Example usage for javax.crypto SecretKeyFactory getInstance

List of usage examples for javax.crypto SecretKeyFactory getInstance

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Introduction

In this page you can find the example usage for javax.crypto SecretKeyFactory getInstance.

Prototype

public static final SecretKeyFactory getInstance(String algorithm) throws NoSuchAlgorithmException

Source Link

Document

Returns a SecretKeyFactory object that converts secret keys of the specified algorithm.

Usage

From source file:it.scoppelletti.security.keygen.DESedeKeyToPropertySetProvider.java

public Properties toProperties(Key key) {
    byte[] data;//  w w  w  .  j a  va 2  s  .com
    SecretKey desKey;
    SecretKeyFactory keyFactory;
    DESedeKeySpec param;
    Properties props;

    if (!(key instanceof SecretKey)) {
        return null;
    }

    try {
        keyFactory = SecretKeyFactory.getInstance(DESedeKeyFactory.ALGORITHM);
    } catch (NoSuchAlgorithmException ex) {
        return null;
    }

    try {
        desKey = keyFactory.translateKey((SecretKey) key);
    } catch (InvalidKeyException ex) {
        return null;
    }

    try {
        param = (DESedeKeySpec) keyFactory.getKeySpec(desKey, DESedeKeySpec.class);
    } catch (InvalidKeySpecException ex) {
        return null;
    }

    props = new Properties();
    props.setProperty(CryptoUtils.PROP_KEYFACTORY, DESedeKeyFactory.class.getName());
    data = param.getKey();
    props.setProperty(DESedeKeyFactory.PROP_KEY, Hex.encodeHexString(data));
    Arrays.fill(data, Byte.MIN_VALUE);

    return props;
}

From source file:com.marvelution.jira.plugins.hudson.encryption.StringEncrypter.java

/**
 * Constructor//from w  ww  .ja v a 2s .c o m
 */
public StringEncrypter() {
    try {
        keySpec = new DESedeKeySpec(DEFAULT_ENCRYPTION_KEY.getBytes(UNICODE_FORMAT));
        keyFactory = SecretKeyFactory.getInstance(DESEDE_ENCRYPTION_SCHEME);
        cipher = Cipher.getInstance(DESEDE_ENCRYPTION_SCHEME);
    } catch (Exception e) {
        LOGGER.fatal("Failed to initilise String Encryption classes. Reason: " + e.getMessage(), e);
        throw new StringEncryptionException(
                "Failed to initilise String Encryption classes. Reason: " + e.getMessage(), e);
    }
}

From source file:org.talend.daikon.security.CryptoHelper.java

/**
 * @param passPhrase the pass phrase used to encrypt and decrypt strings.
 *///from w w  w . ja  v a  2 s .c o m
public CryptoHelper(String passPhrase) {
    try {
        // Create the key
        KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
        SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec); //$NON-NLS-1$
        ecipher = Cipher.getInstance(key.getAlgorithm());
        dcipher = Cipher.getInstance(key.getAlgorithm());

        // Prepare the parameter to the ciphers
        AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);

        // Create the ciphers
        ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
    } catch (Exception e) {
        // do nothing
    }
}

From source file:club.jmint.crossing.specs.Security.java

public static String desEncrypt(String data, String key) throws CrossException {
    String ret = null;//  w ww . jav a2s.  c o m
    try {
        DESKeySpec desKey = new DESKeySpec(key.getBytes("UTF-8"));
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey securekey = keyFactory.generateSecret(desKey);

        Cipher cipher = Cipher.getInstance(CIPHER_DES_ALGORITHM);
        SecureRandom random = new SecureRandom();
        cipher.init(Cipher.ENCRYPT_MODE, securekey, random);
        byte[] results = cipher.doFinal(data.getBytes("UTF-8"));
        ret = Base64.encodeBase64String(results);
    } catch (Exception e) {
        CrossLog.printStackTrace(e);
        throw new CrossException(ErrorCode.COMMON_ERR_ENCRYPTION.getCode(),
                ErrorCode.COMMON_ERR_ENCRYPTION.getInfo());
    }
    return ret;
}

