libtomcrypt/testprof/rsa_test.c - platform/external/dropbear - Git at Google

 #include <tomcrypt_test.h>

 #ifdef MRSA

 #define RSA_MSGSIZE 78

 /* These are test keys [see file test.key] that I use to test my import/export against */
 static const unsigned char openssl_private_rsa[] = {
    0x30, 0x82, 0x02, 0x5e, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde, 0x64, 0x8a,
    0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7, 0xa1, 0xb7,
    0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96, 0x65, 0xe5,
    0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60, 0x12, 0x8a,
    0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b, 0xbf, 0x12,
    0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68, 0x7c, 0x61,
    0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4, 0xe2, 0x76,
    0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a, 0x60, 0x3f,
    0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01, 0x00, 0x01,
    0x02, 0x81, 0x81, 0x00, 0xc8, 0x62, 0xb9, 0xea, 0xde, 0x44, 0x53, 0x1d, 0x56, 0x97, 0xd9, 0x97,
    0x9e, 0x1a, 0xcf, 0x30, 0x1e, 0x0a, 0x88, 0x45, 0x86, 0x29, 0x30, 0xa3, 0x4d, 0x9f, 0x61, 0x65,
    0x73, 0xe0, 0xd6, 0x87, 0x8f, 0xb6, 0xf3, 0x06, 0xa3, 0x82, 0xdc, 0x7c, 0xac, 0xfe, 0x9b, 0x28,
    0x9a, 0xae, 0xfd, 0xfb, 0xfe, 0x2f, 0x0e, 0xd8, 0x97, 0x04, 0xe3, 0xbb, 0x1f, 0xd1, 0xec, 0x0d,
    0xba, 0xa3, 0x49, 0x7f, 0x47, 0xac, 0x8a, 0x44, 0x04, 0x7e, 0x86, 0xb7, 0x39, 0x42, 0x3f, 0xad,
    0x1e, 0xb7, 0x0e, 0xa5, 0x51, 0xf4, 0x40, 0x63, 0x1e, 0xfd, 0xbd, 0xea, 0x9f, 0x41, 0x9f, 0xa8,
    0x90, 0x1d, 0x6f, 0x0a, 0x5a, 0x95, 0x13, 0x11, 0x0d, 0x80, 0xaf, 0x5f, 0x64, 0x98, 0x8a, 0x2c,
    0x78, 0x68, 0x65, 0xb0, 0x2b, 0x8b, 0xa2, 0x53, 0x87, 0xca, 0xf1, 0x64, 0x04, 0xab, 0xf2, 0x7b,
    0xdb, 0x83, 0xc8, 0x81, 0x02, 0x41, 0x00, 0xf7, 0xbe, 0x5e, 0x23, 0xc3, 0x32, 0x3f, 0xbf, 0x8b,
    0x8e, 0x3a, 0xee, 0xfc, 0xfc, 0xcb, 0xe5, 0xf7, 0xf1, 0x0b, 0xbc, 0x42, 0x82, 0xae, 0xd5, 0x7a,
    0x3e, 0xca, 0xf7, 0xd5, 0x69, 0x3f, 0x64, 0x25, 0xa2, 0x1f, 0xb7, 0x75, 0x75, 0x05, 0x92, 0x42,
    0xeb, 0xb8, 0xf1, 0xf3, 0x0a, 0x05, 0xe3, 0x94, 0xd1, 0x55, 0x78, 0x35, 0xa0, 0x36, 0xa0, 0x9b,
    0x7c, 0x92, 0x84, 0x6c, 0xdd, 0xdc, 0x4d, 0x02, 0x41, 0x00, 0xd6, 0x86, 0x0e, 0x85, 0x42, 0x0b,
    0x04, 0x08, 0x84, 0x21, 0x60, 0xf0, 0x0e, 0x0d, 0x88, 0xfd, 0x1e, 0x36, 0x10, 0x65, 0x4f, 0x1e,
    0x53, 0xb4, 0x08, 0x72, 0x80, 0x5c, 0x3f, 0x59, 0x66, 0x17, 0xe6, 0x98, 0xf2, 0xe9, 0x6c, 0x7a,
    0x06, 0x4c, 0xac, 0x76, 0x3d, 0xed, 0x8c, 0xa1, 0xce, 0xad, 0x1b, 0xbd, 0xb4, 0x7d, 0x28, 0xbc,
    0xe3, 0x0e, 0x38, 0x8d, 0x99, 0xd8, 0x05, 0xb5, 0xa3, 0x71, 0x02, 0x40, 0x6d, 0xeb, 0xc3, 0x2d,
    0x2e, 0xf0, 0x5e, 0xa4, 0x88, 0x31, 0x05, 0x29, 0x00, 0x8a, 0xd1, 0x95, 0x29, 0x9b, 0x83, 0xcf,
    0x75, 0xdb, 0x31, 0xe3, 0x7a, 0x27, 0xde, 0x3a, 0x74, 0x30, 0x0c, 0x76, 0x4c, 0xd4, 0x50, 0x2a,
    0x40, 0x2d, 0x39, 0xd9, 0x99, 0x63, 0xa9, 0x5d, 0x80, 0xae, 0x53, 0xca, 0x94, 0x3f, 0x05, 0x23,
    0x1e, 0xf8, 0x05, 0x04, 0xe1, 0xb8, 0x35, 0xf2, 0x17, 0xb3, 0xa0, 0x89, 0x02, 0x41, 0x00, 0xab,
    0x90, 0x88, 0xfa, 0x60, 0x08, 0x29, 0x50, 0x9a, 0x43, 0x8b, 0xa0, 0x50, 0xcc, 0xd8, 0x5a, 0xfe,
    0x97, 0x64, 0x63, 0x71, 0x74, 0x22, 0xa3, 0x20, 0x02, 0x5a, 0xcf, 0xeb, 0xc6, 0x16, 0x95, 0x54,
    0xd1, 0xcb, 0xab, 0x8d, 0x1a, 0xc6, 0x00, 0xfa, 0x08, 0x92, 0x9c, 0x71, 0xd5, 0x52, 0x52, 0x35,
    0x96, 0x71, 0x4b, 0x8b, 0x92, 0x0c, 0xd0, 0xe9, 0xbf, 0xad, 0x63, 0x0b, 0xa5, 0xe9, 0xb1, 0x02,
    0x41, 0x00, 0xdc, 0xcc, 0x27, 0xc8, 0xe4, 0xdc, 0x62, 0x48, 0xd5, 0x9b, 0xaf, 0xf5, 0xab, 0x60,
    0xf6, 0x21, 0xfd, 0x53, 0xe2, 0xb7, 0x5d, 0x09, 0xc9, 0x1a, 0xa1, 0x04, 0xa9, 0xfc, 0x61, 0x2c,
    0x5d, 0x04, 0x58, 0x3a, 0x5a, 0x39, 0xf1, 0x4a, 0x21, 0x56, 0x67, 0xfd, 0xcc, 0x20, 0xa3, 0x8f,
    0x78, 0x18, 0x5a, 0x79, 0x3d, 0x2e, 0x8e, 0x7e, 0x86, 0x0a, 0xe6, 0xa8, 0x33, 0xc1, 0x04, 0x17,
    0x4a, 0x9f,  };


