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:org.openmrs.module.reportingsummary.api.io.download.DownloadProcessor.java

/**
 * Method to initialize the cipher object with the correct encryption algorithm.
 *
 * @throws Exception// w w w  . j a v  a  2 s .  com
 */
private Cipher initializeCipher() throws Exception {
    SecretKeyFactory factory = SecretKeyFactory.getInstance(InputOutputConstants.SECRET_KEY_FACTORY);
    KeySpec spec = new PBEKeySpec(password.toCharArray(), password.getBytes(), 1024, 128);
    SecretKey secretKey = factory.generateSecret(spec);

    SecretKey secret = new SecretKeySpec(secretKey.getEncoded(), InputOutputConstants.KEY_SPEC);

    if (log.isDebugEnabled())
        log.debug("Encrypting with: " + secret.getAlgorithm());

    Cipher cipher = Cipher.getInstance(InputOutputConstants.CIPHER_CONFIGURATION);
    cipher.init(Cipher.ENCRYPT_MODE, secret);
    return cipher;
}

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From source file:adminpassword.AESDemo.java

public String encrypt(String plainText) throws Exception {

    //get salt//from  w  w w . j  av  a 2 s  . co  m
    salt = generateSalt();
    byte[] saltBytes = salt.getBytes("UTF-8");

    // Derive the key
    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
    PBEKeySpec spec = new PBEKeySpec(password.toCharArray(), saltBytes, pswdIterations, keySize);

    SecretKey secretKey = factory.generateSecret(spec);
    SecretKeySpec secret = new SecretKeySpec(secretKey.getEncoded(), "AES");

    //encrypt the message
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, secret);
    AlgorithmParameters params = cipher.getParameters();
    ivBytes = params.getParameterSpec(IvParameterSpec.class).getIV();
    byte[] encryptedTextBytes = cipher.doFinal(plainText.getBytes("UTF-8"));
    return new Base64().encodeAsString(encryptedTextBytes);
}

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From source file:enc_mods.aes.java

public void setKey() {
    try {//from   w  w  w.j ava 2s  .  c om
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(AES_Key_Size);
        SecretKey aeskey = kgen.generateKey();
        key = aeskey.getEncoded();
        secretkey = new SecretKeySpec(key, "AES");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:net.thewaffleshop.nimbus.api.EncryptionAPI.java

/**
 * Serialize a secret key//from   w  ww  .  j  av  a  2s  .  co  m
 *
 * @param sk
 * @return
 */
public byte[] serializeSecretKey(SecretKey sk) {
    return sk.getEncoded();
}

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From source file:adminpassword.AESDemo.java

@SuppressWarnings("static-access")
public String decrypt(String encryptedText) throws Exception {

    byte[] saltBytes = salt.getBytes("UTF-8");
    byte[] encryptedTextBytes = new Base64().decodeBase64(encryptedText);

    // Derive the key
    SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
    PBEKeySpec spec = new PBEKeySpec(password.toCharArray(), saltBytes, pswdIterations, keySize);

    SecretKey secretKey = factory.generateSecret(spec);
    SecretKeySpec secret = new SecretKeySpec(secretKey.getEncoded(), "AES");

    // Decrypt the message
    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    cipher.init(Cipher.DECRYPT_MODE, secret, new IvParameterSpec(ivBytes));

    byte[] decryptedTextBytes = null;
    try {/*from   w ww . j  a v  a  2 s.c o m*/
        decryptedTextBytes = cipher.doFinal(encryptedTextBytes);
    } catch (IllegalBlockSizeException e) {
        e.printStackTrace();
    } catch (BadPaddingException e) {
        e.printStackTrace();
    }

    return new String(decryptedTextBytes);
}

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From source file:com.eucalyptus.auth.euare.EuareServerCertificateUtil.java

