1 /* $OpenBSD: rsa_test.c,v 1.4 2021/11/25 16:51:31 tb Exp $ */
2 /*
3 * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
4 *
5 * Licensed under the OpenSSL license (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11 /* test vectors from p1ovect1.txt */
12
13 #include <stdio.h>
14 #include <string.h>
15
16 #include <openssl/crypto.h>
17 #include <openssl/err.h>
18 #include <openssl/rand.h>
19 #include <openssl/bn.h>
20
21 #ifdef OPENSSL_NO_RSA
main(int argc,char * argv[])22 int main(int argc, char *argv[])
23 {
24 printf("No RSA support\n");
25 return (0);
26 }
27 #else
28 # include <openssl/rsa.h>
29
30 static int
key1(RSA * key,unsigned char * c)31 key1(RSA *key, unsigned char *c)
32 {
33 static unsigned char n[] =
34 "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"
35 "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"
36 "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"
37 "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"
38 "\xF5";
39
40 static unsigned char e[] = "\x11";
41
42 static unsigned char d[] =
43 "\x0A\x03\x37\x48\x62\x64\x87\x69\x5F\x5F\x30\xBC\x38\xB9\x8B\x44"
44 "\xC2\xCD\x2D\xFF\x43\x40\x98\xCD\x20\xD8\xA1\x38\xD0\x90\xBF\x64"
45 "\x79\x7C\x3F\xA7\xA2\xCD\xCB\x3C\xD1\xE0\xBD\xBA\x26\x54\xB4\xF9"
46 "\xDF\x8E\x8A\xE5\x9D\x73\x3D\x9F\x33\xB3\x01\x62\x4A\xFD\x1D\x51";
47
48 static unsigned char p[] =
49 "\x00\xD8\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
50 "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x12"
51 "\x0D";
52
53 static unsigned char q[] =
54 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
55 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
56 "\x89";
57
58 static unsigned char dmp1[] =
59 "\x59\x0B\x95\x72\xA2\xC2\xA9\xC4\x06\x05\x9D\xC2\xAB\x2F\x1D\xAF"
60 "\xEB\x7E\x8B\x4F\x10\xA7\x54\x9E\x8E\xED\xF5\xB4\xFC\xE0\x9E\x05";
61
62 static unsigned char dmq1[] =
63 "\x00\x8E\x3C\x05\x21\xFE\x15\xE0\xEA\x06\xA3\x6F\xF0\xF1\x0C\x99"
64 "\x52\xC3\x5B\x7A\x75\x14\xFD\x32\x38\xB8\x0A\xAD\x52\x98\x62\x8D"
65 "\x51";
66
67 static unsigned char iqmp[] =
68 "\x36\x3F\xF7\x18\x9D\xA8\xE9\x0B\x1D\x34\x1F\x71\xD0\x9B\x76\xA8"
69 "\xA9\x43\xE1\x1D\x10\xB2\x4D\x24\x9F\x2D\xEA\xFE\xF8\x0C\x18\x26";
70
71 static unsigned char ctext_ex[] =
72 "\x1b\x8f\x05\xf9\xca\x1a\x79\x52\x6e\x53\xf3\xcc\x51\x4f\xdb\x89"
73 "\x2b\xfb\x91\x93\x23\x1e\x78\xb9\x92\xe6\x8d\x50\xa4\x80\xcb\x52"
74 "\x33\x89\x5c\x74\x95\x8d\x5d\x02\xab\x8c\x0f\xd0\x40\xeb\x58\x44"
75 "\xb0\x05\xc3\x9e\xd8\x27\x4a\x9d\xbf\xa8\x06\x71\x40\x94\x39\xd2";