 /*** openssl public RSA key in DER format */
 static const unsigned char openssl_public_rsa[] = {
    0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
    0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde,
    0x64, 0x8a, 0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7,
    0xa1, 0xb7, 0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96,
    0x65, 0xe5, 0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60,
    0x12, 0x8a, 0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b,
    0xbf, 0x12, 0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68,
    0x7c, 0x61, 0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4,
    0xe2, 0x76, 0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a,
    0x60, 0x3f, 0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01,
    0x00, 0x01,  };

 /* same key but with extra headers stripped */
 static const unsigned char openssl_public_rsa_stripped[] = {
    0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde,
    0x64, 0x8a, 0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7,
    0xa1, 0xb7, 0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96,
    0x65, 0xe5, 0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60,
    0x12, 0x8a, 0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b,
    0xbf, 0x12, 0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68,
    0x7c, 0x61, 0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4,
    0xe2, 0x76, 0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a,
    0x60, 0x3f, 0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01,
    0x00, 0x01,  };

 static int rsa_compat_test(void)
 {
    rsa_key key;
    unsigned char buf[1024];
    unsigned long len;

    /* try reading the key */
    DO(rsa_import(openssl_private_rsa, sizeof(openssl_private_rsa), &key));

    /* now try to export private/public and compare */
    len = sizeof(buf);
    DO(rsa_export(buf, &len, PK_PRIVATE, &key));
    if (len != sizeof(openssl_private_rsa) || memcmp(buf, openssl_private_rsa, len)) {
       fprintf(stderr, "RSA private export failed to match OpenSSL output, %lu, %lu\n", len, (unsigned long)sizeof(openssl_private_rsa));
       return 1;
    }

    len = sizeof(buf);
    DO(rsa_export(buf, &len, PK_PUBLIC, &key));
    if (len != sizeof(openssl_public_rsa_stripped) || memcmp(buf, openssl_public_rsa_stripped, len)) {
       fprintf(stderr, "RSA(private) public export failed to match OpenSSL output\n");
       return 1;
    }
    rsa_free(&key);

    /* try reading the public key */
    DO(rsa_import(openssl_public_rsa_stripped, sizeof(openssl_public_rsa_stripped), &key));
    len = sizeof(buf);
    DO(rsa_export(buf, &len, PK_PUBLIC, &key));
    if (len != sizeof(openssl_public_rsa_stripped) || memcmp(buf, openssl_public_rsa_stripped, len)) {
       fprintf(stderr, "RSA(public) stripped public import failed to match OpenSSL output\n");
       return 1;
    }
    rsa_free(&key);

    /* try reading the public key */
    DO(rsa_import(openssl_public_rsa, sizeof(openssl_public_rsa), &key));
    len = sizeof(buf);
    DO(rsa_export(buf, &len, PK_PUBLIC, &key));
    if (len != sizeof(openssl_public_rsa_stripped) || memcmp(buf, openssl_public_rsa_stripped, len)) {
       fprintf(stderr, "RSA(public) SSL public import failed to match OpenSSL output\n");
       return 1;
    }
    rsa_free(&key);

    return 0;
 }

 int rsa_test(void)
 {
    unsigned char in[1024], out[1024], tmp[1024];
    rsa_key       key, privKey, pubKey;
    int           hash_idx, prng_idx, stat, stat2;
    unsigned long rsa_msgsize, len, len2, cnt;
    static unsigned char lparam[] = { 0x01, 0x02, 0x03, 0x04 };

    if (rsa_compat_test() != 0) {
       return 1;
    }

    hash_idx = find_hash("sha1");
    prng_idx = find_prng("yarrow");
    if (hash_idx == -1 || prng_idx == -1) {
       fprintf(stderr, "rsa_test requires SHA1 and yarrow");
       return 1;
    }

