Example usage for javax.crypto SecretKey getEncoded

Introduction

In this page you can find the example usage for javax.crypto SecretKey getEncoded.

Prototype

public byte[] getEncoded();

Source Link

Document

Returns the key in its primary encoding format, or null if this key does not support encoding.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    // Generate a key
    KeyGenerator keyGen = KeyGenerator.getInstance("DESede");
    SecretKey key = keyGen.generateKey();

    // Get the bytes of the key
    byte[] keyBytes = key.getEncoded();
    int numBytes = keyBytes.length;

    // The bytes can be converted back to a SecretKey
    SecretKey key2 = new SecretKeySpec(keyBytes, "DESede");
    boolean b = key.equals(key2); // true
}

From source file:backtype.storm.security.serialization.BlowfishTupleSerializer.java

/**
 * Produce a blowfish key to be used in "Storm jar" command
 *//*from   w w w  .  j  a  v a  2s .  c o  m*/
public static void main(String[] args) {
    try {
        KeyGenerator kgen = KeyGenerator.getInstance("Blowfish");
        SecretKey skey = kgen.generateKey();
        byte[] raw = skey.getEncoded();
        String keyString = new String(Hex.encodeHex(raw));
        System.out.println("storm -c " + SECRET_KEY + "=" + keyString + " -c "
                + Config.TOPOLOGY_TUPLE_SERIALIZER + "=" + BlowfishTupleSerializer.class.getName() + " ...");
    } catch (Exception ex) {
        LOG.error(ex.getMessage());
        ex.printStackTrace();
    }
}

From source file:org.apache.storm.security.serialization.BlowfishTupleSerializer.java

/**
 * Produce a blowfish key to be used in "Storm jar" command
 *///w ww . ja  v  a  2  s. c  o m
public static void main(String[] args) {
    try {
        KeyGenerator kgen = KeyGenerator.getInstance("Blowfish");
        kgen.init(256);
        SecretKey skey = kgen.generateKey();
        byte[] raw = skey.getEncoded();
        String keyString = new String(Hex.encodeHex(raw));
        System.out.println("storm -c " + SECRET_KEY + "=" + keyString + " -c "
                + Config.TOPOLOGY_TUPLE_SERIALIZER + "=" + BlowfishTupleSerializer.class.getName() + " ...");
    } catch (Exception ex) {
        LOG.error(ex.getMessage());
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    String s = "F488FD584E49DBCD20B49DE49107366B336C380D451D0F7C88"
            + "11111111111111111111111111111111111111111111111111"
            + "11111111111111111111111111111111111111111111111111"
            + "11111111111111111111111111111111111111111111111111"
            + "11111111111111111111111111111111111111111111111111" + "2F78C7";
    BigInteger base = BigInteger.valueOf(2);
    BigInteger modulous = new BigInteger(s, 16);
    DHParameterSpec skipParameterSpec = new DHParameterSpec(modulous, base);

    KeyPairGenerator kpg1 = KeyPairGenerator.getInstance("DH");
    kpg1.initialize(skipParameterSpec);/*  w  w w.j  a v a2 s.  c om*/
    KeyPair kp1 = kpg1.generateKeyPair();

    KeyAgreement ka1 = KeyAgreement.getInstance("DH");
    DHPrivateKey privateKey1 = (DHPrivateKey) kp1.getPrivate();
    DHPublicKey publicKey1 = (DHPublicKey) kp1.getPublic();
    ka1.init(privateKey1);
    System.out.println("1 is using " + publicKey1.getY() + " for its public key");

    KeyPairGenerator kpg2 = KeyPairGenerator.getInstance("DH");
    kpg2.initialize(skipParameterSpec);
    KeyPair kp2 = kpg2.generateKeyPair();

    KeyAgreement ka2 = KeyAgreement.getInstance("DH");
    DHPrivateKey privateKey2 = (DHPrivateKey) kp2.getPrivate();
    DHPublicKey publicKey2 = (DHPublicKey) kp2.getPublic();
    ka2.init(privateKey2);
    System.out.println("2 is using " + publicKey2.getY() + "for its public key");
    // Use the KeyAgreement object of 1 to generate its shared key
    ka1.doPhase(publicKey2, true);
    SecretKey sharedKey1 = ka1.generateSecret("DES");
    System.out.println("1 is using " + new String(sharedKey1.getEncoded()) + " as its DES session key");
    // Use the KeyAgreement object of 2 to generate its shared key
    ka2.doPhase(publicKey1, true);
    SecretKey sharedKey2 = ka2.generateSecret("DES");
    System.out.println("2 is using " + new String(sharedKey2.getEncoded()) + "as its DES session key");
}

From source file:org.apache.juddi.samples.DES.java

public static void main(String[] args) throws Exception {
    DES des = new DES();
    KeyGenerator kgen;/*from  w  w  w. ja  va  2  s.c o m*/
    try {
        kgen = KeyGenerator.getInstance(DESEDE_ENCRYPTION_SCHEME);
        kgen.init(168);
        SecretKey skey = kgen.generateKey();
        byte[] raw = skey.getEncoded();
        myEncryptionKey = new String(Base64.encodeBase64(raw));
        myEncryptionScheme = DESEDE_ENCRYPTION_SCHEME;
        arrayBytes = myEncryptionKey.getBytes(UNICODE_FORMAT);
        ks = new DESedeKeySpec(arrayBytes);
        skf = SecretKeyFactory.getInstance(myEncryptionScheme);
        cipher = Cipher.getInstance(myEncryptionScheme);
        key = skf.generateSecret(ks);

        System.out.println(new String(Base64.encodeBase64(raw)));
        System.out.println(des.encrypt("password"));
        System.out.println(des.decrypt(des.encrypt("password")));
    } catch (Exception ex) {
        ex.printStackTrace();
        ;
    }

}

From source file:Main.java

public static byte[] initKey(int size) throws NoSuchAlgorithmException {
    KeyGenerator kg = KeyGenerator.getInstance(KEY_ALGORITHM);
    kg.init(size);//from  ww w .  j ava2s. com
    SecretKey secretKey = kg.generateKey();
    return secretKey.getEncoded();
}

From source file:Main.java

public static byte[] initKey() throws NoSuchAlgorithmException {
    KeyGenerator keyGen = KeyGenerator.getInstance("AES");
    keyGen.init(256); //192 256
    SecretKey secretKey = keyGen.generateKey();
    return secretKey.getEncoded();
}

From source file:Main.java

public static byte[] generateKey(String password) throws Exception {
    byte[] keyStart = password.getBytes("UTF-8");

    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
    sr.setSeed(keyStart);/*from   w  ww  .  j a v  a2  s . c  om*/
    kgen.init(128, sr);
    SecretKey skey = kgen.generateKey();
    return skey.getEncoded();
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
    sr.setSeed(seed);/*from w  ww .j a va2s. c o m*/
    kgen.init(256, sr); // 192 and 256 bits may not be available
    SecretKey skey = kgen.generateKey();
    byte[] raw = skey.getEncoded();
    return raw;
}

From source file:Main.java

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG", "Crypto");
    sr.setSeed(seed);/*  w  w w.j ava  2  s .co m*/
    kgen.init(128, sr);
    SecretKey skey = kgen.generateKey();
    byte[] raw = skey.getEncoded();
    return raw;
}