76
77 BIGNUM *bn_n = NULL, *bn_e = NULL, *bn_d = NULL;
78 BIGNUM *bn_p = NULL, *bn_q = NULL;
79 BIGNUM *bn_dmp1 = NULL, *bn_dmq1 = NULL, *bn_iqmp = NULL;
80
81 bn_n = BN_bin2bn(n, sizeof(n) - 1, NULL);
82 bn_e = BN_bin2bn(e, sizeof(e) - 1, NULL);
83 bn_d = BN_bin2bn(d, sizeof(d) - 1, NULL);
84 if (bn_n == NULL || bn_e == NULL || bn_d == NULL)
85 goto err;
86 if (!RSA_set0_key(key, bn_n, bn_e, bn_d))
87 goto err;
88 bn_n = NULL;
89 bn_e = NULL;
90 bn_d = NULL;
91
92 bn_p = BN_bin2bn(p, sizeof(p) - 1, NULL);
93 bn_q = BN_bin2bn(q, sizeof(q) - 1, NULL);
94 if (bn_p == NULL || bn_q == NULL)
95 goto err;
96 if (!RSA_set0_factors(key, bn_p, bn_q))
97 goto err;
98 bn_p = NULL;
99 bn_q = NULL;
100
101 bn_dmp1 = BN_bin2bn(dmp1, sizeof(dmp1) - 1, NULL);
102 bn_dmq1 = BN_bin2bn(dmq1, sizeof(dmq1) - 1, NULL);
103 bn_iqmp = BN_bin2bn(iqmp, sizeof(iqmp) - 1, NULL);
104 if (bn_dmp1 == NULL || bn_dmq1 == NULL || bn_iqmp == NULL)
105 goto err;
106 if (!RSA_set0_crt_params(key, bn_dmp1, bn_dmq1, bn_iqmp))
107 goto err;
108 bn_dmp1 = NULL;
109 bn_dmq1 = NULL;
110 bn_iqmp = NULL;
111
112 memcpy(c, ctext_ex, sizeof(ctext_ex) - 1);
113 return sizeof(ctext_ex) - 1;
114
115 err:
116 BN_free(bn_n);
117 BN_free(bn_e);
118 BN_free(bn_d);
119 BN_free(bn_p);
120 BN_free(bn_q);
121 BN_free(bn_dmp1);
122 BN_free(bn_dmq1);
123 BN_free(bn_iqmp);
124
125 return -1;
126 }
127
128 static int
key2(RSA * key,unsigned char * c)129 key2(RSA *key, unsigned char *c)
130 {
131 static unsigned char n[] =
132 "\x00\xA3\x07\x9A\x90\xDF\x0D\xFD\x72\xAC\x09\x0C\xCC\x2A\x78\xB8"
133 "\x74\x13\x13\x3E\x40\x75\x9C\x98\xFA\xF8\x20\x4F\x35\x8A\x0B\x26"
134 "\x3C\x67\x70\xE7\x83\xA9\x3B\x69\x71\xB7\x37\x79\xD2\x71\x7B\xE8"
135 "\x34\x77\xCF";
136
137 static unsigned char e[] = "\x3";
138
139 static unsigned char d[] =
140 "\x6C\xAF\xBC\x60\x94\xB3\xFE\x4C\x72\xB0\xB3\x32\xC6\xFB\x25\xA2"
141 "\xB7\x62\x29\x80\x4E\x68\x65\xFC\xA4\x5A\x74\xDF\x0F\x8F\xB8\x41"
142 "\x3B\x52\xC0\xD0\xE5\x3D\x9B\x59\x0F\xF1\x9B\xE7\x9F\x49\xDD\x21"
143 "\xE5\xEB";
144
145 static unsigned char p[] =
146 "\x00\xCF\x20\x35\x02\x8B\x9D\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92"
147 "\xEA\x0D\xA3\xB4\x32\x04\xB5\xCF\xCE\x91";
148
149 static unsigned char q[] =
150 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
151 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5F";
152
153 static unsigned char dmp1[] =
154 "\x00\x8A\x15\x78\xAC\x5D\x13\xAF\x10\x2B\x22\xB9\x99\xCD\x74\x61"
155 "\xF1\x5E\x6D\x22\xCC\x03\x23\xDF\xDF\x0B";
