1 /*
2 * Copyright 1999-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /* test vectors from p1ovect1.txt */
11
12 /*
13 * RSA low level APIs are deprecated for public use, but still ok for
14 * internal use.
15 */
16 #include "internal/deprecated.h"
17
18 #include <stdio.h>
19 #include <string.h>
20
21 #include "internal/nelem.h"
22
23 #include <openssl/crypto.h>
24 #include <openssl/err.h>
25 #include <openssl/rand.h>
26 #include <openssl/bn.h>
27
28 #include "testutil.h"
29
30 #include <openssl/rsa.h>
31
32 #define SetKey \
33 RSA_set0_key(key, \
34 BN_bin2bn(n, sizeof(n)-1, NULL), \
35 BN_bin2bn(e, sizeof(e)-1, NULL), \
36 BN_bin2bn(d, sizeof(d)-1, NULL)); \
37 RSA_set0_factors(key, \
38 BN_bin2bn(p, sizeof(p)-1, NULL), \
39 BN_bin2bn(q, sizeof(q)-1, NULL)); \
40 RSA_set0_crt_params(key, \
41 BN_bin2bn(dmp1, sizeof(dmp1)-1, NULL), \
42 BN_bin2bn(dmq1, sizeof(dmq1)-1, NULL), \
43 BN_bin2bn(iqmp, sizeof(iqmp)-1, NULL)); \
44 if (c != NULL) \
45 memcpy(c, ctext_ex, sizeof(ctext_ex) - 1); \
46 return sizeof(ctext_ex) - 1;
47
key1(RSA * key,unsigned char * c)48 static int key1(RSA *key, unsigned char *c)
49 {
50 static unsigned char n[] =
51 "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"
52 "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"
53 "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"
54 "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"
55 "\xF5";
56
57 static unsigned char e[] = "\x11";
58
59 static unsigned char d[] =
60 "\x0A\x03\x37\x48\x62\x64\x87\x69\x5F\x5F\x30\xBC\x38\xB9\x8B\x44"
61 "\xC2\xCD\x2D\xFF\x43\x40\x98\xCD\x20\xD8\xA1\x38\xD0\x90\xBF\x64"
62 "\x79\x7C\x3F\xA7\xA2\xCD\xCB\x3C\xD1\xE0\xBD\xBA\x26\x54\xB4\xF9"
63 "\xDF\x8E\x8A\xE5\x9D\x73\x3D\x9F\x33\xB3\x01\x62\x4A\xFD\x1D\x51";
64
65 static unsigned char p[] =
66 "\x00\xD8\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
67 "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x12"
68 "\x0D";
69
70 static unsigned char q[] =
71 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
72 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
73 "\x89";
74
75 static unsigned char dmp1[] =
76 "\x59\x0B\x95\x72\xA2\xC2\xA9\xC4\x06\x05\x9D\xC2\xAB\x2F\x1D\xAF"
77 "\xEB\x7E\x8B\x4F\x10\xA7\x54\x9E\x8E\xED\xF5\xB4\xFC\xE0\x9E\x05";
78
79 static unsigned char dmq1[] =
80 "\x00\x8E\x3C\x05\x21\xFE\x15\xE0\xEA\x06\xA3\x6F\xF0\xF1\x0C\x99"
81 "\x52\xC3\x5B\x7A\x75\x14\xFD\x32\x38\xB8\x0A\xAD\x52\x98\x62\x8D"
82 "\x51";
83
84 static unsigned char iqmp[] =
85 "\x36\x3F\xF7\x18\x9D\xA8\xE9\x0B\x1D\x34\x1F\x71\xD0\x9B\x76\xA8"
86 "\xA9\x43\xE1\x1D\x10\xB2\x4D\x24\x9F\x2D\xEA\xFE\xF8\x0C\x18\x26";
87
88 static unsigned char ctext_ex[] =
