Example usage for javax.crypto.spec DESedeKeySpec DESedeKeySpec

Introduction

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

Prototype

public DESedeKeySpec(byte[] key) throws InvalidKeyException 

Source Link

Document

Creates a DESedeKeySpec object using the first 24 bytes in key as the key material for the DES-EDE key.

Usage

From source file:org.alfresco.repo.lotus.ws.impl.auth.LtpaAuthenticator.java

private byte[] decrypt(byte[] token, byte[] key, String algorithm) throws Exception {
    SecretKey sKey = null;//from  w w  w  . j  a va  2s  .  c  o  m

    if (algorithm.indexOf("AES") != -1) {
        sKey = new SecretKeySpec(key, 0, 16, "AES");
    } else {
        DESedeKeySpec kSpec = new DESedeKeySpec(key);
        SecretKeyFactory kFact = SecretKeyFactory.getInstance("DESede");
        sKey = kFact.generateSecret(kSpec);
    }
    Cipher cipher = Cipher.getInstance(algorithm);

    if (algorithm.indexOf("ECB") == -1) {
        if (algorithm.indexOf("AES") != -1) {
            IvParameterSpec ivs16 = generateIvParameterSpec(key, 16);
            cipher.init(Cipher.DECRYPT_MODE, sKey, ivs16);
        } else {
            IvParameterSpec ivs8 = generateIvParameterSpec(key, 8);
            cipher.init(Cipher.DECRYPT_MODE, sKey, ivs8);
        }
    } else {
        cipher.init(Cipher.DECRYPT_MODE, sKey);
    }
    return cipher.doFinal(token);
}

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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. j a v  a  2 s.  co 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();
        ;
    }

}

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

/**
 *default constructor/*from  w  w  w.  j a v a2  s  . c o  m*/
 * @throws Exception
 */
public TripleDESCrytor() throws Exception {
    String keyfromfile = CryptorFactory.loadKeyFromFile("TripleDESCrytor");
    if (keyfromfile != null)
        myEncryptionKey = keyfromfile;
    else
        myEncryptionKey = "rioTEBCe/RAHRs6tTyYxDqettnVbZA6z";
    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);
}

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From source file:org.apache.xml.security.samples.encryption.Decrypter.java

private static SecretKey loadKeyEncryptionKey() throws Exception {

    String fileName = "kek";
    String jceAlgorithmName = "DESede";

    File kekFile = new File(fileName);

    DESedeKeySpec keySpec = new DESedeKeySpec(JavaUtils.getBytesFromFile(fileName));
    SecretKeyFactory skf = SecretKeyFactory.getInstance(jceAlgorithmName);
    SecretKey key = skf.generateSecret(keySpec);

    System.out.println("Key encryption key loaded from " + kekFile.toURL().toString());
    return key;//from   w ww  .j  a v a 2 s . c  o m
}

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From source file:org.apache.xml.security.test.encryption.BobKeyResolver.java

/**
 * Method engineResolveSecretKey/*from w  ww .  j  av  a 2s  .  c o m*/
 *
 * @param element
 * @param BaseURI
 * @param storage
 *
 * @throws KeyResolverException
 */
public javax.crypto.SecretKey engineLookupAndResolveSecretKey(Element element, String BaseURI,
        StorageResolver storage) throws KeyResolverException {

    if (engineCanResolve(element, BaseURI, storage)) {
        try {
            DESedeKeySpec keySpec = new DESedeKeySpec("abcdefghijklmnopqrstuvwx".getBytes("ASCII"));
            SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
            SecretKey key = keyFactory.generateSecret(keySpec);

            return key;
        } catch (Exception e) {
            throw new KeyResolverException("Something badly wrong in creation of bob's key");
        }
    }

    return null;
}

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From source file:org.apache.xml.security.test.encryption.EncryptContentTest.java

public void setUp() throws Exception {

    org.apache.xml.security.Init.init();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    dbf.setNamespaceAware(true);/*from   w w w. ja v a 2  s.  co m*/
    db = dbf.newDocumentBuilder();

    byte[] bits192 = "abcdefghijklmnopqrstuvwx".getBytes();
    DESedeKeySpec keySpec = new DESedeKeySpec(bits192);
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
    secretKey = keyFactory.generateSecret(keySpec);

