1 #include <tomcrypt_test.h>
2 
3 #ifdef LTC_MRSA
4 
5 #define RSA_MSGSIZE 78
6 
7 /* These are test keys [see file test.key] that I use to test my import/export against */
8 static const unsigned char openssl_private_rsa[] = {
9    0x30, 0x82, 0x02, 0x5e, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde, 0x64, 0x8a,
10    0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7, 0xa1, 0xb7,
11    0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96, 0x65, 0xe5,
12    0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60, 0x12, 0x8a,
13    0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b, 0xbf, 0x12,
14    0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68, 0x7c, 0x61,
15    0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4, 0xe2, 0x76,
16    0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a, 0x60, 0x3f,
17    0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01, 0x00, 0x01,
18    0x02, 0x81, 0x81, 0x00, 0xc8, 0x62, 0xb9, 0xea, 0xde, 0x44, 0x53, 0x1d, 0x56, 0x97, 0xd9, 0x97,
19    0x9e, 0x1a, 0xcf, 0x30, 0x1e, 0x0a, 0x88, 0x45, 0x86, 0x29, 0x30, 0xa3, 0x4d, 0x9f, 0x61, 0x65,
20    0x73, 0xe0, 0xd6, 0x87, 0x8f, 0xb6, 0xf3, 0x06, 0xa3, 0x82, 0xdc, 0x7c, 0xac, 0xfe, 0x9b, 0x28,
21    0x9a, 0xae, 0xfd, 0xfb, 0xfe, 0x2f, 0x0e, 0xd8, 0x97, 0x04, 0xe3, 0xbb, 0x1f, 0xd1, 0xec, 0x0d,
22    0xba, 0xa3, 0x49, 0x7f, 0x47, 0xac, 0x8a, 0x44, 0x04, 0x7e, 0x86, 0xb7, 0x39, 0x42, 0x3f, 0xad,
23    0x1e, 0xb7, 0x0e, 0xa5, 0x51, 0xf4, 0x40, 0x63, 0x1e, 0xfd, 0xbd, 0xea, 0x9f, 0x41, 0x9f, 0xa8,
24    0x90, 0x1d, 0x6f, 0x0a, 0x5a, 0x95, 0x13, 0x11, 0x0d, 0x80, 0xaf, 0x5f, 0x64, 0x98, 0x8a, 0x2c,
25    0x78, 0x68, 0x65, 0xb0, 0x2b, 0x8b, 0xa2, 0x53, 0x87, 0xca, 0xf1, 0x64, 0x04, 0xab, 0xf2, 0x7b,
26    0xdb, 0x83, 0xc8, 0x81, 0x02, 0x41, 0x00, 0xf7, 0xbe, 0x5e, 0x23, 0xc3, 0x32, 0x3f, 0xbf, 0x8b,
27    0x8e, 0x3a, 0xee, 0xfc, 0xfc, 0xcb, 0xe5, 0xf7, 0xf1, 0x0b, 0xbc, 0x42, 0x82, 0xae, 0xd5, 0x7a,
28    0x3e, 0xca, 0xf7, 0xd5, 0x69, 0x3f, 0x64, 0x25, 0xa2, 0x1f, 0xb7, 0x75, 0x75, 0x05, 0x92, 0x42,
29    0xeb, 0xb8, 0xf1, 0xf3, 0x0a, 0x05, 0xe3, 0x94, 0xd1, 0x55, 0x78, 0x35, 0xa0, 0x36, 0xa0, 0x9b,
30    0x7c, 0x92, 0x84, 0x6c, 0xdd, 0xdc, 0x4d, 0x02, 0x41, 0x00, 0xd6, 0x86, 0x0e, 0x85, 0x42, 0x0b,
31    0x04, 0x08, 0x84, 0x21, 0x60, 0xf0, 0x0e, 0x0d, 0x88, 0xfd, 0x1e, 0x36, 0x10, 0x65, 0x4f, 0x1e,
32    0x53, 0xb4, 0x08, 0x72, 0x80, 0x5c, 0x3f, 0x59, 0x66, 0x17, 0xe6, 0x98, 0xf2, 0xe9, 0x6c, 0x7a,
33    0x06, 0x4c, 0xac, 0x76, 0x3d, 0xed, 0x8c, 0xa1, 0xce, 0xad, 0x1b, 0xbd, 0xb4, 0x7d, 0x28, 0xbc,
34    0xe3, 0x0e, 0x38, 0x8d, 0x99, 0xd8, 0x05, 0xb5, 0xa3, 0x71, 0x02, 0x40, 0x6d, 0xeb, 0xc3, 0x2d,
35    0x2e, 0xf0, 0x5e, 0xa4, 0x88, 0x31, 0x05, 0x29, 0x00, 0x8a, 0xd1, 0x95, 0x29, 0x9b, 0x83, 0xcf,
36    0x75, 0xdb, 0x31, 0xe3, 0x7a, 0x27, 0xde, 0x3a, 0x74, 0x30, 0x0c, 0x76, 0x4c, 0xd4, 0x50, 0x2a,
37    0x40, 0x2d, 0x39, 0xd9, 0x99, 0x63, 0xa9, 0x5d, 0x80, 0xae, 0x53, 0xca, 0x94, 0x3f, 0x05, 0x23,
38    0x1e, 0xf8, 0x05, 0x04, 0xe1, 0xb8, 0x35, 0xf2, 0x17, 0xb3, 0xa0, 0x89, 0x02, 0x41, 0x00, 0xab,
39    0x90, 0x88, 0xfa, 0x60, 0x08, 0x29, 0x50, 0x9a, 0x43, 0x8b, 0xa0, 0x50, 0xcc, 0xd8, 0x5a, 0xfe,
40    0x97, 0x64, 0x63, 0x71, 0x74, 0x22, 0xa3, 0x20, 0x02, 0x5a, 0xcf, 0xeb, 0xc6, 0x16, 0x95, 0x54,
41    0xd1, 0xcb, 0xab, 0x8d, 0x1a, 0xc6, 0x00, 0xfa, 0x08, 0x92, 0x9c, 0x71, 0xd5, 0x52, 0x52, 0x35,