89 "\x1b\x8f\x05\xf9\xca\x1a\x79\x52\x6e\x53\xf3\xcc\x51\x4f\xdb\x89"
90 "\x2b\xfb\x91\x93\x23\x1e\x78\xb9\x92\xe6\x8d\x50\xa4\x80\xcb\x52"
91 "\x33\x89\x5c\x74\x95\x8d\x5d\x02\xab\x8c\x0f\xd0\x40\xeb\x58\x44"
92 "\xb0\x05\xc3\x9e\xd8\x27\x4a\x9d\xbf\xa8\x06\x71\x40\x94\x39\xd2";
93
94 SetKey;
95 }
96
key2(RSA * key,unsigned char * c)97 static int key2(RSA *key, unsigned char *c)
98 {
99 static unsigned char n[] =
100 "\x00\xA3\x07\x9A\x90\xDF\x0D\xFD\x72\xAC\x09\x0C\xCC\x2A\x78\xB8"
101 "\x74\x13\x13\x3E\x40\x75\x9C\x98\xFA\xF8\x20\x4F\x35\x8A\x0B\x26"
102 "\x3C\x67\x70\xE7\x83\xA9\x3B\x69\x71\xB7\x37\x79\xD2\x71\x7B\xE8"
103 "\x34\x77\xCF";
104
105 static unsigned char e[] = "\x3";
106
107 static unsigned char d[] =
108 "\x6C\xAF\xBC\x60\x94\xB3\xFE\x4C\x72\xB0\xB3\x32\xC6\xFB\x25\xA2"
109 "\xB7\x62\x29\x80\x4E\x68\x65\xFC\xA4\x5A\x74\xDF\x0F\x8F\xB8\x41"
110 "\x3B\x52\xC0\xD0\xE5\x3D\x9B\x59\x0F\xF1\x9B\xE7\x9F\x49\xDD\x21"
111 "\xE5\xEB";
112
113 static unsigned char p[] =
114 "\x00\xCF\x20\x35\x02\x8B\x9D\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92"
115 "\xEA\x0D\xA3\xB4\x32\x04\xB5\xCF\xCE\x91";
116
117 static unsigned char q[] =
118 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
119 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5F";
120
121 static unsigned char dmp1[] =
122 "\x00\x8A\x15\x78\xAC\x5D\x13\xAF\x10\x2B\x22\xB9\x99\xCD\x74\x61"
123 "\xF1\x5E\x6D\x22\xCC\x03\x23\xDF\xDF\x0B";
124
125 static unsigned char dmq1[] =
126 "\x00\x86\x55\x21\x4A\xC5\x4D\x8D\x4E\xCD\x61\x77\xF1\xC7\x36\x90"
127 "\xCE\x2A\x48\x2C\x8B\x05\x99\xCB\xE0\x3F";
128
129 static unsigned char iqmp[] =
130 "\x00\x83\xEF\xEF\xB8\xA9\xA4\x0D\x1D\xB6\xED\x98\xAD\x84\xED\x13"
131 "\x35\xDC\xC1\x08\xF3\x22\xD0\x57\xCF\x8D";
132
133 static unsigned char ctext_ex[] =
134 "\x14\xbd\xdd\x28\xc9\x83\x35\x19\x23\x80\xe8\xe5\x49\xb1\x58\x2a"
135 "\x8b\x40\xb4\x48\x6d\x03\xa6\xa5\x31\x1f\x1f\xd5\xf0\xa1\x80\xe4"
136 "\x17\x53\x03\x29\xa9\x34\x90\x74\xb1\x52\x13\x54\x29\x08\x24\x52"
137 "\x62\x51";
138
139 SetKey;
140 }
141
key3(RSA * key,unsigned char * c)142 static int key3(RSA *key, unsigned char *c)
143 {
144 static unsigned char n[] =
145 "\x00\xBB\xF8\x2F\x09\x06\x82\xCE\x9C\x23\x38\xAC\x2B\x9D\xA8\x71"
146 "\xF7\x36\x8D\x07\xEE\xD4\x10\x43\xA4\x40\xD6\xB6\xF0\x74\x54\xF5"
147 "\x1F\xB8\xDF\xBA\xAF\x03\x5C\x02\xAB\x61\xEA\x48\xCE\xEB\x6F\xCD"
148 "\x48\x76\xED\x52\x0D\x60\xE1\xEC\x46\x19\x71\x9D\x8A\x5B\x8B\x80"
149 "\x7F\xAF\xB8\xE0\xA3\xDF\xC7\x37\x72\x3E\xE6\xB4\xB7\xD9\x3A\x25"
150 "\x84\xEE\x6A\x64\x9D\x06\x09\x53\x74\x88\x34\xB2\x45\x45\x98\x39"
151 "\x4E\xE0\xAA\xB1\x2D\x7B\x61\xA5\x1F\x52\x7A\x9A\x41\xF6\xC1\x68"
