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:name.martingeisse.common.util.HmacUtil.java

/**
 * Base function to generate a HMAC.//from   w w w .  j  a va2 s  . c  o  m
 * 
 * @param payload the payload data
 * @param secret the secret to sign the HMAC
 * @param algorithm the HMAC algorithm to use
 * @return the HMAC
 */
public static byte[] generateHmac(byte[] payload, byte[] secret, String algorithm) {
    try {
        final Mac mac = Mac.getInstance(algorithm);
        mac.init(new SecretKeySpec(secret, algorithm));
        return mac.doFinal(payload);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    } catch (InvalidKeyException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

private static byte[] hmacSha1(byte[] value, byte[] key) {
    try {/*from w w w . j  a  va  2 s. co  m*/
        SecretKeySpec signingKey = new SecretKeySpec(key, "HmacSHA1");
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(signingKey);
        return mac.doFinal(value);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:com.liferay.sync.engine.util.Encryptor.java

public static String decrypt(String value) throws Exception {
    if (value == null) {
        return "";
    }/*  w ww .j a v  a2 s . com*/

    SecretKey secretKey = new SecretKeySpec(_PASSWORD, _ALGORITHM);

    Cipher cipher = Cipher.getInstance(_ALGORITHM);

    cipher.init(Cipher.DECRYPT_MODE, secretKey);

    String decryptedValue = value;

    for (int i = 0; i < _ITERATIONS; i++) {
        byte[] decodedBytes = Base64.decodeBase64(decryptedValue);

        byte[] decryptedBytes = cipher.doFinal(decodedBytes);

        decryptedValue = new String(decryptedBytes, _UTF8_CHARSET).substring(_SALT_LENGTH);
    }

    return decryptedValue;
}

From source file:com.centurylink.mdw.util.HmacSha1Signature.java

public static String getHMACHexdigestSignature(byte[] payloadBytes, String key)
        throws InvalidKeyException, NoSuchAlgorithmException {
    SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), ALGORITHM);
    Mac mac = Mac.getInstance(ALGORITHM);
    mac.init(keySpec);/*from w w w .  j  a v  a2s .  c o  m*/
    byte[] rawHmac = mac.doFinal(payloadBytes);
    return Hex.encodeHexString(rawHmac);
}

From source file:io.milton.http.http11.auth.HmacUtils.java

public static String calcShaHash(String data, String key) {
    String result = null;// ww w.  j a v a2s  .  c  o m
    try {
        Key signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);
        Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
        mac.init(signingKey);
        byte[] rawHmac = mac.doFinal(data.getBytes());
        result = Base64.encodeBase64URLSafeString(rawHmac);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(HMAC_SHA1_ALGORITHM, e);
    } catch (InvalidKeyException e) {
        throw new RuntimeException(HMAC_SHA1_ALGORITHM, e);
    } catch (IllegalStateException e) {
        throw new RuntimeException(HMAC_SHA1_ALGORITHM, e);
    }

    return result;
}

From source file:com.opentok.util.Crypto.java

public static String signData(String data, String key)
        throws SignatureException, NoSuchAlgorithmException, InvalidKeyException {
    SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);
    Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
    mac.init(signingKey);/*w  ww . java  2s. c om*/
    return toHexString(mac.doFinal(data.getBytes()));
}

From source file:com.amazonaws.sqs.util.AwsSignature.java

public static String calculate(String stringToSign, String secretKey) throws Exception {
    // get an hmac_sha1 key from the raw key bytes
    SecretKeySpec signingKey = new SecretKeySpec(secretKey.getBytes(), HMAC_SHA1_ALGORITHM);

    // get an hmac_sha1 Mac instance and initialize with the signing key
    Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
    mac.init(signingKey);// www  . ja  v  a 2  s .  co  m

    // compute the hmac on input data bytes
    byte[] rawHmac = mac.doFinal(stringToSign.getBytes());

    // base64-encode the hmac
    String result = new String(Base64.encodeBase64(rawHmac));
    return result;
}

From source file:Main.java

public static byte[] TriDesEncryption(byte[] byteKey, byte[] dec) {
    try {//from w ww . ja  va2  s. c  o  m
        byte[] en_key = new byte[24];
        if (byteKey.length == 16) {
            System.arraycopy(byteKey, 0, en_key, 0, 16);
            System.arraycopy(byteKey, 0, en_key, 16, 8);
        }
        SecretKeySpec key = new SecretKeySpec(en_key, "DESede");
        Cipher ecipher = Cipher.getInstance("DESede/ECB/NoPadding");
        ecipher.init(Cipher.ENCRYPT_MODE, key);

        byte[] en_b = ecipher.doFinal(dec);
        return en_b;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static byte[] generateCramMD5ClientResponse(String userName, String userPassword, byte[] challengeBytes)
        throws Exception {
    String macAlgorithm = "HmacMD5";
    Mac mac = Mac.getInstance(macAlgorithm);
    mac.init(new SecretKeySpec(userPassword.getBytes("UTF-8"), macAlgorithm));
    final byte[] messageAuthenticationCode = mac.doFinal(challengeBytes);
    String responseAsString = userName + " " + toHex(messageAuthenticationCode);
    return responseAsString.getBytes();
}

From source file:Main.java

public static String decryptData(String ciphertext, String password) throws Exception {
    int iterationCount = 100; //because polaroid
    int keyLength = 256;

    String[] fields = ciphertext.split("]");
    byte[] iv = Base64.decode(fields[0], 0);
    byte[] salt = Base64.decode(fields[1], 0);
    byte[] cipherBytes = Base64.decode(fields[2], 0);

    Log.d(TAG, "ciphertext: " + ciphertext + "\n" + "iv length is " + "\n" + iv.length);

    KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, iterationCount, keyLength);
    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
    byte[] keyBytes = keyFactory.generateSecret(keySpec).getEncoded();
    SecretKey key = new SecretKeySpec(keyBytes, "AES");

    Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    IvParameterSpec ivParams = new IvParameterSpec(iv);
    cipher.init(Cipher.DECRYPT_MODE, key, ivParams);
    byte[] plaintext = cipher.doFinal(cipherBytes);
    String plainStr = new String(plaintext, "UTF-8");

    return plainStr;
}