42    0x96, 0x71, 0x4b, 0x8b, 0x92, 0x0c, 0xd0, 0xe9, 0xbf, 0xad, 0x63, 0x0b, 0xa5, 0xe9, 0xb1, 0x02,
43    0x41, 0x00, 0xdc, 0xcc, 0x27, 0xc8, 0xe4, 0xdc, 0x62, 0x48, 0xd5, 0x9b, 0xaf, 0xf5, 0xab, 0x60,
44    0xf6, 0x21, 0xfd, 0x53, 0xe2, 0xb7, 0x5d, 0x09, 0xc9, 0x1a, 0xa1, 0x04, 0xa9, 0xfc, 0x61, 0x2c,
45    0x5d, 0x04, 0x58, 0x3a, 0x5a, 0x39, 0xf1, 0x4a, 0x21, 0x56, 0x67, 0xfd, 0xcc, 0x20, 0xa3, 0x8f,
46    0x78, 0x18, 0x5a, 0x79, 0x3d, 0x2e, 0x8e, 0x7e, 0x86, 0x0a, 0xe6, 0xa8, 0x33, 0xc1, 0x04, 0x17,
47    0x4a, 0x9f,  };
48 
49 
50 /*** openssl public RSA key in DER format */
51 static const unsigned char openssl_public_rsa[] = {
52    0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
53    0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde,
54    0x64, 0x8a, 0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7,
55    0xa1, 0xb7, 0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96,
56    0x65, 0xe5, 0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60,
57    0x12, 0x8a, 0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b,
58    0xbf, 0x12, 0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68,
59    0x7c, 0x61, 0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4,
60    0xe2, 0x76, 0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a,
61    0x60, 0x3f, 0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01,
62    0x00, 0x01,  };
63 
64 /* same key but with extra headers stripped */
65 static const unsigned char openssl_public_rsa_stripped[] = {
66    0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde,
67    0x64, 0x8a, 0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7,
68    0xa1, 0xb7, 0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96,
69    0x65, 0xe5, 0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60,
70    0x12, 0x8a, 0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b,
71    0xbf, 0x12, 0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68,
72    0x7c, 0x61, 0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4,
73    0xe2, 0x76, 0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a,
74    0x60, 0x3f, 0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01,
75    0x00, 0x01,  };
76 
rsa_compat_test(void)77 static int rsa_compat_test(void)
78 {
79    rsa_key key;
80    unsigned char buf[1024];
81    unsigned long len;
82 
83    /* try reading the key */
84    DO(rsa_import(openssl_private_rsa, sizeof(openssl_private_rsa), &key));
85 
86    /* now try to export private/public and compare */
87    len = sizeof(buf);
88    DO(rsa_export(buf, &len, PK_PRIVATE, &key));
89    if (len != sizeof(openssl_private_rsa) || memcmp(buf, openssl_private_rsa, len)) {
90       fprintf(stderr, "RSA private export failed to match OpenSSL output, %lu, %lu\n", len, (unsigned long)sizeof(openssl_private_rsa));
91       return 1;
92    }
93 
94    len = sizeof(buf);
95    DO(rsa_export(buf, &len, PK_PUBLIC, &key));
96    if (len != sizeof(openssl_public_rsa_stripped) || memcmp(buf, openssl_public_rsa_stripped, len)) {
97       fprintf(stderr, "RSA(private) public export failed to match OpenSSL output\n");
98       return 1;
99    }
100    rsa_free(&key);
101 
102    /* try reading the public key */
103    DO(rsa_import(openssl_public_rsa_stripped, sizeof(openssl_public_rsa_stripped), &key));
104    len = sizeof(buf);
