROKEN,
95};
96static const ASN1_TEMPLATE NETSCAPE_ENCRYPTED_PKEY_seq_tt[] = {
97 {
98 .offset = offsetof(NETSCAPE_ENCRYPTED_PKEY, os),
99 .field_name = "os",
100 .item = &ASN1_OCTET_STRING_it,
101 },
102 {
103 .offset = offsetof(NETSCAPE_ENCRYPTED_PKEY, enckey),
104 .field_name = "enckey",
105 .item = &X509_SIG_it,
106 },
107};
108
109const ASN1_ITEM NETSCAPE_ENCRYPTED_PKEY_it = {
110 .itype = ASN1_ITYPE_SEQUENCE,
111 .utype = V_ASN1_SEQUENCE,
112 .templates = NETSCAPE_ENCRYPTED_PKEY_seq_tt,
113 .tcount = sizeof(NETSCAPE_ENCRYPTED_PKEY_seq_tt) / sizeof(ASN1_TEMPLATE),
114 .funcs = &NETSCAPE_ENCRYPTED_PKEY_aux,
115 .size = sizeof(NETSCAPE_ENCRYPTED_PKEY),
116 .sname = "NETSCAPE_ENCRYPTED_PKEY",
117};
118
119NETSCAPE_ENCRYPTED_PKEY *NETSCAPE_ENCRYPTED_PKEY_new(void);
120void NETSCAPE_ENCRYPTED_PKEY_free(NETSCAPE_ENCRYPTED_PKEY *a);
121NETSCAPE_ENCRYPTED_PKEY *d2i_NETSCAPE_ENCRYPTED_PKEY(NETSCAPE_ENCRYPTED_PKEY **a, const unsigned char **in, long len);
122int i2d_NETSCAPE_ENCRYPTED_PKEY(const NETSCAPE_ENCRYPTED_PKEY *a, unsigned char **out);
123
124NETSCAPE_ENCRYPTED_PKEY *
125d2i_NETSCAPE_ENCRYPTED_PKEY(NETSCAPE_ENCRYPTED_PKEY **a, const unsigned char **in, long len)
126{
127 return (NETSCAPE_ENCRYPTED_PKEY *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
128 &NETSCAPE_ENCRYPTED_PKEY_it);
129}
130
131int
132i2d_NETSCAPE_ENCRYPTED_PKEY(const NETSCAPE_ENCRYPTED_PKEY *a, unsigned char **out)
133{
134 return ASN1_item_i2d((ASN1_VALUE *)a, out, &NETSCAPE_ENCRYPTED_PKEY_it);
135}
136
137NETSCAPE_ENCRYPTED_PKEY *
138NETSCAPE_ENCRYPTED_PKEY_new(void)
139{
140 return (NETSCAPE_ENCRYPTED_PKEY *)ASN1_item_new(&NETSCAPE_ENCRYPTED_PKEY_it);
141}
142
143void
144NETSCAPE_ENCRYPTED_PKEY_free(NETSCAPE_ENCRYPTED_PKEY *a)
145{
146 ASN1_item_free((ASN1_VALUE *)a, &NETSCAPE_ENCRYPTED_PKEY_it);
147}
148
149static const ASN1_TEMPLATE NETSCAPE_PKEY_seq_tt[] = {
150 {
151 .offset = offsetof(NETSCAPE_PKEY, version),
152 .field_name = "version",
153 .item = &LONG_it,
154 },
155 {
156 .offset = offsetof(NETSCAPE_PKEY, algor),
157 .field_name = "algor",
158 .item = &X509_ALGOR_it,
159 },
160 {
161 .offset = offsetof(NETSCAPE_PKEY, private_key),
162 .field_name = "private_key",
163 .item = &ASN1_OCTET_STRING_it,
164 },
165};
166
167const ASN1_ITEM NETSCAPE_PKEY_it = {
168 .itype = ASN1_ITYPE_SEQUENCE,
169 .utype = V_ASN1_SEQUENCE,
170 .templates = NETSCAPE_PKEY_seq_tt,
171 .tcount = sizeof(NETSCAPE_PKEY_seq_tt) / sizeof(ASN1_TEMPLATE),
172 .size = sizeof(NETSCAPE_PKEY),
173 .sname = "NETSCAPE_PKEY",
174};
175
176NETSCAPE_PKEY *NETSCAPE_PKEY_new(void);
177void NETSCAPE_PKEY_free(NETSCAPE_PKEY *a);
178NETSCAPE_PKEY *d2i_NETSCAPE_PKEY(NETSCAPE_PKEY **a, const unsigned char **in, long len);
179int i2d_NETSCAPE_PKEY(const NETSCAPE_PKEY *a, unsigned char **out);
180
181NETSCAPE_PKEY *
182d2i_NETSCAPE_PKEY(NETSCAPE_PKEY **a, const unsigned char **in, long len)
183{
184 return (NETSCAPE_PKEY *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
185 &NETSCAPE_PKEY_it);
186}
187
188int
189i2d_NETSCAPE_PKEY(const NETSCAPE_PKEY *a, unsigned char **out)
190{
191 return ASN1_item_i2d((ASN1_VALUE *)a, out, &NETSCAPE_PKEY_it);
192}
193
194NETSCAPE_PKEY *
195NETSCAPE_PKEY_new(void)
196{
197 return (NETSCAPE_PKEY *)ASN1_item_new(&NETSCAPE_PKEY_it);
198}
199
200void
