Example usage for java.security.spec RSAPrivateKeySpec RSAPrivateKeySpec

Introduction

In this page you can find the example usage for java.security.spec RSAPrivateKeySpec RSAPrivateKeySpec.

Prototype

public RSAPrivateKeySpec(BigInteger modulus, BigInteger privateExponent)

Source Link

Document

Creates a new RSAPrivateKeySpec.

Usage

From source file:org.mitre.jwt.JwtTest.java

/**
 * @throws Exception//from  ww w .j a v  a2s .  com
 */
@Test
public void testGenerateRsaSignature() throws Exception {

    // Hard code the private/public key so as not to depend on it being in
    // the keystore...

    RSAPrivateKeySpec privateSpec = new RSAPrivateKeySpec(new BigInteger(
            "AD6E684550542947AD95EF9BACDC0AC2C9168C6EB3212D378C23E5539266111DB2E5B4D42B1E47EB4F7A65DB63D9782C72BC365492FD1E5C7B4CD2174C611668C29013FEDE22619B3F58DA3531BB6C02B3266768B7895CBDAFB3F9AC7A7B2F3DB17EF4DCF03BD2575604BDE0A01BB1FB7B0E733AD63E464DB4D7D89626297A214D7CECCD0C50421A322A01E9DCEA23443F6A9339576B31DFA504A133076394562CB57F3FDEDB26F9A82BED2F6D52D6F6BF8286E2497EF0B5C8456F32B4668F5A9F5FCD3781345DDDB749792C37238A53D18FD976C0C9D1F1E211F1A4A9AAE679C45B92D1741EF0D3C3F373232CE7FB93E9BC461E1C508A20B74E7E3361B3C527",
            16),
            new BigInteger(
                    "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",
                    16));

    KeyFactory keyFactory = KeyFactory.getInstance("RSA");

    PrivateKey privateKey = keyFactory.generatePrivate(privateSpec);

    RSAPublicKeySpec publicSpec = new RSAPublicKeySpec(new BigInteger(
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
            16), new BigInteger("10001", 16));

    PublicKey publicKey = keyFactory.generatePublic(publicSpec);

    Jwt jwt = new Jwt();
    jwt.getHeader().setType("JWT");
    jwt.getHeader().setAlgorithm("RS256");
    jwt.getClaims().setExpiration(new Date(1300819380L * 1000L));
    jwt.getClaims().setIssuer("joe");
    jwt.getClaims().setClaim("http://example.com/is_root", Boolean.TRUE);

    JwtSigner signer = new RsaSigner(JwsAlgorithm.RS256.getJwaName(), publicKey, privateKey);
    ((RsaSigner) signer).afterPropertiesSet();

    /*
     * Expected string based on the following structures, serialized exactly
     * as follows and base64 encoded:
     * 
     * header: {"typ":"JWT","alg":"HS256"} claims:
     * {"exp":1300819380,"iss":"joe","http://example.com/is_root":true}
     * 
     * Expected signature: dSRvtD-ExzGN-
     * fRXd1wRZOPo1JFPuqgwvaIKp8jgcyMXJegy6IUjssfUfUcICN5yvh0ggOMWMeWkwQ7
     * -PlXMJWymdhXVI3BOpNt7ZOB2vMFYSOOHNBJUunQoe1lmNxuHQdhxqoHahn3u1cLDXz
     * -xx-
     * JELduuMmaDWqnTFPodVPl45WBKHaQhlOiFWj3ZClUV2k5p2yBT8TmxekL8gWwgVbQk5yPnYOs
     * -PcMjzODc9MZX4yI10ZSCSDciwf-
     * rgkQLT7wW4uZCoqTZ7187sCodHd6nw3nghqbtqN05fQ3Yq7ykwaR8pdQBFb2L9l7DhLLuXIREDKIFUHBSUs8OnvXFMg
     */

