Example usage for javax.crypto Mac doFinal

Introduction

In this page you can find the example usage for javax.crypto Mac doFinal.

Prototype

public final byte[] doFinal(byte[] input) throws IllegalStateException

Source Link

Document

Processes the given array of bytes and finishes the MAC operation.

Usage

From source file:org.fs.ghanaian.util.StringUtility.java

public static String sha256(String data, String key)
        throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException {
    byte[] hmacValue = null;
    Mac mac = getMac(key, KEY_HASH_SHA256);
    hmacValue = mac.doFinal(data.getBytes(KEY_ENCODING));
    return new String(Base64.encodeToString(hmacValue, 0));
}

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);/*from www.  jav  a  2 s .com*/
    return toHexString(mac.doFinal(data.getBytes()));
}

From source file:Main.java

/**
 * Generate the mac based on HMAC_ALGORITHM
 *
 * @param integrityKey The key used for hmac
 * @param byteCipherText the cipher text
 * @return A byte array of the HMAC for the given key & ciphertext
 * @throws NoSuchAlgorithmException/*from  w w  w  .j  ava2  s .  co  m*/
 * @throws InvalidKeyException
 */
public static byte[] generateMac(byte[] byteCipherText, SecretKey integrityKey)
        throws NoSuchAlgorithmException, InvalidKeyException {
    //Now compute the mac for later integrity checking
    Mac sha256_HMAC = Mac.getInstance(HMAC_ALGORITHM);
    sha256_HMAC.init(integrityKey);
    return sha256_HMAC.doFinal(byteCipherText);
}

From source file:org.fs.ghanaian.util.StringUtility.java

public static String sha1(String s, String keyString)
        throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException {
    Mac mac = getMac(keyString, KEY_HASH_SHA1);
    byte[] bytes = mac.doFinal(s.getBytes("UTF-8"));
    return new String(Base64.encodeToString(bytes, 0));
}

From source file:com.messagemedia.restapi.client.v1.internal.http.interceptors.HMACUtils.java

/**
 * This method encrypts data with secret using HmacSHA1. The strings are converted to bytes using the UTF-8 encoding.
 *
 * @param secret - the secret which is being used
 * @param data   - the data which is encrypted
 * @return the base64 encoded result// w w w.  j a v  a  2s .  c  o  m
 */
static String sha1(String secret, String data) {
    try {
        SecretKeySpec signingKey = new SecretKeySpec(secret.getBytes("UTF-8"), HMAC_SHA1);
        Mac mac = Mac.getInstance(HMAC_SHA1);
        mac.init(signingKey);
        byte[] rawHmac = mac.doFinal(data.getBytes("UTF-8"));
        return new String(Base64.encodeBase64(rawHmac), "UTF-8");
    } catch (GeneralSecurityException e) {
        throw new RuntimeException("Failed to encrypt data", e);
    } catch (UnsupportedEncodingException e) {
        throw new RuntimeException("Can not find the UTF-8 charset", e);
    }
}

From source file:Main.java

public static int generate(byte[] key, long t, int digits) {
    int r = 0;/*  w  w  w . j av  a2 s  . c om*/
    try {
        t /= 30;
        byte[] data = new byte[8];
        long value = t;
        for (int i = 8; i-- > 0; value >>>= 8) {
            data[i] = (byte) value;
        }

        SecretKeySpec signKey = new SecretKeySpec(key, SHA1);
        Mac mac = Mac.getInstance(SHA1);
        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 %= Math.pow(10, digits);

        r = (int) truncatedHash;
    }

    catch (Exception e) {
    }

    return r;
}

From source file:com.zimbra.cs.account.TokenUtil.java

public static String getHmac(String data, byte[] key) {
    try {/*from   w w  w.  ja v  a  2s. com*/
        ByteKey bk = new ByteKey(key);
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(bk);
        return new String(Hex.encodeHex(mac.doFinal(data.getBytes())));
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("fatal error", e);
    } catch (InvalidKeyException e) {
        throw new RuntimeException("fatal error", e);
    }
}

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

public static String calcShaHash(String data, String key) {
    String result = null;//  www . j  a v  a  2 s.  c om
    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.zimbra.cs.account.PreAuthKey.java

private static String getHmac(String data, byte[] key) {
    try {/*w  w w .  j  a va 2s  .  c  o  m*/
        ByteKey bk = new ByteKey(key);
        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(bk);
        return new String(Hex.encodeHex(mac.doFinal(data.getBytes())));
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("fatal error", e);
    } catch (InvalidKeyException e) {
        throw new RuntimeException("fatal error", e);
    }
}

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 .j  ava 2  s.  co 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;
}