    /* make 10 random key */
    for (cnt = 0; cnt < 10; cnt++) {
       DO(rsa_make_key(&yarrow_prng, prng_idx, 1024/8, 65537, &key));
       if (mp_count_bits(key.N) != 1024) {
          fprintf(stderr, "rsa_1024 key modulus has %d bits\n", mp_count_bits(key.N));

 len = mp_unsigned_bin_size(key.N);
 mp_to_unsigned_bin(key.N, tmp);
  fprintf(stderr, "N == \n");
 for (cnt = 0; cnt < len; ) {
    fprintf(stderr, "%02x ", tmp[cnt]);
    if (!(++cnt & 15)) fprintf(stderr, "\n");
 }

 len = mp_unsigned_bin_size(key.p);
 mp_to_unsigned_bin(key.p, tmp);
  fprintf(stderr, "p == \n");
 for (cnt = 0; cnt < len; ) {
    fprintf(stderr, "%02x ", tmp[cnt]);
    if (!(++cnt & 15)) fprintf(stderr, "\n");
 }

 len = mp_unsigned_bin_size(key.q);
 mp_to_unsigned_bin(key.q, tmp);
  fprintf(stderr, "\nq == \n");
 for (cnt = 0; cnt < len; ) {
    fprintf(stderr, "%02x ", tmp[cnt]);
    if (!(++cnt & 15)) fprintf(stderr, "\n");
 }
  fprintf(stderr, "\n");


          return 1;
       }
       if (cnt != 9) {
          rsa_free(&key);
       }
    }

    /* encrypt the key (without lparam) */
    for (cnt = 0; cnt < 4; cnt++) {
    for (rsa_msgsize = 1; rsa_msgsize <= 86; rsa_msgsize++) {
       /* make a random key/msg */
       yarrow_read(in, rsa_msgsize, &yarrow_prng);

       len  = sizeof(out);
       len2 = rsa_msgsize;

       DO(rsa_encrypt_key(in, rsa_msgsize, out, &len, NULL, 0, &yarrow_prng, prng_idx, hash_idx, &key));
       /* change a byte */
       out[8] ^= 1;
       DO(rsa_decrypt_key(out, len, tmp, &len2, NULL, 0, hash_idx, &stat2, &key));
       /* change a byte back */
       out[8] ^= 1;
       if (len2 != rsa_msgsize) {
          fprintf(stderr, "\nrsa_decrypt_key mismatch len %lu (first decrypt)", len2);
          return 1;
       }

       len2 = rsa_msgsize;
       DO(rsa_decrypt_key(out, len, tmp, &len2, NULL, 0, hash_idx, &stat, &key));
       if (!(stat == 1 && stat2 == 0)) {
          fprintf(stderr, "rsa_decrypt_key failed");
          return 1;
       }
       if (len2 != rsa_msgsize || memcmp(tmp, in, rsa_msgsize)) {
          unsigned long x;
          fprintf(stderr, "\nrsa_decrypt_key mismatch, len %lu (second decrypt)\n", len2);
          fprintf(stderr, "Original contents: \n");
          for (x = 0; x < rsa_msgsize; ) {
              fprintf(stderr, "%02x ", in[x]);
              if (!(++x % 16)) {
                 fprintf(stderr, "\n");
              }
          }
          fprintf(stderr, "\n");
          fprintf(stderr, "Output contents: \n");
          for (x = 0; x < rsa_msgsize; ) {
              fprintf(stderr, "%02x ", out[x]);
              if (!(++x % 16)) {
                 fprintf(stderr, "\n");
              }
          }
          fprintf(stderr, "\n");
          return 1;
       }
    }
    }

    /* encrypt the key (with lparam) */
    for (rsa_msgsize = 1; rsa_msgsize <= 86; rsa_msgsize++) {
       len  = sizeof(out);
       len2 = rsa_msgsize;
       DO(rsa_encrypt_key(in, rsa_msgsize, out, &len, lparam, sizeof(lparam), &yarrow_prng, prng_idx, hash_idx, &key));
       /* change a byte */
       out[8] ^= 1;
       DO(rsa_decrypt_key(out, len, tmp, &len2, lparam, sizeof(lparam), hash_idx, &stat2, &key));
       if (len2 != rsa_msgsize) {
          fprintf(stderr, "\nrsa_decrypt_key mismatch len %lu (first decrypt)", len2);
          return 1;
       }
       /* change a byte back */
       out[8] ^= 1;

       len2 = rsa_msgsize;
       DO(rsa_decrypt_key(out, len, tmp, &len2, lparam, sizeof(lparam), hash_idx, &stat, &key));
       if (!(stat == 1 && stat2 == 0)) {
          fprintf(stderr, "rsa_decrypt_key failed");
          return 1;
       }
       if (len2 != rsa_msgsize || memcmp(tmp, in, rsa_msgsize)) {
          fprintf(stderr, "rsa_decrypt_key mismatch len %lu", len2);
          return 1;
       }
    }