    String signature = "dSRvtD-ExzGN-fRXd1wRZOPo1JFPuqgwvaIKp8jgcyMXJegy6IUjssfUfUcICN5yvh0ggOMWMeWkwQ7-PlXMJWymdhXVI3BOpNt7ZOB2vMFYSOOHNBJUunQoe1lmNxuHQdhxqoHahn3u1cLDXz-xx-JELduuMmaDWqnTFPodVPl45WBKHaQhlOiFWj3ZClUV2k5p2yBT8TmxekL8gWwgVbQk5yPnYOs-PcMjzODc9MZX4yI10ZSCSDciwf-rgkQLT7wW4uZCoqTZ7187sCodHd6nw3nghqbtqN05fQ3Yq7ykwaR8pdQBFb2L9l7DhLLuXIREDKIFUHBSUs8OnvXFMg";
    String expected = "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiJ9.eyJleHAiOjEzMDA4MTkzODAsImlzcyI6ImpvZSIsImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ"
            + "." + signature;

    signer.sign(jwt);

    String actual = jwt.toString();

    assertThat(signer.verify(actual), equalTo(true));
    assertThat(actual, equalTo(expected));
    assertThat(jwt.getSignature(), equalTo(signature));
}

From source file:com.github.aynu.mosir.core.standard.util.SecurityHelper.java

/**
 * RSA???//from   w  w w  . java2  s.co  m
 * <dl>
 * <dt>?
 * <dd>RSA?????????????
 * </dl>
 * @param modulus 
 * @param exponent ??
 * @return RSA?
 */
public static RSAPrivateKey createPrivateKey(final BigInteger modulus, final BigInteger exponent) {
    try {
        final KeyFactory keyFactory = KeyFactory.getInstance(ALGO_KEY);
        return (RSAPrivateKey) keyFactory.generatePrivate(new RSAPrivateKeySpec(modulus, exponent));
    } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
        throw new StandardRuntimeException(e);
    }
}

From source file:compiler.downloader.MegaHandler.java

private int login_process(JSONObject json, long[] password_aes) throws IOException {

    String master_key_b64 = null;
    try {//from  w w  w  .  ja  va2 s . c  om
        master_key_b64 = json.getString("k");
    } catch (JSONException e) {
        e.printStackTrace();
    }
    if (master_key_b64 == null || master_key_b64.isEmpty()) {
        return -1;
    }

    long[] encrypted_master_key = MegaCrypt.base64_to_a32(master_key_b64);
    master_key = MegaCrypt.decrypt_key(encrypted_master_key, password_aes);

    if (json.has("csid")) {
        String encrypted_rsa_private_key_b64 = null;
        try {
            encrypted_rsa_private_key_b64 = json.getString("privk");
        } catch (JSONException e) {
            e.printStackTrace();
        }

        long[] encrypted_rsa_private_key = MegaCrypt.base64_to_a32(encrypted_rsa_private_key_b64);
        long[] rsa_private_key = MegaCrypt.decrypt_key(encrypted_rsa_private_key, master_key);
        String private_key = MegaCrypt.a32_to_str(rsa_private_key);

        BigInteger[] rsa_private_key1 = new BigInteger[4];
        for (int i = 0; i < 4; i++) {
            int l = ((((int) private_key.charAt(0)) * 256 + ((int) private_key.charAt(1)) + 7) / 8) + 2;
            rsa_private_key1[i] = MegaCrypt.mpi_to_int(private_key.substring(0, l));
            private_key = private_key.substring(l);
        }

        BigInteger encrypted_sid = null;
        try {
            encrypted_sid = MegaCrypt.mpi_to_int(MegaCrypt.base64_url_decode(json.getString("csid")));
        } catch (JSONException e) {
            e.printStackTrace();
        }

        BigInteger modulus = rsa_private_key1[0].multiply(rsa_private_key1[1]);
        BigInteger privateExponent = rsa_private_key1[2];

        BigInteger sid = null;
        try {
            PrivateKey privateKey = KeyFactory.getInstance("RSA")
                    .generatePrivate(new RSAPrivateKeySpec(modulus, privateExponent));
            Cipher cipher = Cipher.getInstance("RSA/ECB/NoPadding");
            cipher.init(Cipher.DECRYPT_MODE, privateKey);
            // PyCrypt can handle >256 bit length... what the fuck... sometimes i get 257
            if (encrypted_sid.toByteArray().length > 256) {
                Random rg = new Random();
                sequence_number = rg.nextInt(Integer.MAX_VALUE);
                return -2; // lets get a new seession
            }
            sid = new BigInteger(cipher.doFinal(encrypted_sid.toByteArray()));
        } catch (Exception e) {
            e.printStackTrace();
            return -1;
        }