152 "\x7F\xE2\x53\x72\x98\xCA\x2A\x8F\x59\x46\xF8\xE5\xFD\x09\x1D\xBD"
153 "\xCB";
154
155 static unsigned char e[] = "\x11";
156
157 static unsigned char d[] =
158 "\x00\xA5\xDA\xFC\x53\x41\xFA\xF2\x89\xC4\xB9\x88\xDB\x30\xC1\xCD"
159 "\xF8\x3F\x31\x25\x1E\x06\x68\xB4\x27\x84\x81\x38\x01\x57\x96\x41"
160 "\xB2\x94\x10\xB3\xC7\x99\x8D\x6B\xC4\x65\x74\x5E\x5C\x39\x26\x69"
161 "\xD6\x87\x0D\xA2\xC0\x82\xA9\x39\xE3\x7F\xDC\xB8\x2E\xC9\x3E\xDA"
162 "\xC9\x7F\xF3\xAD\x59\x50\xAC\xCF\xBC\x11\x1C\x76\xF1\xA9\x52\x94"
163 "\x44\xE5\x6A\xAF\x68\xC5\x6C\x09\x2C\xD3\x8D\xC3\xBE\xF5\xD2\x0A"
164 "\x93\x99\x26\xED\x4F\x74\xA1\x3E\xDD\xFB\xE1\xA1\xCE\xCC\x48\x94"
165 "\xAF\x94\x28\xC2\xB7\xB8\x88\x3F\xE4\x46\x3A\x4B\xC8\x5B\x1C\xB3"
166 "\xC1";
167
168 static unsigned char p[] =
169 "\x00\xEE\xCF\xAE\x81\xB1\xB9\xB3\xC9\x08\x81\x0B\x10\xA1\xB5\x60"
170 "\x01\x99\xEB\x9F\x44\xAE\xF4\xFD\xA4\x93\xB8\x1A\x9E\x3D\x84\xF6"
171 "\x32\x12\x4E\xF0\x23\x6E\x5D\x1E\x3B\x7E\x28\xFA\xE7\xAA\x04\x0A"
172 "\x2D\x5B\x25\x21\x76\x45\x9D\x1F\x39\x75\x41\xBA\x2A\x58\xFB\x65"
173 "\x99";
174
175 static unsigned char q[] =
176 "\x00\xC9\x7F\xB1\xF0\x27\xF4\x53\xF6\x34\x12\x33\xEA\xAA\xD1\xD9"
177 "\x35\x3F\x6C\x42\xD0\x88\x66\xB1\xD0\x5A\x0F\x20\x35\x02\x8B\x9D"
178 "\x86\x98\x40\xB4\x16\x66\xB4\x2E\x92\xEA\x0D\xA3\xB4\x32\x04\xB5"
179 "\xCF\xCE\x33\x52\x52\x4D\x04\x16\xA5\xA4\x41\xE7\x00\xAF\x46\x15"
180 "\x03";
181
182 static unsigned char dmp1[] =
183 "\x54\x49\x4C\xA6\x3E\xBA\x03\x37\xE4\xE2\x40\x23\xFC\xD6\x9A\x5A"
184 "\xEB\x07\xDD\xDC\x01\x83\xA4\xD0\xAC\x9B\x54\xB0\x51\xF2\xB1\x3E"
185 "\xD9\x49\x09\x75\xEA\xB7\x74\x14\xFF\x59\xC1\xF7\x69\x2E\x9A\x2E"
186 "\x20\x2B\x38\xFC\x91\x0A\x47\x41\x74\xAD\xC9\x3C\x1F\x67\xC9\x81";
187
188 static unsigned char dmq1[] =
189 "\x47\x1E\x02\x90\xFF\x0A\xF0\x75\x03\x51\xB7\xF8\x78\x86\x4C\xA9"
190 "\x61\xAD\xBD\x3A\x8A\x7E\x99\x1C\x5C\x05\x56\xA9\x4C\x31\x46\xA7"
191 "\xF9\x80\x3F\x8F\x6F\x8A\xE3\x42\xE9\x31\xFD\x8A\xE4\x7A\x22\x0D"
192 "\x1B\x99\xA4\x95\x84\x98\x07\xFE\x39\xF9\x24\x5A\x98\x36\xDA\x3D";
193
194 static unsigned char iqmp[] =
195 "\x00\xB0\x6C\x4F\xDA\xBB\x63\x01\x19\x8D\x26\x5B\xDB\xAE\x94\x23"
196 "\xB3\x80\xF2\x71\xF7\x34\x53\x88\x50\x93\x07\x7F\xCD\x39\xE2\x11"
197 "\x9F\xC9\x86\x32\x15\x4F\x58\x83\xB1\x67\xA9\x67\xBF\x40\x2B\x4E"
198 "\x9E\x2E\x0F\x96\x56\xE6\x98\xEA\x36\x66\xED\xFB\x25\x79\x80\x39"
199 "\xF7";
200
201 static unsigned char ctext_ex[] =
202 "\xb8\x24\x6b\x56\xa6\xed\x58\x81\xae\xb5\x85\xd9\xa2\x5b\x2a\xd7"
203 "\x90\xc4\x17\xe0\x80\x68\x1b\xf1\xac\x2b\xc3\xde\xb6\x9d\x8b\xce"
204 "\xf0\xc4\x36\x6f\xec\x40\x0a\xf0\x52\xa7\x2e\x9b\x0e\xff\xb5\xb3"
205 "\xf2\xf1\x92\xdb\xea\xca\x03\xc1\x27\x40\x05\x71\x13\xbf\x1f\x06"