    /* encrypt the key PKCS #1 v1.5 (payload from 1 to 117 bytes) */
    for (rsa_msgsize = 1; rsa_msgsize <= 117; rsa_msgsize++) {
       len  = sizeof(out);
       len2 = rsa_msgsize;
       DO(rsa_encrypt_key_ex(in, rsa_msgsize, out, &len, NULL, 0, &yarrow_prng, prng_idx, 0, LTC_PKCS_1_V1_5, &key));

       len2 = rsa_msgsize;
       DO(rsa_decrypt_key_ex(out, len, tmp, &len2, NULL, 0, 0, LTC_PKCS_1_V1_5, &stat, &key));
       if (!(stat == 1 && stat2 == 0)) {
          fprintf(stderr, "rsa_decrypt_key_ex failed, %d, %d", stat, stat2);
          return 1;
       }
       if (len2 != rsa_msgsize || memcmp(tmp, in, rsa_msgsize)) {
          fprintf(stderr, "rsa_decrypt_key_ex mismatch len %lu", len2);
          return 1;
       }
    }

    /* sign a message (unsalted, lower cholestorol and Atkins approved) now */
    len = sizeof(out);
    DO(rsa_sign_hash(in, 20, out, &len, &yarrow_prng, prng_idx, hash_idx, 0, &key));

 /* export key and import as both private and public */
    len2 = sizeof(tmp);
    DO(rsa_export(tmp, &len2, PK_PRIVATE, &key));
    DO(rsa_import(tmp, len2, &privKey));
    len2 = sizeof(tmp);
    DO(rsa_export(tmp, &len2, PK_PUBLIC, &key));
    DO(rsa_import(tmp, len2, &pubKey));

    /* verify with original */
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &key));
    /* change a byte */
    in[0] ^= 1;
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &key));

    if (!(stat == 1 && stat2 == 0)) {
       fprintf(stderr, "rsa_verify_hash (unsalted, origKey) failed, %d, %d", stat, stat2);
       rsa_free(&key);
       rsa_free(&pubKey);
       rsa_free(&privKey);
       return 1;
    }

    /* verify with privKey */
    /* change a byte */
    in[0] ^= 1;
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &privKey));
    /* change a byte */
    in[0] ^= 1;
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &privKey));

    if (!(stat == 1 && stat2 == 0)) {
       fprintf(stderr, "rsa_verify_hash (unsalted, privKey) failed, %d, %d", stat, stat2);
       rsa_free(&key);
       rsa_free(&pubKey);
       rsa_free(&privKey);
       return 1;
    }

    /* verify with pubKey */
    /* change a byte */
    in[0] ^= 1;
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &pubKey));
    /* change a byte */
    in[0] ^= 1;
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &pubKey));

    if (!(stat == 1 && stat2 == 0)) {
       fprintf(stderr, "rsa_verify_hash (unsalted, pubkey) failed, %d, %d", stat, stat2);
       rsa_free(&key);
       rsa_free(&pubKey);
       rsa_free(&privKey);
       return 1;
    }

    /* sign a message (salted) now (use privKey to make, pubKey to verify) */
    len = sizeof(out);
    DO(rsa_sign_hash(in, 20, out, &len, &yarrow_prng, prng_idx, hash_idx, 8, &privKey));
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 8, &stat, &pubKey));
    /* change a byte */
    in[0] ^= 1;
    DO(rsa_verify_hash(out, len, in, 20, hash_idx, 8, &stat2, &pubKey));

    if (!(stat == 1 && stat2 == 0)) {
       fprintf(stderr, "rsa_verify_hash (salted) failed, %d, %d", stat, stat2);
       rsa_free(&key);
       rsa_free(&pubKey);
       rsa_free(&privKey);
       return 1;
    }

    /* sign a message with PKCS #1 v1.5 */
    len = sizeof(out);
    DO(rsa_sign_hash_ex(in, 20, out, &len, LTC_PKCS_1_V1_5, &yarrow_prng, prng_idx, hash_idx, 8, &privKey));
    DO(rsa_verify_hash_ex(out, len, in, 20, LTC_PKCS_1_V1_5, hash_idx, 8, &stat, &pubKey));
    /* change a byte */
    in[0] ^= 1;
    DO(rsa_verify_hash_ex(out, len, in, 20, LTC_PKCS_1_V1_5, hash_idx, 8, &stat2, &pubKey));

    if (!(stat == 1 && stat2 == 0)) {
       fprintf(stderr, "rsa_verify_hash_ex failed, %d, %d", stat, stat2);
       rsa_free(&key);
       rsa_free(&pubKey);
       rsa_free(&privKey);
       return 1;
    }

    /* free the key and return */
    rsa_free(&key);
    rsa_free(&pubKey);
    rsa_free(&privKey);
    return 0;
 }

 #else

 int rsa_test(void)
 {
    fprintf(stderr, "NOP");
    return 0;
 }

 #endif

 /* $Source: /cvs/libtom/libtomcrypt/testprof/rsa_test.c,v $ */
 /* $Revision: 1.18 $ */
 /* $Date: 2006/11/21 00:10:18 $ */
	#include <tomcrypt_test.h>