156
157 static unsigned char dmq1[] =
158 "\x00\x86\x55\x21\x4A\xC5\x4D\x8D\x4E\xCD\x61\x77\xF1\xC7\x36\x90"
159 "\xCE\x2A\x48\x2C\x8B\x05\x99\xCB\xE0\x3F";
160
161 static unsigned char iqmp[] =
162 "\x00\x83\xEF\xEF\xB8\xA9\xA4\x0D\x1D\xB6\xED\x98\xAD\x84\xED\x13"
163 "\x35\xDC\xC1\x08\xF3\x22\xD0\x57\xCF\x8D";
164
165 static unsigned char ctext_ex[] =
166 "\x14\xbd\xdd\x28\xc9\x83\x35\x19\x23\x80\xe8\xe5\x49\xb1\x58\x2a"
167 "\x8b\x40\xb4\x48\x6d\x03\xa6\xa5\x31\x1f\x1f\xd5\xf0\xa1\x80\xe4"
168 "\x17\x53\x03\x29\xa9\x34\x90\x74\xb1\x52\x13\x54\x29\x08\x24\x52"
169 "\x62\x51";
170
171 BIGNUM *bn_n = NULL, *bn_e = NULL, *bn_d = NULL;
172 BIGNUM *bn_p = NULL, *bn_q = NULL;
173 BIGNUM *bn_dmp1 = NULL, *bn_dmq1 = NULL, *bn_iqmp = NULL;
174
175 bn_n = BN_bin2bn(n, sizeof(n) - 1, NULL);
176 bn_e = BN_bin2bn(e, sizeof(e) - 1, NULL);
177 bn_d = BN_bin2bn(d, sizeof(d) - 1, NULL);
178 if (bn_n == NULL || bn_e == NULL || bn_d == NULL)
179 goto err;
180 if (!RSA_set0_key(key, bn_n, bn_e, bn_d))
181 goto err;
182 bn_n = NULL;
183 bn_e = NULL;
184 bn_d = NULL;
185
186 bn_p = BN_bin2bn(p, sizeof(p) - 1, NULL);
187 bn_q = BN_bin2bn(q, sizeof(q) - 1, NULL);
188 if (bn_p == NULL || bn_q == NULL)
189 goto err;
190 if (!RSA_set0_factors(key, bn_p, bn_q))
191 goto err;
192 bn_p = NULL;
193 bn_q = NULL;
194
195 bn_dmp1 = BN_bin2bn(dmp1, sizeof(dmp1) - 1, NULL);
196 bn_dmq1 = BN_bin2bn(dmq1, sizeof(dmq1) - 1, NULL);
197 bn_iqmp = BN_bin2bn(iqmp, sizeof(iqmp) - 1, NULL);
198 if (bn_dmp1 == NULL || bn_dmq1 == NULL || bn_iqmp == NULL)
199 goto err;
200 if (!RSA_set0_crt_params(key, bn_dmp1, bn_dmq1, bn_iqmp))
201 goto err;
202 bn_dmp1 = NULL;
203 bn_dmq1 = NULL;
204 bn_iqmp = NULL;
205
206 memcpy(c, ctext_ex, sizeof(ctext_ex) - 1);
207 return sizeof(ctext_ex) - 1;
208
209 err:
210 BN_free(bn_n);
211 BN_free(bn_e);
212 BN_free(bn_d);
213 BN_free(bn_p);
214 BN_free(bn_q);
215 BN_free(bn_dmp1);
216 BN_free(bn_dmq1);
217 BN_free(bn_iqmp);
218
219 return -1;
220 }
221
222 static int
key3(RSA * key,unsigned char * c)223 key3(RSA *key, unsigned char *c)
224 {
225 static unsigned char n[] =
226 "\x00\xBB\xF8\x2F\x09\x06\x82\xCE\x9C\x23\x38\xAC\x2B\x9D\xA8\x71"
227 "\xF7\x36\x8D\x07\xEE\xD4\x10\x43\xA4\x40\xD6\xB6\xF0\x74\x54\xF5"
228 "\x1F\xB8\xDF\xBA\xAF\x03\x5C\x02\xAB\x61\xEA\x48\xCE\xEB\x6F\xCD"
229 "\x48\x76\xED\x52\x0D\x60\xE1\xEC\x46\x19\x71\x9D\x8A\x5B\x8B\x80"
230 "\x7F\xAF\xB8\xE0\xA3\xDF\xC7\x37\x72\x3E\xE6\xB4\xB7\xD9\x3A\x25"
231 "\x84\xEE\x6A\x64\x9D\x06\x09\x53\x74\x88\x34\xB2\x45\x45\x98\x39"