201NETSCAPE_PKEY_free(NETSCAPE_PKEY *a)
202{
203 ASN1_item_free((ASN1_VALUE *)a, &NETSCAPE_PKEY_it);
204}
205
206static RSA *d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os,
207 int (*cb)(char *buf, int len, const char *prompt, int verify), int sgckey);
208
209int
210i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
211 int (*cb)(char *buf, int len, const char *prompt, int verify))
212{
213 return i2d_RSA_NET(a, pp, cb, 0);
214}
215
216int
217i2d_RSA_NET(const RSA *a, unsigned char **pp,
218 int (*cb)(char *buf, int len, const char *prompt, int verify), int sgckey)
219{
220 int i, j, ret = 0;
221 int rsalen, pkeylen, olen;
222 NETSCAPE_PKEY *pkey = NULL;
223 NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;
224 unsigned char buf[256], *zz;
225 unsigned char key[EVP_MAX_KEY_LENGTH];
226 EVP_CIPHER_CTX ctx;
227 EVP_CIPHER_CTX_init(&ctx);
228
229 if (a == NULL)
230 return (0);
231
232 if ((pkey = NETSCAPE_PKEY_new()) == NULL)
233 goto err;
234 if ((enckey = NETSCAPE_ENCRYPTED_PKEY_new()) == NULL)
235 goto err;
236 pkey->version = 0;
237
238 pkey->algor->algorithm = OBJ_nid2obj(NID_rsaEncryption);
239 if ((pkey->algor->parameter = ASN1_TYPE_new()) == NULL)
240 goto err;
241 pkey->algor->parameter->type = V_ASN1_NULL;
242
243 rsalen = i2d_RSAPrivateKey(a, NULL);
244
245 /* Fake some octet strings just for the initial length
246 * calculation.
247 */
248 pkey->private_key->length = rsalen;
249 pkeylen = i2d_NETSCAPE_PKEY(pkey, NULL);
250 enckey->enckey->digest->length = pkeylen;
251 enckey->os->length = 11; /* "private-key" */
252 enckey->enckey->algor->algorithm = OBJ_nid2obj(NID_rc4);
253 if ((enckey->enckey->algor->parameter = ASN1_TYPE_new()) == NULL)
254 goto err;
255 enckey->enckey->algor->parameter->type = V_ASN1_NULL;
256
257 if (pp == NULL) {
258 olen = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, NULL);
259 NETSCAPE_PKEY_free(pkey);
260 NETSCAPE_ENCRYPTED_PKEY_free(enckey);
261 return olen;
262 }
263
264 /* Since its RC4 encrypted length is actual length */
265 if ((zz = malloc(rsalen)) == NULL) {
266 ASN1error(ERR_R_MALLOC_FAILURE);
267 goto err;
268 }
269
270 pkey->private_key->data = zz;
271 /* Write out private key encoding */
272 i2d_RSAPrivateKey(a, &zz);
273
274 if ((zz = malloc(pkeylen)) == NULL) {
275 ASN1error(ERR_R_MALLOC_FAILURE);
276 goto err;
277 }
278
279 enckey->enckey->digest->data = zz;
280 if (!ASN1_STRING_set(enckey->os, "private-key", -1)) {
281 ASN1error(ERR_R_MALLOC_FAILURE);
282 goto err;
283 }
284 i2d_NETSCAPE_PKEY(pkey, &zz);
285
286 /* Wipe the private key encoding */
287 explicit_bzero(pkey->private_key->data, rsalen);
288
289 if (cb == NULL)
290 cb = EVP_read_pw_string;
291 i = cb((char *)buf, sizeof(buf), "Enter Private Key password:", 1);
292 if (i != 0) {
293 ASN1error(ASN1_R_BAD_PASSWORD_READ);
294 goto err;
295 }
296 i = strlen((char *)buf);
297 /* If the key is used for SGC the algorithm is modified a little. */
298 if (sgckey) {
299 if (!EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL))
300 goto err;
301 memcpy(buf + 16, "SGCKEYSALT", 10);
302 i = 26;
303 }
304
305 if (!EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i,1, key, NULL))
306 goto err;
307 explicit_bzero(buf, sizeof(buf));
308
309 /* Encrypt private key in place */
310 zz = enckey->enckey->digest->data;
