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      1 #include <tomcrypt_test.h>
      2 
      3 #ifdef 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 
     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 
    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 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 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_PKCS_1_V1_5, &key));
    265 
    266       len2 = rsa_msgsize;
    267       DO(rsa_decrypt_key_ex(out, len, tmp, &len2, NULL, 0, 0, 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 PKCS #1 v1.5 */
    353    len = sizeof(out);
    354    DO(rsa_sign_hash_ex(in, 20, out, &len, LTC_PKCS_1_V1_5, &yarrow_prng, prng_idx, hash_idx, 8, &privKey));
    355    DO(rsa_verify_hash_ex(out, len, in, 20, 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_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 
    377 int rsa_test(void)
    378 {
    379    fprintf(stderr, "NOP");
    380    return 0;
    381 }
    382 
    383 #endif
    384 
    385 /* $Source: /cvs/libtom/libtomcrypt/testprof/rsa_test.c,v $ */
    386 /* $Revision: 1.18 $ */
    387 /* $Date: 2006/11/21 00:10:18 $ */
    388