206 "\x69\xac\x22\xe9\xf3\xa7\x85\x2e\x3c\x15\xd9\x13\xca\xb0\xb8\x86"
207 "\x3a\x95\xc9\x92\x94\xce\x86\x74\x21\x49\x54\x61\x03\x46\xf4\xd4"
208 "\x74\xb2\x6f\x7c\x48\xb4\x2e\xe6\x8e\x1f\x57\x2a\x1f\xc4\x02\x6a"
209 "\xc4\x56\xb4\xf5\x9f\x7b\x62\x1e\xa1\xb9\xd8\x8f\x64\x20\x2f\xb1";
210
211 SetKey;
212 }
213
rsa_setkey(RSA ** key,unsigned char * ctext,int idx)214 static int rsa_setkey(RSA** key, unsigned char *ctext, int idx)
215 {
216 int clen = 0;
217
218 *key = RSA_new();
219 if (*key != NULL)
220 switch (idx) {
221 case 0:
222 clen = key1(*key, ctext);
223 break;
224 case 1:
225 clen = key2(*key, ctext);
226 break;
227 case 2:
228 clen = key3(*key, ctext);
229 break;
230 }
231 return clen;
232 }
233
test_rsa_simple(int idx,int en_pad_type,int de_pad_type,int success,unsigned char * ctext_ex,int * clen,RSA ** retkey)234 static int test_rsa_simple(int idx, int en_pad_type, int de_pad_type,
235 int success, unsigned char *ctext_ex, int *clen,
236 RSA **retkey)
237 {
238 int ret = 0;
239 RSA *key;
240 unsigned char ptext[256];
241 unsigned char ctext[256];
242 static unsigned char ptext_ex[] = "\x54\x85\x9b\x34\x2c\x49\xea\x2a";
243 int plen;
244 int clentmp = 0;
245 int num;
246
247 plen = sizeof(ptext_ex) - 1;
248 clentmp = rsa_setkey(&key, ctext_ex, idx);
249 if (clen != NULL)
250 *clen = clentmp;
251
252 num = RSA_public_encrypt(plen, ptext_ex, ctext, key, en_pad_type);
253 if (!TEST_int_eq(num, clentmp))
254 goto err;
255
256 num = RSA_private_decrypt(num, ctext, ptext, key, de_pad_type);
257 if (success) {
258 if (!TEST_int_gt(num, 0) || !TEST_mem_eq(ptext, num, ptext_ex, plen))
259 goto err;
260 } else {
261 if (!TEST_int_lt(num, 0))
262 goto err;
263 }
264
265 ret = 1;
266 if (retkey != NULL) {
267 *retkey = key;
268 key = NULL;
269 }
270 err:
271 RSA_free(key);
272 return ret;
273 }
274
test_rsa_pkcs1(int idx)275 static int test_rsa_pkcs1(int idx)
276 {
277 return test_rsa_simple(idx, RSA_PKCS1_PADDING, RSA_PKCS1_PADDING, 1, NULL,
278 NULL, NULL);
279 }
280
test_rsa_oaep(int idx)281 static int test_rsa_oaep(int idx)
282 {
283 int ret = 0;
284 RSA *key = NULL;
285 unsigned char ptext[256];
286 static unsigned char ptext_ex[] = "\x54\x85\x9b\x34\x2c\x49\xea\x2a";
287 unsigned char ctext_ex[256];
288 int plen;
289 int clen = 0;
290 int num;
291 int n;
292
293 if (!test_rsa_simple(idx, RSA_PKCS1_OAEP_PADDING, RSA_PKCS1_OAEP_PADDING, 1,
294 ctext_ex, &clen, &key))
295 goto err;
296
297 plen = sizeof(ptext_ex) - 1;
298
299 /* Different ciphertexts. Try decrypting ctext_ex */
300 num = RSA_private_decrypt(clen, ctext_ex, ptext, key,
301 RSA_PKCS1_OAEP_PADDING);
302 if (num <= 0 || !TEST_mem_eq(ptext, num, ptext_ex, plen))