	#ifdef MRSA

	#define RSA_MSGSIZE 78

	/* These are test keys [see file test.key] that I use to test my import/export against */
	static const unsigned char openssl_private_rsa[] = {
	0x30, 0x82, 0x02, 0x5e, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde, 0x64, 0x8a,
	0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7, 0xa1, 0xb7,
	0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96, 0x65, 0xe5,
	0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60, 0x12, 0x8a,
	0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b, 0xbf, 0x12,
	0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68, 0x7c, 0x61,
	0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4, 0xe2, 0x76,
	0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a, 0x60, 0x3f,
	0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01, 0x00, 0x01,
	0x02, 0x81, 0x81, 0x00, 0xc8, 0x62, 0xb9, 0xea, 0xde, 0x44, 0x53, 0x1d, 0x56, 0x97, 0xd9, 0x97,
	0x9e, 0x1a, 0xcf, 0x30, 0x1e, 0x0a, 0x88, 0x45, 0x86, 0x29, 0x30, 0xa3, 0x4d, 0x9f, 0x61, 0x65,
	0x73, 0xe0, 0xd6, 0x87, 0x8f, 0xb6, 0xf3, 0x06, 0xa3, 0x82, 0xdc, 0x7c, 0xac, 0xfe, 0x9b, 0x28,
	0x9a, 0xae, 0xfd, 0xfb, 0xfe, 0x2f, 0x0e, 0xd8, 0x97, 0x04, 0xe3, 0xbb, 0x1f, 0xd1, 0xec, 0x0d,
	0xba, 0xa3, 0x49, 0x7f, 0x47, 0xac, 0x8a, 0x44, 0x04, 0x7e, 0x86, 0xb7, 0x39, 0x42, 0x3f, 0xad,
	0x1e, 0xb7, 0x0e, 0xa5, 0x51, 0xf4, 0x40, 0x63, 0x1e, 0xfd, 0xbd, 0xea, 0x9f, 0x41, 0x9f, 0xa8,
	0x90, 0x1d, 0x6f, 0x0a, 0x5a, 0x95, 0x13, 0x11, 0x0d, 0x80, 0xaf, 0x5f, 0x64, 0x98, 0x8a, 0x2c,
	0x78, 0x68, 0x65, 0xb0, 0x2b, 0x8b, 0xa2, 0x53, 0x87, 0xca, 0xf1, 0x64, 0x04, 0xab, 0xf2, 0x7b,
	0xdb, 0x83, 0xc8, 0x81, 0x02, 0x41, 0x00, 0xf7, 0xbe, 0x5e, 0x23, 0xc3, 0x32, 0x3f, 0xbf, 0x8b,
	0x8e, 0x3a, 0xee, 0xfc, 0xfc, 0xcb, 0xe5, 0xf7, 0xf1, 0x0b, 0xbc, 0x42, 0x82, 0xae, 0xd5, 0x7a,
	0x3e, 0xca, 0xf7, 0xd5, 0x69, 0x3f, 0x64, 0x25, 0xa2, 0x1f, 0xb7, 0x75, 0x75, 0x05, 0x92, 0x42,
	0xeb, 0xb8, 0xf1, 0xf3, 0x0a, 0x05, 0xe3, 0x94, 0xd1, 0x55, 0x78, 0x35, 0xa0, 0x36, 0xa0, 0x9b,
	0x7c, 0x92, 0x84, 0x6c, 0xdd, 0xdc, 0x4d, 0x02, 0x41, 0x00, 0xd6, 0x86, 0x0e, 0x85, 0x42, 0x0b,
	0x04, 0x08, 0x84, 0x21, 0x60, 0xf0, 0x0e, 0x0d, 0x88, 0xfd, 0x1e, 0x36, 0x10, 0x65, 0x4f, 0x1e,
	0x53, 0xb4, 0x08, 0x72, 0x80, 0x5c, 0x3f, 0x59, 0x66, 0x17, 0xe6, 0x98, 0xf2, 0xe9, 0x6c, 0x7a,
	0x06, 0x4c, 0xac, 0x76, 0x3d, 0xed, 0x8c, 0xa1, 0xce, 0xad, 0x1b, 0xbd, 0xb4, 0x7d, 0x28, 0xbc,
	0xe3, 0x0e, 0x38, 0x8d, 0x99, 0xd8, 0x05, 0xb5, 0xa3, 0x71, 0x02, 0x40, 0x6d, 0xeb, 0xc3, 0x2d,
	0x2e, 0xf0, 0x5e, 0xa4, 0x88, 0x31, 0x05, 0x29, 0x00, 0x8a, 0xd1, 0x95, 0x29, 0x9b, 0x83, 0xcf,
	0x75, 0xdb, 0x31, 0xe3, 0x7a, 0x27, 0xde, 0x3a, 0x74, 0x30, 0x0c, 0x76, 0x4c, 0xd4, 0x50, 0x2a,
	0x40, 0x2d, 0x39, 0xd9, 0x99, 0x63, 0xa9, 0x5d, 0x80, 0xae, 0x53, 0xca, 0x94, 0x3f, 0x05, 0x23,
	0x1e, 0xf8, 0x05, 0x04, 0xe1, 0xb8, 0x35, 0xf2, 0x17, 0xb3, 0xa0, 0x89, 0x02, 0x41, 0x00, 0xab,
	0x90, 0x88, 0xfa, 0x60, 0x08, 0x29, 0x50, 0x9a, 0x43, 0x8b, 0xa0, 0x50, 0xcc, 0xd8, 0x5a, 0xfe,
	0x97, 0x64, 0x63, 0x71, 0x74, 0x22, 0xa3, 0x20, 0x02, 0x5a, 0xcf, 0xeb, 0xc6, 0x16, 0x95, 0x54,
	0xd1, 0xcb, 0xab, 0x8d, 0x1a, 0xc6, 0x00, 0xfa, 0x08, 0x92, 0x9c, 0x71, 0xd5, 0x52, 0x52, 0x35,
	0x96, 0x71, 0x4b, 0x8b, 0x92, 0x0c, 0xd0, 0xe9, 0xbf, 0xad, 0x63, 0x0b, 0xa5, 0xe9, 0xb1, 0x02,
	0x41, 0x00, 0xdc, 0xcc, 0x27, 0xc8, 0xe4, 0xdc, 0x62, 0x48, 0xd5, 0x9b, 0xaf, 0xf5, 0xab, 0x60,
	0xf6, 0x21, 0xfd, 0x53, 0xe2, 0xb7, 0x5d, 0x09, 0xc9, 0x1a, 0xa1, 0x04, 0xa9, 0xfc, 0x61, 0x2c,
	0x5d, 0x04, 0x58, 0x3a, 0x5a, 0x39, 0xf1, 0x4a, 0x21, 0x56, 0x67, 0xfd, 0xcc, 0x20, 0xa3, 0x8f,
	0x78, 0x18, 0x5a, 0x79, 0x3d, 0x2e, 0x8e, 0x7e, 0x86, 0x0a, 0xe6, 0xa8, 0x33, 0xc1, 0x04, 0x17,
	0x4a, 0x9f, };