232 "\x4E\xE0\xAA\xB1\x2D\x7B\x61\xA5\x1F\x52\x7A\x9A\x41\xF6\xC1\x68"
233 "\x7F\xE2\x53\x72\x98\xCA\x2A\x8F\x59\x46\xF8\xE5\xFD\x09\x1D\xBD"
234 "\xCB";
235
236 static unsigned char e[] = "\x11";
237
238 static unsigned char d[] =
239 "\x00\xA5\xDA\xFC\x53\x41\xFA\xF2\x89\xC4\xB9\x88\xDB\x30\xC1\xCD"
240 "\xF8\x3F\x31\x25\x1E\x06\x68\xB4\x27\x84\x81\x38\x01\x57\x96\x41"
241 "\xB2\x94\x10\xB3\xC7\x99\x8D\x6B\xC4\x65\x74\x5E\x5C\x39\x26\x69"
242 "\xD6\x87\x0D\xA2\xC0\x82\xA9\x39\xE3\x7F\xDC\xB8\x2E\xC9\x3E\xDA"
243 "\xC9\x7F\xF3\xAD\x59\x50\xAC\xCF\xBC\x11\x1C\x76\xF1\xA9\x52\x94"
244 "\x44\xE5\x6A\xAF\x68\xC5\x6C\x09\x2C\xD3\x8D\xC3\xBE\xF5\xD2\x0A"
245 "\x93\x99\x26\xED\x4F\x74\xA1\x3E\xDD\xFB\xE1\xA1\xCE\xCC\x48\x94"
246 "\xAF\x94\x28\xC2\xB7\xB8\x88\x3F\xE4\x46\x3A\x4B\xC8\x5B\x1C\xB3"
247 "\xC1";
248
249 static unsigned char p[] =
250 "\x00\xEE\xCF\xAE\x81\xB1\xB9\xB3\xC9\x08\x81\x0B\x10\xA1\xB5\x60"
251 "\x01\x99\xEB\x9F\x44\xAE\xF4\xFD\xA4\x93\xB8\x1A\x9E\x3D\x84\xF6"
252 "\x32\x12\x4E\xF0\x23\x6E\x5D\x1E\x3B\x7E\x28\xFA\xE7\xAA\x04\x0A"
253 "\x2D\x5B\x25\x21\x76\x45\x9D\x1F\x39\x75\x41\xBA\x2A\x58\xFB\x65"
254 "\x99";
255
256 static unsigned char q[] =
257 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
258 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
259 "\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
260 "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x15"
261 "\x03";
262
263 static unsigned char dmp1[] =
264 "\x54\x49\x4C\xA6\x3E\xBA\x03\x37\xE4\xE2\x40\x23\xFC\xD6\x9A\x5A"
265 "\xEB\x07\xDD\xDC\x01\x83\xA4\xD0\xAC\x9B\x54\xB0\x51\xF2\xB1\x3E"
266 "\xD9\x49\x09\x75\xEA\xB7\x74\x14\xFF\x59\xC1\xF7\x69\x2E\x9A\x2E"
267 "\x20\x2B\x38\xFC\x91\x0A\x47\x41\x74\xAD\xC9\x3C\x1F\x67\xC9\x81";
268
269 static unsigned char dmq1[] =
270 "\x47\x1E\x02\x90\xFF\x0A\xF0\x75\x03\x51\xB7\xF8\x78\x86\x4C\xA9"
271 "\x61\xAD\xBD\x3A\x8A\x7E\x99\x1C\x5C\x05\x56\xA9\x4C\x31\x46\xA7"
272 "\xF9\x80\x3F\x8F\x6F\x8A\xE3\x42\xE9\x31\xFD\x8A\xE4\x7A\x22\x0D"
273 "\x1B\x99\xA4\x95\x84\x98\x07\xFE\x39\xF9\x24\x5A\x98\x36\xDA\x3D";
274
275 static unsigned char iqmp[] =
276 "\x00\xB0\x6C\x4F\xDA\xBB\x63\x01\x19\x8D\x26\x5B\xDB\xAE\x94\x23"
277 "\xB3\x80\xF2\x71\xF7\x34\x53\x88\x50\x93\x07\x7F\xCD\x39\xE2\x11"
278 "\x9F\xC9\x86\x32\x15\x4F\x58\x83\xB1\x67\xA9\x67\xBF\x40\x2B\x4E"
279 "\x9E\x2E\x0F\x96\x56\xE6\x98\xEA\x36\x66\xED\xFB\x25\x79\x80\x39"
280 "\xF7";
281
282 static unsigned char ctext_ex[] =