105    DO(rsa_export(buf, &len, PK_PUBLIC, &key));
106    if (len != sizeof(openssl_public_rsa_stripped) || memcmp(buf, openssl_public_rsa_stripped, len)) {
107       fprintf(stderr, "RSA(public) stripped public import failed to match OpenSSL output\n");
108       return 1;
109    }
110    rsa_free(&key);
111 
112    /* try reading the public key */
113    DO(rsa_import(openssl_public_rsa, sizeof(openssl_public_rsa), &key));
114    len = sizeof(buf);
115    DO(rsa_export(buf, &len, PK_PUBLIC, &key));
116    if (len != sizeof(openssl_public_rsa_stripped) || memcmp(buf, openssl_public_rsa_stripped, len)) {
117       fprintf(stderr, "RSA(public) SSL public import failed to match OpenSSL output\n");
118       return 1;
119    }
120    rsa_free(&key);
121 
122    return 0;
123 }
124 
rsa_test(void)125 int rsa_test(void)
126 {
127    unsigned char in[1024], out[1024], tmp[1024];
128    rsa_key       key, privKey, pubKey;
129    int           hash_idx, prng_idx, stat, stat2;
130    unsigned long rsa_msgsize, len, len2, cnt;
131    static unsigned char lparam[] = { 0x01, 0x02, 0x03, 0x04 };
132 
133    if (rsa_compat_test() != 0) {
134       return 1;
135    }
136 
137    hash_idx = find_hash("sha1");
138    prng_idx = find_prng("yarrow");
139    if (hash_idx == -1 || prng_idx == -1) {
140       fprintf(stderr, "rsa_test requires LTC_SHA1 and yarrow");
141       return 1;
142    }
143 
144    /* make 10 random key */
145    for (cnt = 0; cnt < 10; cnt++) {
146       DO(rsa_make_key(&yarrow_prng, prng_idx, 1024/8, 65537, &key));
147       if (mp_count_bits(key.N) != 1024) {
148          fprintf(stderr, "rsa_1024 key modulus has %d bits\n", mp_count_bits(key.N));
149 
150 len = mp_unsigned_bin_size(key.N);
151 mp_to_unsigned_bin(key.N, tmp);
152  fprintf(stderr, "N == \n");
153 for (cnt = 0; cnt < len; ) {
154    fprintf(stderr, "%02x ", tmp[cnt]);
155    if (!(++cnt & 15)) fprintf(stderr, "\n");
156 }
157 
158 len = mp_unsigned_bin_size(key.p);
159 mp_to_unsigned_bin(key.p, tmp);
160  fprintf(stderr, "p == \n");
161 for (cnt = 0; cnt < len; ) {
162    fprintf(stderr, "%02x ", tmp[cnt]);
163    if (!(++cnt & 15)) fprintf(stderr, "\n");
164 }
165 
166 len = mp_unsigned_bin_size(key.q);
167 mp_to_unsigned_bin(key.q, tmp);
168  fprintf(stderr, "\nq == \n");
169 for (cnt = 0; cnt < len; ) {
170    fprintf(stderr, "%02x ", tmp[cnt]);
171    if (!(++cnt & 15)) fprintf(stderr, "\n");
172 }
173  fprintf(stderr, "\n");
174 
175 
176          return 1;
177       }
178       if (cnt != 9) {
179          rsa_free(&key);
180       }
181    }
182 
183    /* encrypt the key (without lparam) */
184    for (cnt = 0; cnt < 4; cnt++) {
185    for (rsa_msgsize = 1; rsa_msgsize <= 86; rsa_msgsize++) {
186       /* make a random key/msg */
187       yarrow_read(in, rsa_msgsize, &yarrow_prng);
188 
189       len  = sizeof(out);
190       len2 = rsa_msgsize;
191 
192       DO(rsa_encrypt_key(in, rsa_msgsize, out, &len, NULL, 0, &yarrow_prng, prng_idx, hash_idx, &key));
193       /* change a byte */
194       out[8] ^= 1;
195       DO(rsa_decrypt_key(out, len, tmp, &len2, NULL, 0, hash_idx, &stat2, &key));
196       /* change a byte back */
197       out[8] ^= 1;
198       if (len2 != rsa_msgsize) {
199          fprintf(stderr, "\nrsa_decrypt_key mismatch len %lu (first decrypt)", len2);
200          return 1;
201       }
202 
203       len2 = rsa_msgsize;