311 if (!EVP_EncryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL))
312 goto err;
313 if (!EVP_EncryptUpdate(&ctx, zz, &i, zz, pkeylen))
314 goto err;
315 if (!EVP_EncryptFinal_ex(&ctx, zz + i, &j))
316 goto err;
317
318 ret = i2d_NETSCAPE_ENCRYPTED_PKEY(enckey, pp);
319 err:
320 EVP_CIPHER_CTX_cleanup(&ctx);
321 NETSCAPE_ENCRYPTED_PKEY_free(enckey);
322 NETSCAPE_PKEY_free(pkey);
323 return (ret);
324}
325
326
327RSA *
328d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
329 int (*cb)(char *buf, int len, const char *prompt, int verify))
330{
331 return d2i_RSA_NET(a, pp, length, cb, 0);
332}
333
334RSA *
335d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
336 int (*cb)(char *buf, int len, const char *prompt, int verify), int sgckey)
337{
338 RSA *ret = NULL;
339 const unsigned char *p;
340 NETSCAPE_ENCRYPTED_PKEY *enckey = NULL;
341
342 p = *pp;
343
344 enckey = d2i_NETSCAPE_ENCRYPTED_PKEY(NULL, &p, length);
345 if (!enckey) {
346 ASN1error(ASN1_R_DECODING_ERROR);
347 return NULL;
348 }
349
350 /* XXX 11 == strlen("private-key") */
351 if (enckey->os->length != 11 ||
352 memcmp("private-key", enckey->os->data, 11) != 0) {
353 ASN1error(ASN1_R_PRIVATE_KEY_HEADER_MISSING);
354 goto err;
355 }
356 if (OBJ_obj2nid(enckey->enckey->algor->algorithm) != NID_rc4) {
357 ASN1error(ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM);
358 goto err;
359 }
360 if (cb == NULL)
361 cb = EVP_read_pw_string;
362 if ((ret = d2i_RSA_NET_2(a, enckey->enckey->digest, cb,
363 sgckey)) == NULL)
364 goto err;
365
366 *pp = p;
367
368 err:
369 NETSCAPE_ENCRYPTED_PKEY_free(enckey);
370 return ret;
371
372}
373
374static RSA *
375d2i_RSA_NET_2(RSA **a, ASN1_OCTET_STRING *os,
376 int (*cb)(char *buf, int len, const char *prompt, int verify), int sgckey)
377{
378 NETSCAPE_PKEY *pkey = NULL;
379 RSA *ret = NULL;
380 int i, j;
381 unsigned char buf[256];
382 const unsigned char *zz;
383 unsigned char key[EVP_MAX_KEY_LENGTH];
384 EVP_CIPHER_CTX ctx;
385 EVP_CIPHER_CTX_init(&ctx);
386
387 i=cb((char *)buf, sizeof(buf), "Enter Private Key password:",0);
388 if (i != 0) {
389 ASN1error(ASN1_R_BAD_PASSWORD_READ);
390 goto err;
391 }
392
393 i = strlen((char *)buf);
394 if (sgckey){
395 if (!EVP_Digest(buf, i, buf, NULL, EVP_md5(), NULL))
396 goto err;
397 memcpy(buf + 16, "SGCKEYSALT", 10);
398 i = 26;
399 }
400
401 if (!EVP_BytesToKey(EVP_rc4(), EVP_md5(), NULL, buf, i,1, key, NULL))
402 goto err;
403 explicit_bzero(buf, sizeof(buf));
404
405 if (!EVP_DecryptInit_ex(&ctx, EVP_rc4(), NULL, key, NULL))
406 goto err;
407 if (!EVP_DecryptUpdate(&ctx, os->data, &i, os->data, os->length))
408 goto err;
409 if (!EVP_DecryptFinal_ex(&ctx, &(os->data[i]), &j))
410 goto err;
411 os->length = i + j;
412
413 zz = os->data;
414
415 if ((pkey = d2i_NETSCAPE_PKEY(NULL, &zz, os->length)) == NULL) {
416 ASN1error(ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY);
417 goto err;
418 }
419
420 zz = pkey->private_key->data;
421 if ((ret = d2i_RSAPrivateKey(a, &zz,
422 pkey->private_key->length)) == NULL) {
423 ASN1error(ASN1_R_UNABLE_TO_DECODE_RSA_KEY);
424 goto err;
425 }
426
427 err:
428 EVP_CIPHER_CTX_cleanup(&ctx);
429 NETSCAPE_PKEY_free(pkey);
430 return (ret);
431}
432
433#endif /* OPENSSL_NO_RC4 */
434
435#endif
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