    TransformerFactory tf = TransformerFactory.newInstance();
    tf.newTransformer();

    // Determine if we have ISO 10126 Padding - needed for Bulk AES or
    // 3DES encryption

    haveISOPadding = false;
    String algorithmId = JCEMapper
            .translateURItoJCEID(org.apache.xml.security.utils.EncryptionConstants.ALGO_ID_BLOCKCIPHER_AES128);

    if (algorithmId != null) {
        try {
            if (Cipher.getInstance(algorithmId) != null)
                haveISOPadding = true;
        } catch (NoSuchAlgorithmException nsae) {
        } catch (NoSuchPaddingException nspe) {
        }
    }

}

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From source file:org.apache.xml.security.test.encryption.XMLCipherTester.java

/**
 * Test encryption using a generated AES 192 bit key that is
 * encrypted using a 3DES key.  Then reverse by decrypting 
 * EncryptedKey by hand/*from w  w  w .  java 2  s. c  o  m*/
 */

public void testAES192ElementAES256KWCipher() throws Exception {

    Document d = document(); // source
    Document ed = null;
    Document dd = null;
    Element e = (Element) d.getElementsByTagName(element()).item(index());
    Element ee = null;

    String source = null;
    String target = null;

    if (haveISOPadding && haveKeyWraps) {

        source = toString(d);

        // Set up a Key Encryption Key
        byte[] bits192 = "abcdefghijklmnopqrstuvwx".getBytes();
        DESedeKeySpec keySpec = new DESedeKeySpec(bits192);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
        Key kek = keyFactory.generateSecret(keySpec);

        // Generate a traffic key
        KeyGenerator keygen = KeyGenerator.getInstance("AES");
        keygen.init(192);
        Key key = keygen.generateKey();

        cipher = XMLCipher.getInstance(XMLCipher.TRIPLEDES_KeyWrap);
        cipher.init(XMLCipher.WRAP_MODE, kek);
        EncryptedKey encryptedKey = cipher.encryptKey(d, key);

        // encrypt
        cipher = XMLCipher.getInstance(XMLCipher.AES_192);
        cipher.init(XMLCipher.ENCRYPT_MODE, key);
        EncryptedData builder = cipher.getEncryptedData();

        KeyInfo builderKeyInfo = builder.getKeyInfo();
        if (builderKeyInfo == null) {
            builderKeyInfo = new KeyInfo(d);
            builder.setKeyInfo(builderKeyInfo);
        }

        builderKeyInfo.add(encryptedKey);

        ed = cipher.doFinal(d, e);

        //decrypt
        key = null;
        ee = (Element) ed.getElementsByTagName("xenc:EncryptedData").item(0);
        cipher = XMLCipher.getInstance();
        cipher.init(XMLCipher.DECRYPT_MODE, null);

        EncryptedData encryptedData = cipher.loadEncryptedData(ed, ee);

        if (encryptedData == null) {
            System.out.println("ed is null");
        } else if (encryptedData.getKeyInfo() == null) {
            System.out.println("ki is null");
        }
        EncryptedKey ek = encryptedData.getKeyInfo().itemEncryptedKey(0);

        if (ek != null) {
            XMLCipher keyCipher = XMLCipher.getInstance();
            keyCipher.init(XMLCipher.UNWRAP_MODE, kek);
            key = keyCipher.decryptKey(ek, encryptedData.getEncryptionMethod().getAlgorithm());
        }

        // Create a new cipher just to be paranoid
        XMLCipher cipher3 = XMLCipher.getInstance();
        cipher3.init(XMLCipher.DECRYPT_MODE, key);
        dd = cipher3.doFinal(ed, ee);

        target = toString(dd);

