Example usage for javax.crypto.spec PBEKeySpec PBEKeySpec

Introduction

In this page you can find the example usage for javax.crypto.spec PBEKeySpec PBEKeySpec.

Prototype

public PBEKeySpec(char[] password, byte[] salt, int iterationCount, int keyLength) 

Source Link

Document

Constructor that takes a password, salt, iteration count, and to-be-derived key length for generating PBEKey of variable-key-size PBE ciphers.

Usage

From source file:com.connorbrezinsky.msg.security.Hash.java

private static String hash(String password, byte[] salt) throws Exception {
    if (password == null || password.length() == 0)
        throw new IllegalArgumentException("Empty passwords are not supported.");
    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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From source file:com.ro.ssc.app.client.licensing.TrialKeyGenerator.java

public static String generateKey(String toEncode) {

    String encoded = "";
    try {/*  w  w w . jav a 2s  . c  om*/
        byte[] saltEncrypt = SALT_ENCRYPT.getBytes();
        SecretKeyFactory factoryKeyEncrypt = SecretKeyFactory.getInstance(SECRET_KEY_FACTORY);
        SecretKey tmp = factoryKeyEncrypt.generateSecret(
                new PBEKeySpec(PASS_ENCRYPT.toCharArray(), saltEncrypt, ITERATIONS_ENCRYPT, KEY_LENGTH));
        SecretKeySpec encryptKey = new SecretKeySpec(tmp.getEncoded(), ALGORITHM);
        Cipher aesCipherEncrypt = Cipher.getInstance(CIPHER);
        aesCipherEncrypt.init(Cipher.ENCRYPT_MODE, encryptKey);
        byte[] bytes = StringUtils.getBytesUtf8(toEncode);
        byte[] encryptBytes = aesCipherEncrypt.doFinal(bytes);
        encoded = Base64.encodeBase64URLSafeString(encryptBytes);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return encoded;
}

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From source file:com.hurence.logisland.util.string.Anonymizer.java

public String anonymize(String str) throws NoSuchAlgorithmException, InvalidKeySpecException {

    // Hash the password
    PBEKeySpec spec = new PBEKeySpec(str.toCharArray(), salt, PBKDF2_ITERATIONS, HASH_BYTE_SIZE * 8);
    SecretKeyFactory skf = SecretKeyFactory.getInstance(PBKDF2_ALGORITHM);
    byte[] hash = skf.generateSecret(spec).getEncoded();

    return Hex.encodeHexString(hash);
}

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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:CipherProvider.java

/**
 * Create cipher for encrypt or decrypt backup content
 *
 * @param passwd passwd for encryption/*from  www.j a  v  a2s  . c o  m*/
 * @param mode   encrypt/decrypt mode
 *
 * @return instance of cipher
 */
private static Cipher getCipher(final String passwd, final int mode) {
    /* Derive the key, given password and salt. */
    Cipher cipher = null;
    try {
        SecretKeyFactory factory = null;
        factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        String salt = "slNadZlato#%^^&(&(5?@#5166?1561?#%^^*^&54431"; // only pseudorandom salt
        KeySpec spec = new PBEKeySpec(passwd.toCharArray(), salt.getBytes(), 65536, 128);
        SecretKey tmp = factory.generateSecret(spec);
        SecretKey secret = new SecretKeySpec(tmp.getEncoded(), CIPHER_TYPE);

        // initialization vector
        byte[] iv = Arrays.copyOfRange(DigestUtils.md5(passwd), 0, 16);
        AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);

        // Cipher for encryption
        cipher = Cipher.getInstance(CIPHER_TYPE + "/CBC/PKCS5Padding");
        cipher.init(mode, secret, paramSpec);
    } catch (Exception e) {
        e.printStackTrace(); //Todo implementovat
    }
    return cipher;
}

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

/**
 * Generate a {@link SecretKey} from a password and salt
 *
 * @param password//from   w  w  w  .j a v  a  2 s. co m
 * @param salt
 * @return
 */
public SecretKey createSecretKey(String password, byte[] salt) {
    try {
        PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, 1024, 256);
        SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
        SecretKey secretKey = factory.generateSecret(keySpec);
        return new SecretKeySpec(secretKey.getEncoded(), "AES");
    } catch (GeneralSecurityException e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.gvmax.common.util.Enc.java

public Enc(String password, int keyLength) {
    if (password == null || password.trim().equals("")) {
        enabled = false;/*  www. j  a v  a  2  s .c  om*/
    } else {
        enabled = true;
        try {
            SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
            KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 1024, keyLength);
            key = new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES");
            c = Cipher.getInstance("AES/CBC/PKCS5Padding");
        } catch (Exception e) {
            logger.error(e);
        }
    }
}

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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 a2s. 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.thoughtworks.go.domain.AccessTokenTest.java

@Test
void hashToken_shouldHashTheProvidedString() throws Exception {
    AccessToken.AccessTokenWithDisplayValue token = AccessToken.create(null, null, null, new TestingClock());

    SecretKey key = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256")
            .generateSecret(new PBEKeySpec(token.getDisplayValue().substring(8).toCharArray(),
                    token.getSaltValue().getBytes(StandardCharsets.UTF_8), 4096, 256));

    assertThat(token.getValue()).isEqualTo(Hex.encodeHexString(key.getEncoded()));
}

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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.");
    }/* w  ww  .  j  a v a 2 s .c om*/
    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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