	/*** openssl public RSA key in DER format */
	static const unsigned char openssl_public_rsa[] = {
	0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
	0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde,
	0x64, 0x8a, 0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7,
	0xa1, 0xb7, 0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96,
	0x65, 0xe5, 0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60,
	0x12, 0x8a, 0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b,
	0xbf, 0x12, 0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68,
	0x7c, 0x61, 0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4,
	0xe2, 0x76, 0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a,
	0x60, 0x3f, 0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01,
	0x00, 0x01, };

	/* same key but with extra headers stripped */
	static const unsigned char openssl_public_rsa_stripped[] = {
	0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x9a, 0xde,
	0x64, 0x8a, 0xda, 0xc8, 0x33, 0x20, 0xa9, 0xd7, 0x83, 0x31, 0x19, 0x54, 0xb2, 0x9a, 0x85, 0xa7,
	0xa1, 0xb7, 0x75, 0x33, 0xb6, 0xa9, 0xac, 0x84, 0x24, 0xb3, 0xde, 0xdb, 0x7d, 0x85, 0x2d, 0x96,
	0x65, 0xe5, 0x3f, 0x72, 0x95, 0x24, 0x9f, 0x28, 0x68, 0xca, 0x4f, 0xdb, 0x44, 0x1c, 0x3e, 0x60,
	0x12, 0x8a, 0xdd, 0x26, 0xa5, 0xeb, 0xff, 0x0b, 0x5e, 0xd4, 0x88, 0x38, 0x49, 0x2a, 0x6e, 0x5b,
	0xbf, 0x12, 0x37, 0x47, 0xbd, 0x05, 0x6b, 0xbc, 0xdb, 0xf3, 0xee, 0xe4, 0x11, 0x8e, 0x41, 0x68,
	0x7c, 0x61, 0x13, 0xd7, 0x42, 0xc8, 0x80, 0xbe, 0x36, 0x8f, 0xdc, 0x08, 0x8b, 0x4f, 0xac, 0xa4,
	0xe2, 0x76, 0x0c, 0xc9, 0x63, 0x6c, 0x49, 0x58, 0x93, 0xed, 0xcc, 0xaa, 0xdc, 0x25, 0x3b, 0x0a,
	0x60, 0x3f, 0x8b, 0x54, 0x3a, 0xc3, 0x4d, 0x31, 0xe7, 0x94, 0xa4, 0x44, 0xfd, 0x02, 0x03, 0x01,
	0x00, 0x01, };

	static int rsa_compat_test(void)
	{
	rsa_key key;
	unsigned char buf[1024];
	unsigned long len;

	/* try reading the key */
	DO(rsa_import(openssl_private_rsa, sizeof(openssl_private_rsa), &key));

	/* now try to export private/public and compare */
	len = sizeof(buf);
	DO(rsa_export(buf, &len, PK_PRIVATE, &key));
	if (len != sizeof(openssl_private_rsa) \|\| memcmp(buf, openssl_private_rsa, len)) {
	fprintf(stderr, "RSA private export failed to match OpenSSL output, %lu, %lu\n", len, (unsigned long)sizeof(openssl_private_rsa));
	return 1;
	}

	len = sizeof(buf);
	DO(rsa_export(buf, &len, PK_PUBLIC, &key));
	if (len != sizeof(openssl_public_rsa_stripped) \|\| memcmp(buf, openssl_public_rsa_stripped, len)) {
	fprintf(stderr, "RSA(private) public export failed to match OpenSSL output\n");
	return 1;
	}
	rsa_free(&key);

	/* try reading the public key */
	DO(rsa_import(openssl_public_rsa_stripped, sizeof(openssl_public_rsa_stripped), &key));
	len = sizeof(buf);
	DO(rsa_export(buf, &len, PK_PUBLIC, &key));
	if (len != sizeof(openssl_public_rsa_stripped) \|\| memcmp(buf, openssl_public_rsa_stripped, len)) {
	fprintf(stderr, "RSA(public) stripped public import failed to match OpenSSL output\n");
	return 1;
	}
	rsa_free(&key);

