Example usage for javax.crypto SecretKey getAlgorithm

Introduction

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

Prototype

public String getAlgorithm();

Source Link

Document

Returns the standard algorithm name for this key.

Usage

From source file:dualcontrol.CryptoHandler.java

public void handle(DualControlKeyStoreSession dualControl, Socket socket) throws Exception {
    try {//from  w w w  . jav a 2s.  c  o m
        this.dualControl = dualControl;
        DataInputStream dis = new DataInputStream(socket.getInputStream());
        int length = dis.readShort();
        byte[] bytes = new byte[length];
        dis.readFully(bytes);
        String data = new String(bytes);
        String[] fields = data.split(":");
        String mode = fields[0];
        String alias = fields[1];
        this.dos = new DataOutputStream(socket.getOutputStream());
        if (mode.equals("GETKEY")) {
            if (enableGetKey) {
                SecretKey key = dualControl.loadKey(alias);
                dos.writeUTF(key.getAlgorithm());
                write(key.getEncoded());
            }
        } else {
            cipher(mode, alias, fields[2], fields[3], fields[4]);
        }
    } finally {
        dos.close();
    }
}

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From source file:dualcontrol.CryptoHandler.java

private void cipher(String mode, String alias, String transformation, String ivString, String dataString)
        throws Exception {
    logger.debug(join("cipher", alias, transformation, mode));
    SecretKey key = dualControl.loadKey(alias);
    logger.debug("keyalg " + key.getAlgorithm());
    Cipher cipher = Cipher.getInstance(transformation);
    logger.debug("mode " + mode);
    if (mode.equals("DECRYPT")) {
        this.ivBytes = Base64.decodeBase64(ivString);
        logger.debug("iv " + Base64.encodeBase64String(ivBytes));
        IvParameterSpec ivSpec = new IvParameterSpec(ivBytes);
        cipher.init(Cipher.DECRYPT_MODE, key, ivSpec);
        this.dataBytes = cipher.doFinal(Base64.decodeBase64(dataString));
        write(ivBytes, dataBytes);//ww  w .  j a  va 2s .  c o  m
    } else if (mode.equals("ENCRYPT")) {
        this.ivBytes = getIvBytes(ivString);
        logger.debug("iv " + Base64.encodeBase64String(ivBytes));
        IvParameterSpec ivSpec = new IvParameterSpec(ivBytes);
        long startTime = System.nanoTime();
        cipher.init(Cipher.ENCRYPT_MODE, key, ivSpec);
        this.dataBytes = cipher.doFinal(dataString.getBytes());
        logger.info("encrypt time nanos " + Nanos.elapsed(startTime));
        write(ivBytes, dataBytes);
    }
}

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From source file:com.joyent.manta.client.crypto.SecretKeyUtilsTest.java

public void writeKeyToPath() throws IOException {
    File file = File.createTempFile("ciphertext-", ".data");
    FileUtils.forceDeleteOnExit(file);/* w  w  w  . jav  a  2 s  .com*/
    Path path = file.toPath();

    SupportedCipherDetails cipherDetails = AesGcmCipherDetails.INSTANCE_128_BIT;
    byte[] keyBytes = SecretKeyUtils.generate(cipherDetails).getEncoded();
    SecretKey key = SecretKeyUtils.loadKey(keyBytes, cipherDetails);
    SecretKeyUtils.writeKeyToPath(key, path);

    SecretKey actual = SecretKeyUtils.loadKeyFromPath(path, cipherDetails);
    Assert.assertEquals(actual.getAlgorithm(), key.getAlgorithm());
    Assert.assertTrue(Arrays.equals(key.getEncoded(), actual.getEncoded()));
}

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From source file:com.joyent.manta.client.crypto.SecretKeyUtilsTest.java

public void canLoadKeyFromFilePath() throws IOException {
    File file = File.createTempFile("ciphertext-", ".data");
    FileUtils.forceDeleteOnExit(file);/*w  ww  .j a  va2s  . c om*/
    FileUtils.writeByteArrayToFile(file, keyBytes);
    Path path = file.toPath();

    SecretKey expected = SecretKeyUtils.loadKey(keyBytes, AesGcmCipherDetails.INSTANCE_128_BIT);
    SecretKey actual = SecretKeyUtils.loadKeyFromPath(path, AesGcmCipherDetails.INSTANCE_128_BIT);