204       DO(rsa_decrypt_key(out, len, tmp, &len2, NULL, 0, hash_idx, &stat, &key));
205       if (!(stat == 1 && stat2 == 0)) {
206          fprintf(stderr, "rsa_decrypt_key failed");
207          return 1;
208       }
209       if (len2 != rsa_msgsize || memcmp(tmp, in, rsa_msgsize)) {
210          unsigned long x;
211          fprintf(stderr, "\nrsa_decrypt_key mismatch, len %lu (second decrypt)\n", len2);
212          fprintf(stderr, "Original contents: \n");
213          for (x = 0; x < rsa_msgsize; ) {
214              fprintf(stderr, "%02x ", in[x]);
215              if (!(++x % 16)) {
216                 fprintf(stderr, "\n");
217              }
218          }
219          fprintf(stderr, "\n");
220          fprintf(stderr, "Output contents: \n");
221          for (x = 0; x < rsa_msgsize; ) {
222              fprintf(stderr, "%02x ", out[x]);
223              if (!(++x % 16)) {
224                 fprintf(stderr, "\n");
225              }
226          }
227          fprintf(stderr, "\n");
228          return 1;
229       }
230    }
231    }
232 
233    /* encrypt the key (with lparam) */
234    for (rsa_msgsize = 1; rsa_msgsize <= 86; rsa_msgsize++) {
235       len  = sizeof(out);
236       len2 = rsa_msgsize;
237       DO(rsa_encrypt_key(in, rsa_msgsize, out, &len, lparam, sizeof(lparam), &yarrow_prng, prng_idx, hash_idx, &key));
238       /* change a byte */
239       out[8] ^= 1;
240       DO(rsa_decrypt_key(out, len, tmp, &len2, lparam, sizeof(lparam), hash_idx, &stat2, &key));
241       if (len2 != rsa_msgsize) {
242          fprintf(stderr, "\nrsa_decrypt_key mismatch len %lu (first decrypt)", len2);
243          return 1;
244       }
245       /* change a byte back */
246       out[8] ^= 1;
247 
248       len2 = rsa_msgsize;
249       DO(rsa_decrypt_key(out, len, tmp, &len2, lparam, sizeof(lparam), hash_idx, &stat, &key));
250       if (!(stat == 1 && stat2 == 0)) {
251          fprintf(stderr, "rsa_decrypt_key failed");
252          return 1;
253       }
254       if (len2 != rsa_msgsize || memcmp(tmp, in, rsa_msgsize)) {
255          fprintf(stderr, "rsa_decrypt_key mismatch len %lu", len2);
256          return 1;
257       }
258    }
259 
260    /* encrypt the key LTC_PKCS #1 v1.5 (payload from 1 to 117 bytes) */
261    for (rsa_msgsize = 1; rsa_msgsize <= 117; rsa_msgsize++) {
262       len  = sizeof(out);
263       len2 = rsa_msgsize;
264       DO(rsa_encrypt_key_ex(in, rsa_msgsize, out, &len, NULL, 0, &yarrow_prng, prng_idx, 0, LTC_LTC_PKCS_1_V1_5, &key));
265 
266       len2 = rsa_msgsize;
267       DO(rsa_decrypt_key_ex(out, len, tmp, &len2, NULL, 0, 0, LTC_LTC_PKCS_1_V1_5, &stat, &key));
268       if (!(stat == 1 && stat2 == 0)) {
269          fprintf(stderr, "rsa_decrypt_key_ex failed, %d, %d", stat, stat2);
270          return 1;
271       }
272       if (len2 != rsa_msgsize || memcmp(tmp, in, rsa_msgsize)) {
273          fprintf(stderr, "rsa_decrypt_key_ex mismatch len %lu", len2);
274          return 1;
275       }
276    }
277 
278    /* sign a message (unsalted, lower cholestorol and Atkins approved) now */
279    len = sizeof(out);
280    DO(rsa_sign_hash(in, 20, out, &len, &yarrow_prng, prng_idx, hash_idx, 0, &key));
281 
282 /* export key and import as both private and public */
283    len2 = sizeof(tmp);
284    DO(rsa_export(tmp, &len2, PK_PRIVATE, &key));