	/* try reading the public key */
	DO(rsa_import(openssl_public_rsa, sizeof(openssl_public_rsa), &key));
	len = sizeof(buf);
	DO(rsa_export(buf, &len, PK_PUBLIC, &key));
	if (len != sizeof(openssl_public_rsa_stripped) \|\| memcmp(buf, openssl_public_rsa_stripped, len)) {
	fprintf(stderr, "RSA(public) SSL public import failed to match OpenSSL output\n");
	return 1;
	}
	rsa_free(&key);

	return 0;
	}

	int rsa_test(void)
	{
	unsigned char in[1024], out[1024], tmp[1024];
	rsa_key key, privKey, pubKey;
	int hash_idx, prng_idx, stat, stat2;
	unsigned long rsa_msgsize, len, len2, cnt;
	static unsigned char lparam[] = { 0x01, 0x02, 0x03, 0x04 };

	if (rsa_compat_test() != 0) {
	return 1;
	}

	hash_idx = find_hash("sha1");
	prng_idx = find_prng("yarrow");
	if (hash_idx == -1 \|\| prng_idx == -1) {
	fprintf(stderr, "rsa_test requires SHA1 and yarrow");
	return 1;
	}

	/* make 10 random key */
	for (cnt = 0; cnt < 10; cnt++) {
	DO(rsa_make_key(&yarrow_prng, prng_idx, 1024/8, 65537, &key));
	if (mp_count_bits(key.N) != 1024) {
	fprintf(stderr, "rsa_1024 key modulus has %d bits\n", mp_count_bits(key.N));

	len = mp_unsigned_bin_size(key.N);
	mp_to_unsigned_bin(key.N, tmp);
	fprintf(stderr, "N == \n");
	for (cnt = 0; cnt < len; ) {
	fprintf(stderr, "%02x ", tmp[cnt]);
	if (!(++cnt & 15)) fprintf(stderr, "\n");
	}

	len = mp_unsigned_bin_size(key.p);
	mp_to_unsigned_bin(key.p, tmp);
	fprintf(stderr, "p == \n");
	for (cnt = 0; cnt < len; ) {
	fprintf(stderr, "%02x ", tmp[cnt]);
	if (!(++cnt & 15)) fprintf(stderr, "\n");
	}

	len = mp_unsigned_bin_size(key.q);
	mp_to_unsigned_bin(key.q, tmp);
	fprintf(stderr, "\nq == \n");
	for (cnt = 0; cnt < len; ) {
	fprintf(stderr, "%02x ", tmp[cnt]);
	if (!(++cnt & 15)) fprintf(stderr, "\n");
	}
	fprintf(stderr, "\n");


	return 1;
	}
	if (cnt != 9) {
	rsa_free(&key);
	}
	}

	/* encrypt the key (without lparam) */
	for (cnt = 0; cnt < 4; cnt++) {
	for (rsa_msgsize = 1; rsa_msgsize <= 86; rsa_msgsize++) {
	/* make a random key/msg */
	yarrow_read(in, rsa_msgsize, &yarrow_prng);

	len = sizeof(out);
	len2 = rsa_msgsize;

	DO(rsa_encrypt_key(in, rsa_msgsize, out, &len, NULL, 0, &yarrow_prng, prng_idx, hash_idx, &key));
	/* change a byte */
	out[8] ^= 1;
	DO(rsa_decrypt_key(out, len, tmp, &len2, NULL, 0, hash_idx, &stat2, &key));
	/* change a byte back */
	out[8] ^= 1;
	if (len2 != rsa_msgsize) {
	fprintf(stderr, "\nrsa_decrypt_key mismatch len %lu (first decrypt)", len2);
	return 1;
	}

	len2 = rsa_msgsize;
	DO(rsa_decrypt_key(out, len, tmp, &len2, NULL, 0, hash_idx, &stat, &key));
	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_decrypt_key failed");
	return 1;
	}
	if (len2 != rsa_msgsize \|\| memcmp(tmp, in, rsa_msgsize)) {
	unsigned long x;
	fprintf(stderr, "\nrsa_decrypt_key mismatch, len %lu (second decrypt)\n", len2);
	fprintf(stderr, "Original contents: \n");
	for (x = 0; x < rsa_msgsize; ) {
	fprintf(stderr, "%02x ", in[x]);
	if (!(++x % 16)) {
	fprintf(stderr, "\n");
	}
	}
	fprintf(stderr, "\n");
	fprintf(stderr, "Output contents: \n");
	for (x = 0; x < rsa_msgsize; ) {
	fprintf(stderr, "%02x ", out[x]);
	if (!(++x % 16)) {
	fprintf(stderr, "\n");
	}
	}
	fprintf(stderr, "\n");
	return 1;
	}
	}
	}