        String sidS = sid.toString(16);
        if (sidS.length() % 2 != 0) {
            sidS = "0" + sidS;
        }
        try {
            byte[] sidsnohex = MegaCrypt.decodeHexString(sidS);
            this.sid = MegaCrypt.base64_url_encode(new String(sidsnohex, "ISO-8859-1").substring(0, 43));
        } catch (Exception e) {
            e.printStackTrace();
            return -1;
        }
    }
    return 0;
}

From source file:MegaHandler.java

private int login_process(JSONObject json, long[] password_aes) throws IOException {

    String master_key_b64 = null;
    try {// ww  w. ja  va 2 s.co  m
        master_key_b64 = json.getString("k");
    } catch (JSONException e) {
        e.printStackTrace();
    }
    if (master_key_b64 == null || master_key_b64.isEmpty())
        return -1;

    long[] encrypted_master_key = MegaCrypt.base64_to_a32(master_key_b64);
    master_key = MegaCrypt.decrypt_key(encrypted_master_key, password_aes);

    if (json.has("csid")) {
        String encrypted_rsa_private_key_b64 = null;
        try {
            encrypted_rsa_private_key_b64 = json.getString("privk");
        } catch (JSONException e) {
            e.printStackTrace();
        }

        long[] encrypted_rsa_private_key = MegaCrypt.base64_to_a32(encrypted_rsa_private_key_b64);
        long[] rsa_private_key = MegaCrypt.decrypt_key(encrypted_rsa_private_key, master_key);
        String private_key = MegaCrypt.a32_to_str(rsa_private_key);

        this.rsa_private_key = new BigInteger[4];
        for (int i = 0; i < 4; i++) {
            int l = ((((int) private_key.charAt(0)) * 256 + ((int) private_key.charAt(1)) + 7) / 8) + 2;
            this.rsa_private_key[i] = MegaCrypt.mpi_to_int(private_key.substring(0, l));
            private_key = private_key.substring(l);
        }

        BigInteger encrypted_sid = null;
        try {
            encrypted_sid = MegaCrypt.mpi_to_int(MegaCrypt.base64_url_decode(json.getString("csid")));
        } catch (JSONException e) {
            e.printStackTrace();
        }

        BigInteger modulus = this.rsa_private_key[0].multiply(this.rsa_private_key[1]);
        BigInteger privateExponent = this.rsa_private_key[2];

        BigInteger sid = null;
        try {
            PrivateKey privateKey = KeyFactory.getInstance("RSA")
                    .generatePrivate(new RSAPrivateKeySpec(modulus, privateExponent));
            Cipher cipher = Cipher.getInstance("RSA/ECB/NoPadding");
            cipher.init(Cipher.DECRYPT_MODE, privateKey);
            // PyCrypt can handle >256 bit length... what the fuck... sometimes i get 257
            if (encrypted_sid.toByteArray().length > 256) {
                Random rg = new Random();
                sequence_number = rg.nextInt(Integer.MAX_VALUE);
                return -2; // lets get a new seession
            }
            sid = new BigInteger(cipher.doFinal(encrypted_sid.toByteArray()));
        } catch (Exception e) {
            e.printStackTrace();
            return -1;
        }

        String sidS = sid.toString(16);
        if (sidS.length() % 2 != 0)
            sidS = "0" + sidS;
        try {
            byte[] sidsnohex = MegaCrypt.decodeHexString(sidS);
            this.sid = MegaCrypt.base64_url_encode(new String(sidsnohex, "ISO-8859-1").substring(0, 43));
        } catch (Exception e) {
            e.printStackTrace();
            return -1;
        }
    }
    return 0;
}