public static String getEncryptedKey(final String certArn, final String certPem) throws AuthException {
    final ServerCertificate targetCert = lookupServerCertificate(certArn);
    // generate symmetric key
    final MessageDigest digest = Digest.SHA256.get();
    final byte[] salt = new byte[32];
    Crypto.getSecureRandomSupplier().get().nextBytes(salt);
    digest.update(salt);/*from   w  w w  .j a  v a2 s .c  om*/
    final SecretKey symmKey = new SecretKeySpec(digest.digest(), "AES");

    try {
        // encrypt the server pk using symm key
        Cipher cipher = Ciphers.AES_CBC.get();
        final byte[] iv = new byte[16];
        Crypto.getSecureRandomSupplier().get().nextBytes(iv);
        cipher.init(Cipher.ENCRYPT_MODE, symmKey, new IvParameterSpec(iv),
                Crypto.getSecureRandomSupplier().get());
        final byte[] cipherText = cipher.doFinal(Base64.encode(targetCert.getPrivateKey().getBytes()));
        final String encPrivKey = new String(Base64.encode(Arrays.concatenate(iv, cipherText)));

        // encrypt the symmetric key using the certPem
        X509Certificate x509Cert = PEMFiles.getCert(B64.standard.dec(certPem));
        cipher = Ciphers.RSA_PKCS1.get();
        cipher.init(Cipher.ENCRYPT_MODE, x509Cert.getPublicKey(), Crypto.getSecureRandomSupplier().get());
        byte[] symmkey = cipher.doFinal(symmKey.getEncoded());
        final String b64SymKey = new String(Base64.encode(symmkey));

        return String.format("%s\n%s", b64SymKey, encPrivKey);
    } catch (final Exception ex) {
        throw Exceptions.toUndeclared(ex);
    }
}

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From source file:org.apache.nifi.processors.standard.util.crypto.AESKeyedCipherProvider.java

private boolean isValidKeyLength(SecretKey key) {
    return VALID_KEY_LENGTHS.contains(key.getEncoded().length * 8);
}

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From source file:spacetraffic.kiv.zcu.cz.gameelement.MinigamePasswordHasher.java

/**
 * Method for generating key./*from  w w  w  .  j av  a 2s .com*/
 * @return key
 * @throws Exception
 */
private Key generateKey() throws Exception {
    SecretKeyFactory factory = SecretKeyFactory.getInstance(ALGORITHM);
    char[] pdkbf2Password = PDKBF2_PASSWORD.toCharArray();
    byte[] salt = SALT.getBytes(CHARSET);

    KeySpec keySpec = new PBEKeySpec(pdkbf2Password, salt, 65536, 128);
    SecretKey secretKey = factory.generateSecret(keySpec);
    byte[] encodedKey = secretKey.getEncoded();

    return new SecretKeySpec(encodedKey, "AES");
}

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From source file:org.matrix.security.crypto.encrypt.AesBytesEncryptor.java

public AesBytesEncryptor(String password, CharSequence salt, BytesKeyGenerator ivGenerator) {
    PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray(), Hex.decode(salt), 1024, 256);
    SecretKey secretKey = newSecretKey("PBKDF2WithHmacSHA1", keySpec);
    this.secretKey = new SecretKeySpec(secretKey.getEncoded(), "AES");
    encryptor = newCipher(AES_ALGORITHM);
    decryptor = newCipher(AES_ALGORITHM);
    this.ivGenerator = ivGenerator != null ? ivGenerator : NULL_IV_GENERATOR;
}

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From source file:Util.PassGen.java

private String hash(String password, byte[] salt) throws Exception {
    if (password == null || password.length() == 0) {
        throw new IllegalArgumentException("Empty passwords are not supported.");
    }//from  ww  w.  j  av  a  2 s  .c o m
    SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
    SecretKey key = f.generateSecret(new PBEKeySpec(password.toCharArray(), salt, iterations, desiredKeyLen));
    return Base64.encodeBase64String(key.getEncoded());
}

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