	/* encrypt the key (with lparam) */
	for (rsa_msgsize = 1; rsa_msgsize <= 86; rsa_msgsize++) {
	len = sizeof(out);
	len2 = rsa_msgsize;
	DO(rsa_encrypt_key(in, rsa_msgsize, out, &len, lparam, sizeof(lparam), &yarrow_prng, prng_idx, hash_idx, &key));
	/* change a byte */
	out[8] ^= 1;
	DO(rsa_decrypt_key(out, len, tmp, &len2, lparam, sizeof(lparam), hash_idx, &stat2, &key));
	if (len2 != rsa_msgsize) {
	fprintf(stderr, "\nrsa_decrypt_key mismatch len %lu (first decrypt)", len2);
	return 1;
	}
	/* change a byte back */
	out[8] ^= 1;

	len2 = rsa_msgsize;
	DO(rsa_decrypt_key(out, len, tmp, &len2, lparam, sizeof(lparam), hash_idx, &stat, &key));
	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_decrypt_key failed");
	return 1;
	}
	if (len2 != rsa_msgsize \|\| memcmp(tmp, in, rsa_msgsize)) {
	fprintf(stderr, "rsa_decrypt_key mismatch len %lu", len2);
	return 1;
	}
	}

	/* encrypt the key PKCS #1 v1.5 (payload from 1 to 117 bytes) */
	for (rsa_msgsize = 1; rsa_msgsize <= 117; rsa_msgsize++) {
	len = sizeof(out);
	len2 = rsa_msgsize;
	DO(rsa_encrypt_key_ex(in, rsa_msgsize, out, &len, NULL, 0, &yarrow_prng, prng_idx, 0, LTC_PKCS_1_V1_5, &key));

	len2 = rsa_msgsize;
	DO(rsa_decrypt_key_ex(out, len, tmp, &len2, NULL, 0, 0, LTC_PKCS_1_V1_5, &stat, &key));
	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_decrypt_key_ex failed, %d, %d", stat, stat2);
	return 1;
	}
	if (len2 != rsa_msgsize \|\| memcmp(tmp, in, rsa_msgsize)) {
	fprintf(stderr, "rsa_decrypt_key_ex mismatch len %lu", len2);
	return 1;
	}
	}

	/* sign a message (unsalted, lower cholestorol and Atkins approved) now */
	len = sizeof(out);
	DO(rsa_sign_hash(in, 20, out, &len, &yarrow_prng, prng_idx, hash_idx, 0, &key));

	/* export key and import as both private and public */
	len2 = sizeof(tmp);
	DO(rsa_export(tmp, &len2, PK_PRIVATE, &key));
	DO(rsa_import(tmp, len2, &privKey));
	len2 = sizeof(tmp);
	DO(rsa_export(tmp, &len2, PK_PUBLIC, &key));
	DO(rsa_import(tmp, len2, &pubKey));

	/* verify with original */
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &key));
	/* change a byte */
	in[0] ^= 1;
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &key));

	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_verify_hash (unsalted, origKey) failed, %d, %d", stat, stat2);
	rsa_free(&key);
	rsa_free(&pubKey);
	rsa_free(&privKey);
	return 1;
	}

	/* verify with privKey */
	/* change a byte */
	in[0] ^= 1;
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &privKey));
	/* change a byte */
	in[0] ^= 1;
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &privKey));

	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_verify_hash (unsalted, privKey) failed, %d, %d", stat, stat2);
	rsa_free(&key);
	rsa_free(&pubKey);
	rsa_free(&privKey);
	return 1;
	}

	/* verify with pubKey */
	/* change a byte */
	in[0] ^= 1;
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat, &pubKey));
	/* change a byte */
	in[0] ^= 1;
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 0, &stat2, &pubKey));

	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_verify_hash (unsalted, pubkey) failed, %d, %d", stat, stat2);
	rsa_free(&key);
	rsa_free(&pubKey);
	rsa_free(&privKey);
	return 1;
	}

	/* sign a message (salted) now (use privKey to make, pubKey to verify) */
	len = sizeof(out);
	DO(rsa_sign_hash(in, 20, out, &len, &yarrow_prng, prng_idx, hash_idx, 8, &privKey));
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 8, &stat, &pubKey));
	/* change a byte */
	in[0] ^= 1;
	DO(rsa_verify_hash(out, len, in, 20, hash_idx, 8, &stat2, &pubKey));

	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_verify_hash (salted) failed, %d, %d", stat, stat2);
	rsa_free(&key);
	rsa_free(&pubKey);
	rsa_free(&privKey);
	return 1;
	}

	/* sign a message with PKCS #1 v1.5 */
	len = sizeof(out);
	DO(rsa_sign_hash_ex(in, 20, out, &len, LTC_PKCS_1_V1_5, &yarrow_prng, prng_idx, hash_idx, 8, &privKey));
	DO(rsa_verify_hash_ex(out, len, in, 20, LTC_PKCS_1_V1_5, hash_idx, 8, &stat, &pubKey));
	/* change a byte */
	in[0] ^= 1;
	DO(rsa_verify_hash_ex(out, len, in, 20, LTC_PKCS_1_V1_5, hash_idx, 8, &stat2, &pubKey));

	if (!(stat == 1 && stat2 == 0)) {
	fprintf(stderr, "rsa_verify_hash_ex failed, %d, %d", stat, stat2);
	rsa_free(&key);
	rsa_free(&pubKey);
	rsa_free(&privKey);
	return 1;
	}

	/* free the key and return */
	rsa_free(&key);
	rsa_free(&pubKey);
	rsa_free(&privKey);
	return 0;
	}

	#else

	int rsa_test(void)
	{
	fprintf(stderr, "NOP");
	return 0;
	}

	#endif

	/* $Source: /cvs/libtom/libtomcrypt/testprof/rsa_test.c,v $ */
	/* $Revision: 1.18 $ */
	/* $Date: 2006/11/21 00:10:18 $ */