283 "\xb8\x24\x6b\x56\xa6\xed\x58\x81\xae\xb5\x85\xd9\xa2\x5b\x2a\xd7"
284 "\x90\xc4\x17\xe0\x80\x68\x1b\xf1\xac\x2b\xc3\xde\xb6\x9d\x8b\xce"
285 "\xf0\xc4\x36\x6f\xec\x40\x0a\xf0\x52\xa7\x2e\x9b\x0e\xff\xb5\xb3"
286 "\xf2\xf1\x92\xdb\xea\xca\x03\xc1\x27\x40\x05\x71\x13\xbf\x1f\x06"
287 "\x69\xac\x22\xe9\xf3\xa7\x85\x2e\x3c\x15\xd9\x13\xca\xb0\xb8\x86"
288 "\x3a\x95\xc9\x92\x94\xce\x86\x74\x21\x49\x54\x61\x03\x46\xf4\xd4"
289 "\x74\xb2\x6f\x7c\x48\xb4\x2e\xe6\x8e\x1f\x57\x2a\x1f\xc4\x02\x6a"
290 "\xc4\x56\xb4\xf5\x9f\x7b\x62\x1e\xa1\xb9\xd8\x8f\x64\x20\x2f\xb1";
291
292 BIGNUM *bn_n = NULL, *bn_e = NULL, *bn_d = NULL;
293 BIGNUM *bn_p = NULL, *bn_q = NULL;
294 BIGNUM *bn_dmp1 = NULL, *bn_dmq1 = NULL, *bn_iqmp = NULL;
295
296 bn_n = BN_bin2bn(n, sizeof(n) - 1, NULL);
297 bn_e = BN_bin2bn(e, sizeof(e) - 1, NULL);
298 bn_d = BN_bin2bn(d, sizeof(d) - 1, NULL);
299 if (bn_n == NULL || bn_e == NULL || bn_d == NULL)
300 goto err;
301 if (!RSA_set0_key(key, bn_n, bn_e, bn_d))
302 goto err;
303 bn_n = NULL;
304 bn_e = NULL;
305 bn_d = NULL;
306
307 bn_p = BN_bin2bn(p, sizeof(p) - 1, NULL);
308 bn_q = BN_bin2bn(q, sizeof(q) - 1, NULL);
309 if (bn_p == NULL || bn_q == NULL)
310 goto err;
311 if (!RSA_set0_factors(key, bn_p, bn_q))
312 goto err;
313 bn_p = NULL;
314 bn_q = NULL;
315
316 bn_dmp1 = BN_bin2bn(dmp1, sizeof(dmp1) - 1, NULL);
317 bn_dmq1 = BN_bin2bn(dmq1, sizeof(dmq1) - 1, NULL);
318 bn_iqmp = BN_bin2bn(iqmp, sizeof(iqmp) - 1, NULL);
319 if (bn_dmp1 == NULL || bn_dmq1 == NULL || bn_iqmp == NULL)
320 goto err;
321 if (!RSA_set0_crt_params(key, bn_dmp1, bn_dmq1, bn_iqmp))
322 goto err;
323 bn_dmp1 = NULL;
324 bn_dmq1 = NULL;
325 bn_iqmp = NULL;
326
327 memcpy(c, ctext_ex, sizeof(ctext_ex) - 1);
328
329 return sizeof(ctext_ex) - 1;
330
331 err:
332 BN_free(bn_n);
333 BN_free(bn_e);
334 BN_free(bn_d);
335 BN_free(bn_p);
336 BN_free(bn_q);
337 BN_free(bn_dmp1);
338 BN_free(bn_dmq1);
339 BN_free(bn_iqmp);
340
341 return -1;
342 }
343
344 static int
pad_unknown(void)345 pad_unknown(void)
346 {
347 unsigned long l;
348 while ((l = ERR_get_error()) != 0)
349 if (ERR_GET_REASON(l) == RSA_R_UNKNOWN_PADDING_TYPE)
350 return (1);
351 return (0);
352 }
353
354 int
main(int argc,char * argv[])355 main(int argc, char *argv[])
356 {
357 int err = 0;
358 int v;
359 RSA *key;
360 unsigned char ptext[256];
361 unsigned char ctext[256];
362 static unsigned char ptext_ex[] = "\x54\x85\x9b\x34\x2c\x49\xea\x2a";
363 unsigned char ctext_ex[256];
364 int plen;
365 int clen = 0;
366 int num;
367 int n;
368
369 plen = sizeof(ptext_ex) - 1;