        Assert.assertEquals(source, target);
    } else {
        log.warn("Test testAES192ElementAES256KWCipher skipped as necessary algorithms not available");
    }
}

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From source file:org.apache.xml.security.test.encryption.XMLCipherTester.java

public void testTrippleDesElementCipher() throws Exception {
    Document d = document(); // source
    Document ed = null; // target
    Document dd = null; // target
    Element e = (Element) d.getElementsByTagName(element()).item(index());
    Element ee = null;/* w w  w  .j a v  a 2 s .  com*/

    String source = null;
    String target = null;

    if (haveISOPadding) {

        source = toString(d);

        // prepare for encryption
        byte[] passPhrase = "24 Bytes per DESede key!".getBytes();
        DESedeKeySpec keySpec = new DESedeKeySpec(passPhrase);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
        SecretKey key = keyFactory.generateSecret(keySpec);

        // encrypt
        cipher = XMLCipher.getInstance(XMLCipher.TRIPLEDES);
        cipher.init(XMLCipher.ENCRYPT_MODE, key);
        ed = cipher.doFinal(d, e);

        //decrypt
        cipher = XMLCipher.getInstance(XMLCipher.TRIPLEDES);
        cipher.init(XMLCipher.DECRYPT_MODE, key);
        ee = (Element) ed.getElementsByTagName("xenc:EncryptedData").item(0);
        EncryptedData encryptedData = cipher.loadEncryptedData(ed, ee);
        Assert.assertEquals(encryptedData.getEncryptionMethod().getAlgorithm(), XMLCipher.TRIPLEDES);
        dd = cipher.doFinal(ed, ee);

        target = toString(dd);
        Assert.assertEquals(source, target);
    } else {
        log.warn("Test testTrippleDesElementCipher skipped as necessary algorithms not available");
    }
}

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From source file:org.apache.xml.security.test.encryption.XMLCipherTester.java

public void testTrippleDesDocumentCipher() throws Exception {
    Document d = document(); // source
    Document ed = null; // target
    Document dd = null; // target
    Element e = d.getDocumentElement();
    Element ee = null;// w w  w .  j  av a  2s  .  co m

    String source = null;
    String target = null;

    if (haveISOPadding) {

        source = toString(d);

        // prepare for encryption
        byte[] passPhrase = "24 Bytes per DESede key!".getBytes();
        DESedeKeySpec keySpec = new DESedeKeySpec(passPhrase);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
        SecretKey key = keyFactory.generateSecret(keySpec);

        // encrypt
        cipher = XMLCipher.getInstance(XMLCipher.TRIPLEDES);
        cipher.init(XMLCipher.ENCRYPT_MODE, key);
        ed = cipher.doFinal(d, e);

        //decrypt
        cipher = XMLCipher.getInstance(XMLCipher.TRIPLEDES);
        cipher.init(XMLCipher.DECRYPT_MODE, key);
        ee = (Element) ed.getElementsByTagName("xenc:EncryptedData").item(0);
        dd = cipher.doFinal(ed, ee);

        target = toString(dd);

        Assert.assertEquals(source, target);
    } else {
        log.warn("Test testTrippleDesDocumentCipher skipped as necessary algorithms not available");
    }
}

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From source file:org.casbah.provider.SSLeayEncoder.java

private static DESedeKeySpec calculateKeyFromPassKey(byte[] keypass, byte[] salt)
        throws IOException, GeneralSecurityException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    MessageDigest md = MessageDigest.getInstance("MD5");
    byte[] digest = null;
    while (baos.size() < 24) {
        md.reset();//from  w  w w.  ja  v  a  2 s.  c  om
        if (digest != null) {
            md.update(digest);
        }
        md.update(keypass);
        digest = md.digest(salt);
        baos.write(digest);
    }
    DESedeKeySpec result = new DESedeKeySpec(baos.toByteArray());
    return result;
}

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