    Assert.assertEquals(actual.getAlgorithm(), expected.getAlgorithm());
    Assert.assertTrue(Arrays.equals(expected.getEncoded(), actual.getEncoded()),
            "Secret key loaded from URI doesn't match");
}

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From source file:com.aerohive.nms.engine.admin.task.licensemgr.common.AerohiveEncryptTool.java

public AerohiveEncryptTool(String arg_Key) {
    if (arg_Key != null && !arg_Key.trim().equals(""))
        m_Str_Key = arg_Key;

    try {/*w  ww  . j a  v a  2  s  .com*/
        // Create the key
        KeySpec keySpec = new PBEKeySpec(m_Str_Key.toCharArray(), m_Byte_Salt, m_Int_IterationCount);
        SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
        m_Cipher_Ecipher = Cipher.getInstance(key.getAlgorithm());
        m_Cipher_Dcipher = Cipher.getInstance(key.getAlgorithm());

        // Prepare the parameter to the ciphers
        AlgorithmParameterSpec paramSpec = new PBEParameterSpec(m_Byte_Salt, m_Int_IterationCount);

        // Create the ciphers
        m_Cipher_Ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        m_Cipher_Dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
    } catch (Exception e) {
        //DebugUtil.commonDebugWarn(e.getMessage());
    }
}

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From source file:de.alpharogroup.crypto.simple.SimpleDecryptor.java

/**
 * Initializes the {@link SimpleDecryptor} object.
 *
 * @throws InvalidAlgorithmParameterException
 *             is thrown if initialization of the cypher object fails.
 * @throws NoSuchPaddingException//from w  ww  .ja  v a 2 s  .  c o m
 *             is thrown if instantiation of the cypher object fails.
 * @throws InvalidKeySpecException
 *             is thrown if generation of the SecretKey object fails.
 * @throws NoSuchAlgorithmException
 *             is thrown if instantiation of the SecretKeyFactory object fails.
 * @throws InvalidKeyException
 *             is thrown if initialization of the cypher object fails.
 */
private void initialize() throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
        InvalidKeyException, InvalidAlgorithmParameterException {
    if (!isInitialized()) {
        KeySpec keySpec = null;
        if (this.getPrivateKey() != null) {
            keySpec = new PBEKeySpec(this.getPrivateKey().toCharArray());
        }
        if (this.getPrivateKey() == null) {
            keySpec = new PBEKeySpec(CryptConst.PRIVATE_KEY.toCharArray());
        }
        final SecretKeyFactory factory = SecretKeyFactory.getInstance(CryptConst.PBEWITH_MD5AND_DES);
        final SecretKey key = factory.generateSecret(keySpec);
        this.cipher = Cipher.getInstance(key.getAlgorithm());
        final AlgorithmParameterSpec paramSpec = new PBEParameterSpec(CryptConst.SALT,
                CryptConst.ITERATIONCOUNT);
        this.cipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
        initialized = true;
    }
}

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From source file:de.alpharogroup.crypto.simple.SimpleEncryptor.java

/**
 * Initializes the {@link SimpleEncryptor} object.
 * //from  ww  w.ja  v  a 2  s.c o m
 * @throws InvalidAlgorithmParameterException
 *             is thrown if initialization of the cypher object fails.
 * @throws NoSuchPaddingException
 *             is thrown if instantiation of the cypher object fails.
 * @throws InvalidKeySpecException
 *             is thrown if generation of the SecretKey object fails.
 * @throws NoSuchAlgorithmException
 *             is thrown if instantiation of the SecretKeyFactory object fails.
 * @throws InvalidKeyException
 *             is thrown if initialization of the cypher object fails.
 */
private void initialize() throws NoSuchAlgorithmException, InvalidKeySpecException, NoSuchPaddingException,
        InvalidKeyException, InvalidAlgorithmParameterException {
    if (!isInitialized()) {
        final KeySpec keySpec;
        if (this.getPrivateKey() != null) {
            keySpec = new PBEKeySpec(this.getPrivateKey().toCharArray());
        } else {
            keySpec = new PBEKeySpec(CryptConst.PRIVATE_KEY.toCharArray());
        }
        final SecretKeyFactory factory = SecretKeyFactory.getInstance(CryptConst.PBEWITH_MD5AND_DES);
        final SecretKey key = factory.generateSecret(keySpec);
        this.cipher = Cipher.getInstance(key.getAlgorithm());
        final AlgorithmParameterSpec paramSpec = new PBEParameterSpec(CryptConst.SALT,
                CryptConst.ITERATIONCOUNT);
        this.cipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
        initialized = true;
    }
}

