Example usage for javax.crypto.spec SecretKeySpec SecretKeySpec

Introduction

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

Prototype

public SecretKeySpec(byte[] key, String algorithm)

Source Link

Document

Constructs a secret key from the given byte array.

Usage

From source file:co.mitro.twofactor.TwoFactorCodeChecker.java

public static int computeHash(byte[] key, long t) throws NoSuchAlgorithmException, InvalidKeyException {
    byte[] data = new byte[8];
    long value = t;
    for (int i = 8; i-- > 0; value >>>= 8) {
        data[i] = (byte) value;
    }/* ww w .ja v  a 2s .  c  o m*/
    SecretKeySpec signKey = new SecretKeySpec(key, "HmacSHA1");
    Mac mac = Mac.getInstance("HmacSHA1");
    mac.init(signKey);
    byte[] hash = mac.doFinal(data);
    int offset = hash[20 - 1] & 0xF;
    long truncatedHash = 0;
    for (int i = 0; i < 4; ++i) {
        truncatedHash <<= 8;
        truncatedHash |= (hash[offset + i] & 0xFF);
    }
    truncatedHash &= 0x7FFFFFFF;
    truncatedHash %= 1000000;
    return (int) truncatedHash;
}

From source file:me.whitmarbut.mfa.TOTP.java

private byte[] getHmac(int timestamp, byte[] key) throws NoSuchAlgorithmException, InvalidKeyException {
    SecretKeySpec key_spec = new SecretKeySpec(key, "HmacSHA1");
    Mac mac = Mac.getInstance("HmacSHA1");
    mac.init(key_spec);//from w w  w. j  av  a  2s .co  m
    byte[] bin_timestamp = ByteBuffer.allocate(4).putInt(timestamp).array();

    ByteBuffer bbuff = ByteBuffer.allocate(8);
    bbuff.putInt(0); //Left pad 4 bytes to make a 64 bit int
    bbuff.putInt(timestamp);

    return mac.doFinal(bbuff.array());
}

From source file:com.jsmartframework.web.manager.CsrfEncrypter.java

private static Cipher getDecryptCipher(HttpServletRequest request, String key) throws Exception {
    Cipher decryptCipher = (Cipher) request.getAttribute(REQUEST_CSRF_DECRYPT_CIPHER);
    if (decryptCipher == null) {
        decryptCipher = Cipher.getInstance("AES");
        SecretKey secretKey = new SecretKeySpec(key.getBytes("UTF8"), "AES");
        decryptCipher.init(Cipher.DECRYPT_MODE, secretKey);
        request.setAttribute(REQUEST_CSRF_DECRYPT_CIPHER, decryptCipher);
    }//from  w ww . j ava  2 s .  c o  m
    return decryptCipher;
}

From source file:at.alladin.rmbt.shared.Helperfunctions.java

public static String calculateHMAC(final String secret, final String data) {
    try {//  ww w.  j  av a2  s. c om
        final SecretKeySpec signingKey = new SecretKeySpec(secret.getBytes(), "HmacSHA1");
        final Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(signingKey);
        final byte[] rawHmac = mac.doFinal(data.getBytes());
        final String result = new String(Base64.encodeBytes(rawHmac));
        return result;
    } catch (final GeneralSecurityException e) {

        System.out.println("Unexpected error while creating hash: " + e.getMessage());
        return "";
    }
}

From source file:com.jsmartframework.web.manager.AuthEncrypter.java

private static Cipher getDecryptCipher(HttpServletRequest request, String key) throws Exception {
    Cipher decryptCipher = (Cipher) request.getAttribute(REQUEST_AUTH_DECRYPT_CIPHER);
    if (decryptCipher == null) {
        decryptCipher = Cipher.getInstance("AES");
        SecretKey secretKey = new SecretKeySpec(key.getBytes("UTF8"), "AES");
        decryptCipher.init(Cipher.DECRYPT_MODE, secretKey);
        request.setAttribute(REQUEST_AUTH_DECRYPT_CIPHER, decryptCipher);
    }/* w ww .j a  v a2 s.  com*/
    return decryptCipher;
}

From source file:org.esupportail.papercut.services.HashService.java

public void setHmacKey(String hmacKey) {
    secretKey = new SecretKeySpec(DatatypeConverter.parseHexBinary(hmacKey), "HmacSHA512");
}

From source file:com.cloud.utils.EncryptionUtil.java

public static String generateSignature(String data, String key) {
    try {//  ww  w  .  j ava2s . c  o  m
        final Mac mac = Mac.getInstance("HmacSHA1");
        final SecretKeySpec keySpec = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA1");
        mac.init(keySpec);
        mac.update(data.getBytes("UTF-8"));
        final byte[] encryptedBytes = mac.doFinal();
        return Base64.encodeBase64String(encryptedBytes);
    } catch (NoSuchAlgorithmException | InvalidKeyException | UnsupportedEncodingException e) {
        s_logger.error("exception occurred which encoding the data." + e.getMessage());
        throw new CloudRuntimeException("unable to generate signature", e);
    }
}

From source file:net.seleucus.wsp.crypto.FwknopSymmetricCrypto.java

public static String sign(byte[] auth_key, String message, byte hmac_type)
        throws NoSuchAlgorithmException, InvalidKeyException {
    // Check if hmac_type is valid
    if (hmac_type > 4 || hmac_type < 0)
        throw new IllegalArgumentException("Invalid digest type was specified");

    // Create Mac instance 
    Mac hmac;/*from   w  ww  . j a  va  2  s .c  om*/
    hmac = Mac.getInstance(HMAC_ALGORITHMS[hmac_type]);

    // Create key
    SecretKeySpec hmac_key = new SecretKeySpec(auth_key, HMAC_ALGORITHMS[hmac_type]);

    // Init hmac object
    hmac.init(hmac_key);

    // Prepare enc_part to calculate HMAC
    byte[] msg_to_hmac = FWKNOP_ENCRYPTION_HEADER.concat(message).getBytes();

    // Calculate HMAC and return
    return message.concat(Base64.encodeBase64String(hmac.doFinal(msg_to_hmac)).replace("=", ""));
}

From source file:com.imaginary.home.cloud.Configuration.java

static public @Nonnull String encrypt(@Nonnull String keySalt, @Nonnull String value) {
    try {//from   w w w.  j  av a2  s.co m
        SecretKeySpec spec = new SecretKeySpec(getConfiguration().getCustomSalt(keySalt), "AES");
        Cipher cipher = Cipher.getInstance("AES");

        cipher.init(Cipher.ENCRYPT_MODE, spec);

        byte[] raw = value.getBytes("utf-8");
        byte[] encrypted = cipher.doFinal(raw);
        byte[] b64 = Base64.encodeBase64(encrypted);
        return new String(b64, "utf-8");
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:com.scorpio4.util.io.IOStreamCrypto.java

public CipherOutputStream encrypt(OutputStream out) throws NoSuchPaddingException, NoSuchAlgorithmException,
        InvalidAlgorithmParameterException, InvalidKeyException {
    final SecretKey key = new SecretKeySpec(bytePassword, cipherSpec);
    final IvParameterSpec IV = new IvParameterSpec(ivBytes);
    final Cipher cipher = Cipher.getInstance(cipherTransformation);
    cipher.init(Cipher.ENCRYPT_MODE, key, IV);
    return new CipherOutputStream(new Base64OutputStream(out), cipher);
}