From source file:XmldapCertsAndKeys.java

public static RSAPrivateKey getXmldapPrivateKey() throws InvalidKeySpecException, NoSuchAlgorithmException {
    String exponentB64 = "AKh/FZVHiKxcIPA8g2mN8TUdMXuX58I7z4jS+57vYta387MG3DGZtQ/XXfHdPx9WjdoW0KWE2Pl5"
            + "SbOZW7tVcwigF88FrSJ5i6XDwUktmXjFwJM/TvUZlxWAKUdoOX8MC3DrAYZxeT3kC1mzAiBMPdC4"
            + "W4zNe7Zo0YgbsMzQZowVxZTP4GWa/L8o3adXTvdobP1nKW5buPj9vkgaGCTxE0vQzbuiGj1HRJe9"
            + "MRtvcU/I2shiIVE0F35wk8gw0FATtkvMpTpR12YVeo1JGZsHFQoD7gTD/n/NmC9Rjk2baYGj97hV"
            + "9EpDRcPNsMll2pVRy4Z45j2+t/yl8WjaqK5lhkE=";
    String modulusB64 = "ANMnkVA4xfpG0bLos9FOpNBjHAdFahy2cJ7FUwuXd/IShnG+5qF/z1SdPWzRxTtpFFyodtXlBUEI"
            + "biT+IbYPZF1vCcBrcFa8Kz/4rBjrpPZgllgA/WSVKjnJvw8q4/tO6CQZSlRlj/ebNK9VyT1kN+Mr"
            + "KV1SGTqaIJ2l+7Rd05WHscwZMPdVWBbRrg76YTfy6H/NlQIArNLZanPvE0Vd5QfD4ZyG2hTh3y7Z"
            + "lJAUndGJ/kfZw8sKuL9QSrh4eOTc280NQUmPGz6LP5MXNmu0RxEcomod1+ToKll90yEKFAUKuPYF"
            + "gm9J+vYm4tzRequLy/njteRIkcfAdcAtt6PCYjU=";
    byte[] exponentBytes = Base64.decode(exponentB64);
    byte[] modulusBytes = Base64.decode(modulusB64);
    BigInteger exponent = new BigInteger(1, exponentBytes);
    BigInteger modulus = new BigInteger(1, modulusBytes);
    RSAPrivateKeySpec ks = new RSAPrivateKeySpec(modulus, exponent);
    KeyFactory kf = KeyFactory.getInstance("RSA");
    return (RSAPrivateKey) kf.generatePrivate(ks);
}

From source file:com.cellngine.crypto.RSACipher.java

@Override
public void loadPrivateKey(final byte[] fromBytes) {
    final BigInteger[] keyData = this.getKeyData(fromBytes);
    final RSAPrivateKeySpec spec = new RSAPrivateKeySpec(keyData[0], keyData[1]);
    this.privateKey = this.getPrivateKey(spec);
}

From source file:license.TestWakeLicense.java

/**
 * ??//from w ww .  j  av a  2  s  .c o m
 * @return
 * @throws Exception
 */
private static PrivateKey readPrivateKeyFromFile() throws Exception {
    //??
    ObjectInputStream oin = new ObjectInputStream(new BufferedInputStream(
            new FileInputStream(new File("E:\\workspace\\TestProject\\src\\license\\private.key"))));
    try {
        BigInteger m = (BigInteger) oin.readObject();
        BigInteger e = (BigInteger) oin.readObject();
        RSAPrivateKeySpec keySpec = new RSAPrivateKeySpec(m, e);
        KeyFactory fact = KeyFactory.getInstance("RSA");
        return fact.generatePrivate(keySpec);
    } finally {
        //         oin.close();
    }
}

From source file:net.adamcin.httpsig.testutil.KeyTestUtil.java

public static KeyPair getKeyPairFromProperties(String parentName, String keyName) {
    InputStream is = null;// w w  w. j a  v  a 2s .  c o  m
    try {
        is = KeyTestUtil.class.getResourceAsStream("/" + parentName + "/" + keyName + ".properties");
        Properties props = new Properties();
        props.load(is);
        if (TYPE_RSA.equals(props.getProperty(P_TYPE))) {
            RSAPrivateKeySpec privSpec = null;
            if (props.getProperty(RSA_P) != null && props.getProperty(RSA_Q) != null
                    && props.getProperty(RSA_U) != null) {
                privSpec = new RSAPrivateCrtKeySpec(new BigInteger(props.getProperty(RSA_N)),
                        new BigInteger(props.getProperty(RSA_E)), new BigInteger(props.getProperty(RSA_D)),
                        new BigInteger(props.getProperty(RSA_P)), new BigInteger(props.getProperty(RSA_Q)),
                        new BigInteger(props.getProperty(RSA_PE)), new BigInteger(props.getProperty(RSA_QE)),
                        new BigInteger(props.getProperty(RSA_U)));
            } else {
                privSpec = new RSAPrivateKeySpec(new BigInteger(props.getProperty(RSA_N)),
                        new BigInteger(props.getProperty(RSA_D)));
            }
            RSAPublicKeySpec pubSpec = new RSAPublicKeySpec(new BigInteger(props.getProperty(RSA_N)),
                    new BigInteger(props.getProperty(RSA_E)));