370
371 for (v = 0; v < 3; v++) {
372 key = RSA_new();
373 switch (v) {
374 case 0:
375 clen = key1(key, ctext_ex);
376 break;
377 case 1:
378 clen = key2(key, ctext_ex);
379 break;
380 case 2:
381 clen = key3(key, ctext_ex);
382 break;
383 }
384
385 if (clen <= 0) {
386 printf("failed to generate key%d\n", v);
387 err = 1;
388 goto next;
389 }
390
391 num = RSA_public_encrypt(plen, ptext_ex, ctext, key,
392 RSA_PKCS1_PADDING);
393 if (num != clen) {
394 printf("PKCS#1 v1.5 encryption failed!\n");
395 err = 1;
396 goto oaep;
397 }
398
399 num = RSA_private_decrypt(num, ctext, ptext, key,
400 RSA_PKCS1_PADDING);
401 if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
402 printf("PKCS#1 v1.5 decryption failed!\n");
403 err = 1;
404 } else
405 printf("PKCS #1 v1.5 encryption/decryption ok\n");
406
407 oaep:
408 ERR_clear_error();
409 num = RSA_public_encrypt(plen, ptext_ex, ctext, key,
410 RSA_PKCS1_OAEP_PADDING);
411 if (num == -1 && pad_unknown()) {
412 printf("No OAEP support\n");
413 goto next;
414 }
415 if (num != clen) {
416 printf("OAEP encryption failed!\n");
417 err = 1;
418 goto next;
419 }
420
421 num = RSA_private_decrypt(num, ctext, ptext, key,
422 RSA_PKCS1_OAEP_PADDING);
423 if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
424 printf("OAEP decryption (encrypted data) failed!\n");
425 err = 1;
426 } else if (memcmp(ctext, ctext_ex, num) == 0)
427 printf("OAEP test vector %d passed!\n", v);
428
429 /*
430 * Different ciphertexts (rsa_oaep.c without -DPKCS_TESTVECT).
431 * Try decrypting ctext_ex
432 */
433
434 num = RSA_private_decrypt(clen, ctext_ex, ptext, key,
435 RSA_PKCS1_OAEP_PADDING);
436 if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
437 printf("OAEP decryption (test vector data) failed!\n");
438 err = 1;
439 } else
440 printf("OAEP encryption/decryption ok\n");
441
442 /* Try decrypting corrupted ciphertexts. */
443 for (n = 0; n < clen; ++n) {
444 ctext[n] ^= 1;
445 num = RSA_private_decrypt(clen, ctext, ptext, key,
446 RSA_PKCS1_OAEP_PADDING);
447 if (num > 0) {
448 printf("Corrupt data decrypted!\n");
449 err = 1;
450 break;
451 }
452 ctext[n] ^= 1;
453 }
454
455 /* Test truncated ciphertexts, as well as negative length. */
456 for (n = -1; n < clen; ++n) {
457 num = RSA_private_decrypt(n, ctext, ptext, key,
458 RSA_PKCS1_OAEP_PADDING);
459 if (num > 0) {
460 printf("Truncated data decrypted!\n");
461 err = 1;
462 break;
463 }
464 }
465
466 next:
467 RSA_free(key);
468 }
469
470 return err;
471 }
472 #endif
473