303 goto err;
304
305 /* Try decrypting corrupted ciphertexts. */
306 for (n = 0; n < clen; ++n) {
307 ctext_ex[n] ^= 1;
308 num = RSA_private_decrypt(clen, ctext_ex, ptext, key,
309 RSA_PKCS1_OAEP_PADDING);
310 if (!TEST_int_le(num, 0))
311 goto err;
312 ctext_ex[n] ^= 1;
313 }
314
315 /* Test truncated ciphertexts, as well as negative length. */
316 for (n = -1; n < clen; ++n) {
317 num = RSA_private_decrypt(n, ctext_ex, ptext, key,
318 RSA_PKCS1_OAEP_PADDING);
319 if (!TEST_int_le(num, 0))
320 goto err;
321 }
322
323 ret = 1;
324 err:
325 RSA_free(key);
326 return ret;
327 }
328
329 static const struct {
330 int bits;
331 unsigned int r;
332 } rsa_security_bits_cases[] = {
333 /* NIST SP 800-56B rev 2 (draft) Appendix D Table 5 */
334 { 2048, 112 },
335 { 3072, 128 },
336 { 4096, 152 },
337 { 6144, 176 },
338 { 8192, 200 },
339 /* NIST FIPS 140-2 IG 7.5 */
340 { 7680, 192 },
341 { 15360, 256 },
342 /* Older values */
343 { 256, 40 },
344 { 512, 56 },
345 { 1024, 80 },
346 /* Some other values */
347 { 8888, 208 },
348 { 2468, 120 },
349 { 13456, 248 },
350 /* Edge points */
351 { 15359, 256 },
352 { 15361, 264 },
353 { 7679, 192 },
354 { 7681, 200 },
355 };
356
test_rsa_security_bit(int n)357 static int test_rsa_security_bit(int n)
358 {
359 static const unsigned char vals[8] = {
360 0x80, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40
361 };
362 RSA *key = RSA_new();
363 const int bits = rsa_security_bits_cases[n].bits;
364 const int result = rsa_security_bits_cases[n].r;
365 const int bytes = (bits + 7) / 8;
366 int r = 0;
367 unsigned char num[2000];
368
369 if (!TEST_ptr(key) || !TEST_int_le(bytes, (int)sizeof(num)))
370 goto err;
371
372 /*
373 * It is necessary to set the RSA key in order to ask for the strength.
374 * A BN of an appropriate size is created, in general it won't have the
375 * properties necessary for RSA to function. This is okay here since
376 * the RSA key is never used.
377 */
378 memset(num, vals[bits % 8], bytes);
379
380 /*
381 * The 'e' parameter is set to the same value as 'n'. This saves having
382 * an extra BN to hold a sensible value for 'e'. This is safe since the
383 * RSA key is not used. The 'd' parameter can be NULL safely.
384 */
385 if (TEST_true(RSA_set0_key(key, BN_bin2bn(num, bytes, NULL),
386 BN_bin2bn(num, bytes, NULL), NULL))
387 && TEST_uint_eq(RSA_security_bits(key), result))
388 r = 1;
389 err:
390 RSA_free(key);
391 return r;
392 }
393
setup_tests(void)394 int setup_tests(void)
395 {
396 ADD_ALL_TESTS(test_rsa_pkcs1, 3);
397 ADD_ALL_TESTS(test_rsa_oaep, 3);
398 ADD_ALL_TESTS(test_rsa_security_bit, OSSL_NELEM(rsa_security_bits_cases));
399 return 1;
400 }
401