From source file:org.craftercms.social.util.support.security.crypto.SimpleDesCipher.java

public SimpleDesCipher(String base64Key) {
    try {//from   ww w .j a v  a 2 s. c om
        cipher = Cipher.getInstance("DESede");
    } catch (NoSuchAlgorithmException e1) {
        log.error(e1.getMessage(), e1);
    } catch (NoSuchPaddingException e) {
        log.error(e.getMessage(), e);
    }

    byte[] raw = Base64.decodeBase64(base64Key);

    DESedeKeySpec keyspec;
    try {
        keyspec = new DESedeKeySpec(raw);

        SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("DESede");
        skey = keyfactory.generateSecret(keyspec);
    } catch (InvalidKeyException e) {
        log.error(e.getMessage(), e);
    } catch (NoSuchAlgorithmException e) {
        log.error(e.getMessage(), e);
    } catch (InvalidKeySpecException e) {
        log.error(e.getMessage(), e);
    }
}

From source file:org.apache.juddi.v3.client.cryptor.DefaultCryptor.java

/**
 * Constructor for DefaultCryptor.//from w  w  w  . j a va2  s  . c o m
 */
public DefaultCryptor() throws NoSuchAlgorithmException, InvalidKeySpecException {
    // Create PBE parameter set
    pbeParamSpec = new PBEParameterSpec(salt, count);
    pbeKeySpec = new PBEKeySpec("saagar".toCharArray());
    keyFac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
    pbeKey = keyFac.generateSecret(pbeKeySpec);
}

From source file:net.bioclipse.encryption.Encrypter.java

public String encrypt(String plaintext) {
    SecretKeyFactory keyFac;//from ww  w  .java2s .  c o  m
    SecretKey pbeKey;
    Cipher pbeCipher;
    try {
        keyFac = SecretKeyFactory.getInstance(METHOD);
        pbeKey = keyFac.generateSecret(pbeKeySpec);
        pbeCipher = Cipher.getInstance(METHOD);
        pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParamSpec);
        return new String(Base64.encodeBase64(pbeCipher.doFinal(plaintext.getBytes())));
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException(e);
    } catch (InvalidKeySpecException e) {
        throw new IllegalStateException(e);
    } catch (NoSuchPaddingException e) {
        throw new IllegalStateException(e);
    } catch (InvalidKeyException e) {
        throw new IllegalStateException(e);
    } catch (InvalidAlgorithmParameterException e) {
        throw new IllegalStateException(e);
    } catch (IllegalBlockSizeException e) {
        throw new IllegalStateException(e);
    } catch (BadPaddingException e) {
        throw new IllegalStateException(e);
    }
}

From source file:org.jajim.utilidades.cifrado.Cifrador.java

/**
 * Constructor de la clase. Inicializa el cifrador.
 * <p>/*from   w  ww . jav  a  2s  .co  m*/
 * @throws ImposibleCifrarDescifrarException Si no se puede instanciar un ci frador adecuado.
 */
public Cifrador() throws ImposibleCifrarDescifrarException {

    try {
        // Inicializacin de la clave
        SecretKeyFactory skf = SecretKeyFactory.getInstance("DES");
        String clave = "cjliamve";
        DESKeySpec kspec = new DESKeySpec(clave.getBytes());
        sk = skf.generateSecret(kspec);
        // Inicializacin del cifrador
        cifrado = Cipher.getInstance("DES");
    } catch (NoSuchAlgorithmException | InvalidKeyException | InvalidKeySpecException
            | NoSuchPaddingException e) {
        // En caso de que se produzca un error se escribe en el fichero
        // de log y se lanza una excepcin
        ManejadorDeLogs mdl = ManejadorDeLogs.getManejadorDeLogs();
        mdl.escribir("No se puede crear un cifrador de DES");
        throw new ImposibleCifrarDescifrarException();
    }
}

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);
}

From source file:org.orcid.core.crypto.DesEncrypter.java

private void initDesEncrypter(final String passPhrase) {
    try {//w  w  w . j  a  v a  2  s  . com
        // Create the key
        KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), salt, iterationCount);
        SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
        ecipher = Cipher.getInstance(key.getAlgorithm());
        dcipher = Cipher.getInstance(key.getAlgorithm());

        // Prepare the parameter to the ciphers
        AlgorithmParameterSpec paramSpec = new PBEParameterSpec(salt, iterationCount);

        // Create the ciphers
        ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
    } catch (GeneralSecurityException e) {
        LOGGER.trace("DesEncrypter.creation failed", e);
        throw new ApplicationException("DesEncrypter creation failed", e);
    }
}