            KeyFactory keyFactory = KeyFactory.getInstance("RSA");
            return new KeyPair(keyFactory.generatePublic(pubSpec), keyFactory.generatePrivate(privSpec));
        } else if (TYPE_DSA.equals(props.getProperty(P_TYPE))) {
            DSAPrivateKeySpec privSpec = new DSAPrivateKeySpec(new BigInteger(props.getProperty(DSA_X)),
                    new BigInteger(props.getProperty(DSA_P)), new BigInteger(props.getProperty(DSA_Q)),
                    new BigInteger(props.getProperty(DSA_G)));
            DSAPublicKeySpec pubSpec = new DSAPublicKeySpec(new BigInteger(props.getProperty(DSA_Y)),
                    new BigInteger(props.getProperty(DSA_P)), new BigInteger(props.getProperty(DSA_Q)),
                    new BigInteger(props.getProperty(DSA_G)));
            KeyFactory keyFactory = KeyFactory.getInstance("DSA");
            return new KeyPair(keyFactory.generatePublic(pubSpec), keyFactory.generatePrivate(privSpec));
        }
    } catch (Exception e) {
        LOGGER.error("Failed to read properties", e);
    } finally {
        IOUtils.closeQuietly(is);
    }

    return null;
}

From source file:de.pawlidi.openaletheia.generator.KeyGenerator.java

public static RSAPrivateKeySpec readPrivateKeySpec(final String directory) {
    if (StringUtils.isBlank(directory) || !new File(directory).isDirectory()) {
        return null;
    }/*www . ja  v  a 2 s  .  c  o  m*/
    RSAPrivateKeySpec privateKeySpec = null;
    ObjectInputStream inputStream = null;
    try {
        inputStream = new ObjectInputStream(
                new BufferedInputStream(new FileInputStream(new File(directory, PRIVATE_KEYSPEC_FILE))));
        try {
            BigInteger m = (BigInteger) inputStream.readObject();
            BigInteger e = (BigInteger) inputStream.readObject();
            privateKeySpec = new RSAPrivateKeySpec(m, e);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } finally {
            if (inputStream != null) {
                inputStream.close();
                inputStream = null;
            }
        }
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return privateKeySpec;
}

From source file:sernet.verinice.encryption.test.CryptoTest.java

X509Certificate generateCertificate(String dn, KeyPair pair, int days)
        throws GeneralSecurityException, IOException {
    PublicKey publicKey = pair.getPublic();
    PrivateKey privateKey = pair.getPrivate();
    if (publicKey instanceof RSAPublicKey) {
        RSAPublicKey rsaPk = (RSAPublicKey) publicKey;
        RSAPublicKeySpec rsaPkSpec = new RSAPublicKeySpec(rsaPk.getModulus(), rsaPk.getPublicExponent());
        try {/*from  w  w w . j ava  2  s.  c om*/
            publicKey = KeyFactory.getInstance("RSA").generatePublic(rsaPkSpec);
        } catch (InvalidKeySpecException e) {
            publicKey = pair.getPublic();
        }
    }
    if (privateKey instanceof RSAPrivateKey) {
        RSAPrivateKey rsaPk = (RSAPrivateKey) privateKey;
        RSAPrivateKeySpec rsaPkSpec = new RSAPrivateKeySpec(rsaPk.getModulus(), rsaPk.getPrivateExponent());
        try {
            privateKey = KeyFactory.getInstance("RSA").generatePrivate(rsaPkSpec);
        } catch (InvalidKeySpecException e) {
            privateKey = pair.getPrivate();
        }
    }

    X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
    String commonName = "CN=" + dn + ", OU=None, O=None L=None, C=None";
    X500Principal dnName = new X500Principal(commonName);
    certGen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));
    certGen.setIssuerDN(dnName);
    certGen.addExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(true));
    Calendar cal = Calendar.getInstance();
    certGen.setNotBefore(cal.getTime());
    cal.add(Calendar.YEAR, 5);
    certGen.setNotAfter(cal.getTime());
    certGen.setSubjectDN(dnName);
    certGen.setPublicKey(publicKey);
    certGen.setSignatureAlgorithm("MD5WithRSA");
    return certGen.generate(privateKey, BouncyCastleProvider.PROVIDER_NAME);
}