285    DO(rsa_import(tmp, len2, &privKey));
286    len2 = sizeof(tmp);
287    DO(rsa_export(tmp, &len2, PK_PUBLIC, &key));
288    DO(rsa_import(tmp, len2, &pubKey));
289 
290    /* verify with original */
291    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &key));
292    /* change a byte */
293    in[0] ^= 1;
294    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &key));
295 
296    if (!(stat == 1 && stat2 == 0)) {
297       fprintf(stderr, "rsa_verify_hash (unsalted, origKey) failed, %d, %d", stat, stat2);
298       rsa_free(&key);
299       rsa_free(&pubKey);
300       rsa_free(&privKey);
301       return 1;
302    }
303 
304    /* verify with privKey */
305    /* change a byte */
306    in[0] ^= 1;
307    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &privKey));
308    /* change a byte */
309    in[0] ^= 1;
310    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &privKey));
311 
312    if (!(stat == 1 && stat2 == 0)) {
313       fprintf(stderr, "rsa_verify_hash (unsalted, privKey) failed, %d, %d", stat, stat2);
314       rsa_free(&key);
315       rsa_free(&pubKey);
316       rsa_free(&privKey);
317       return 1;
318    }
319 
320    /* verify with pubKey */
321    /* change a byte */
322    in[0] ^= 1;
323    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &pubKey));
324    /* change a byte */
325    in[0] ^= 1;
326    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &pubKey));
327 
328    if (!(stat == 1 && stat2 == 0)) {
329       fprintf(stderr, "rsa_verify_hash (unsalted, pubkey) failed, %d, %d", stat, stat2);
330       rsa_free(&key);
331       rsa_free(&pubKey);
332       rsa_free(&privKey);
333       return 1;
334    }
335 
336    /* sign a message (salted) now (use privKey to make, pubKey to verify) */
337    len = sizeof(out);
338    DO(rsa_sign_hash(in, 20, out, &len, &yarrow_prng, prng_idx, hash_idx, 8, &privKey));
339    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 8, &stat, &pubKey));
340    /* change a byte */
341    in[0] ^= 1;
342    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 8, &stat2, &pubKey));
343 
344    if (!(stat == 1 && stat2 == 0)) {
345       fprintf(stderr, "rsa_verify_hash (salted) failed, %d, %d", stat, stat2);
346       rsa_free(&key);
347       rsa_free(&pubKey);
348       rsa_free(&privKey);
349       return 1;
350    }
351 
352    /* sign a message with LTC_PKCS #1 v1.5 */
353    len = sizeof(out);
354    DO(rsa_sign_hash_ex(in, 20, out, &len, LTC_LTC_PKCS_1_V1_5, &yarrow_prng, prng_idx, hash_idx, 8, &privKey));
355    DO(rsa_verify_hash_ex(out, len, in, 20, LTC_LTC_PKCS_1_V1_5, hash_idx, 8, &stat, &pubKey));
356    /* change a byte */
357    in[0] ^= 1;
358    DO(rsa_verify_hash_ex(out, len, in, 20, LTC_LTC_PKCS_1_V1_5, hash_idx, 8, &stat2, &pubKey));
359 
360    if (!(stat == 1 && stat2 == 0)) {
361       fprintf(stderr, "rsa_verify_hash_ex failed, %d, %d", stat, stat2);
362       rsa_free(&key);
363       rsa_free(&pubKey);
364       rsa_free(&privKey);
365       return 1;
366    }
367 
368    /* free the key and return */
369    rsa_free(&key);
370    rsa_free(&pubKey);
371    rsa_free(&privKey);
372    return 0;
373 }
374 
375 #else
376 
rsa_test(void)377 int rsa_test(void)
378 {
379    fprintf(stderr, "NOP");
380    return 0;
381 }
382 
383 #endif
384 
385 /* $Source$ */
386 /* $Revision$ */
387 /* $Date$ */
388