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From source file:com.joyent.manta.client.crypto.SecretKeyUtilsTest.java

public void canLoadKeyFromURIPath() throws IOException {
    File file = File.createTempFile("ciphertext-", ".data");
    FileUtils.forceDeleteOnExit(file);/*from  w  w w .  ja va2  s  .  c o m*/
    FileUtils.writeByteArrayToFile(file, keyBytes);
    URI uri = file.toURI();

    SecretKey expected = SecretKeyUtils.loadKey(keyBytes, AesGcmCipherDetails.INSTANCE_128_BIT);
    SecretKey actual = SecretKeyUtils.loadKeyFromPath(Paths.get(uri), AesGcmCipherDetails.INSTANCE_128_BIT);

    Assert.assertEquals(actual.getAlgorithm(), expected.getAlgorithm());
    Assert.assertTrue(Arrays.equals(expected.getEncoded(), actual.getEncoded()),
            "Secret key loaded from URI doesn't match");
}

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From source file:by.bsuir.chujko.model.entities.security.StringCrypter.java

/**
 * To update secret key.//from  www . ja  v  a  2  s  .co m
 * 
 * @param key
 * @throws NoSuchPaddingException
 * @throws NoSuchAlgorithmException
 * @throws InvalidKeyException 
 */
private void updateSecretKey(SecretKey key)
        throws NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeyException {
    ecipher = Cipher.getInstance(key.getAlgorithm());
    dcipher = Cipher.getInstance(key.getAlgorithm());
    ecipher.init(Cipher.ENCRYPT_MODE, key);
    dcipher.init(Cipher.DECRYPT_MODE, key);
}

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From source file:de.betterform.xml.xforms.xpath.saxon.function.Hmac.java

/**
 * Evaluate in a general context//from   w w  w .ja  v a 2 s.  c  om
 */
public Item evaluateItem(XPathContext xpathContext) throws XPathException {
    final String key = argument[0].evaluateAsString(xpathContext).toString();
    final String data = argument[1].evaluateAsString(xpathContext).toString();
    final String originalAlgorithmString = argument[2].evaluateAsString(xpathContext).toString();
    final String algorithm = "Hmac" + originalAlgorithmString.replaceAll("-", "");
    final String encoding = argument != null && argument.length >= 4
            ? argument[3].evaluateAsString(xpathContext).toString()
            : kBASE64;

    if (!kSUPPORTED_ALG.contains(originalAlgorithmString)) {
        XPathFunctionContext functionContext = getFunctionContext(xpathContext);
        XFormsElement xformsElement = functionContext.getXFormsElement();
        throw new XPathException(new XFormsComputeException(
                "Unsupported algorithm '" + originalAlgorithmString + "'", xformsElement.getTarget(), this));
    }

    if (!kSUPPORTED_ENCODINGS.contains(encoding)) {
        XPathFunctionContext functionContext = getFunctionContext(xpathContext);
        XFormsElement xformsElement = functionContext.getXFormsElement();
        throw new XPathException(new XFormsComputeException("Unsupported encoding '" + encoding + "'",
                xformsElement.getTarget(), this));
    }

    try {
        // Generate a key for the HMAC-MD5 keyed-hashing algorithm; see RFC 2104
        // In practice, you would save this key.
        SecretKey secretKey = new SecretKeySpec(key.getBytes("utf-8"), algorithm);

        // Create a MAC object using HMAC-MD5 and initialize with kesaxoniay
        Mac mac = Mac.getInstance(secretKey.getAlgorithm());
        mac.init(secretKey);
        mac.update(data.getBytes("utf-8"));

        byte[] digest = mac.doFinal();

        final BinaryEncoder encoder;
        if ("base64".equals(encoding)) {
            encoder = new Base64(digest.length, "".getBytes(), false);
        } else {
            encoder = new Hex();
        }

        return new StringValue(new String(encoder.encode(digest), "ASCII"));

    } catch (NoSuchAlgorithmException e) {
        throw new XPathException(e);
    } catch (UnsupportedEncodingException e) {
        throw new XPathException(e);
    } catch (EncoderException e) {
        XPathFunctionContext functionContext = getFunctionContext(xpathContext);
        XFormsElement xformsElement = functionContext.getXFormsElement();
        throw new XPathException(
                new XFormsComputeException("Encoder exception.", e, xformsElement.getTarget(), this));
    } catch (InvalidKeyException e) {
        throw new XPathException(e);
    }

}

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