- for (v = 0; v < 3; v++) {
- key = RSA_new();
- switch (v) {
- case 0:
- clen = key1(key, ctext_ex);
- break;
- case 1:
- clen = key2(key, ctext_ex);
- break;
- case 2:
- clen = key3(key, ctext_ex);
- break;
- }
-
- num = RSA_public_encrypt(plen, ptext_ex, ctext, key,
- RSA_PKCS1_PADDING);
- if (num != clen) {
- printf("PKCS#1 v1.5 encryption failed!\n");
- err = 1;
- goto oaep;
- }
-
- num = RSA_private_decrypt(num, ctext, ptext, key, RSA_PKCS1_PADDING);
- if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
- printf("PKCS#1 v1.5 decryption failed!\n");
- err = 1;
- } else
- printf("PKCS #1 v1.5 encryption/decryption ok\n");
-
- oaep:
- ERR_clear_error();
- num = RSA_public_encrypt(plen, ptext_ex, ctext, key,
- RSA_PKCS1_OAEP_PADDING);
- if (num == -1 && pad_unknown()) {
- printf("No OAEP support\n");
- goto next;
- }
- if (num != clen) {
- printf("OAEP encryption failed!\n");
- err = 1;
- goto next;
- }
-
- num = RSA_private_decrypt(num, ctext, ptext, key,
- RSA_PKCS1_OAEP_PADDING);
- if (num != plen || memcmp(ptext, ptext_ex, num) != 0) {
- printf("OAEP decryption (encrypted data) failed!\n");
- err = 1;
- } else if (memcmp(ctext, ctext_ex, num) == 0)
- printf("OAEP test vector %d passed!\n", v);
-
- /* Different ciphertexts. Try decrypting ctext_ex */
- num = RSA_private_decrypt(clen, ctext_ex, ptext, key,
- RSA_PKCS1_OAEP_PADDING);