Example usage for javax.crypto Mac init

Introduction

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

Prototype

public final void init(Key key) throws InvalidKeyException

Source Link

Document

Initializes this Mac object with the given key.

Usage

From source file:Main.java

static byte[] encodeHMAC(String key, byte[] message) throws NoSuchAlgorithmException, InvalidKeyException {
    SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "RAW");

    Mac mac = Mac.getInstance("HmacSHA1");
    mac.init(keySpec);
    return mac.doFinal(message);
}

From source file:Main.java

public static byte[] hmacSha1(String key, String value)
        throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException {
    String type = "HmacSHA1";
    SecretKeySpec secret = new SecretKeySpec(key.getBytes(), type);
    Mac mac = Mac.getInstance(type);
    mac.init(secret);
    return mac.doFinal(value.getBytes());
}

From source file:Main.java

public static String doSignWithSHA1(String toSign, String keyString) throws Exception {
    SecretKeySpec key = new SecretKeySpec((keyString).getBytes(UTF_8), HMAC_SHA1);
    Mac mac = Mac.getInstance(HMAC_SHA1);
    mac.init(key);
    byte[] bytes = mac.doFinal(toSign.getBytes(UTF_8));
    return Base64.encodeToString(bytes, Base64.CRLF).replace(CARRIAGE_RETURN, EMPTY_STRING);
}

From source file:com.music.util.SecurityUtils.java

/**
 * Calculates a HmacSHA1 value//w  ww . j  ava  2s  .c  o m
 *
 * @param data
 * @param key
 * @return HmacSHA1
 */
public static String hmac(String data, String key) {
    try {
        // get an hmac_sha1 key from the raw key bytes
        SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), HMAC_SHA1_ALGORITHM);
        Mac mac = Mac.getInstance(HMAC_SHA1_ALGORITHM);
        mac.init(signingKey);

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

        String result = new String(Hex.encodeHex(rawHmac));
        return result.toUpperCase();
    } catch (Exception ex) {
        throw new RuntimeException("Problem with calculating hmac", ex);
    }
}

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);
    byte[] rawHmac = mac.doFinal(payloadBytes);
    return Hex.encodeHexString(rawHmac);
}

From source file:Main.java

public static String computeHmacSha1(String value, String keyString) throws InvalidKeyException,
        IllegalStateException, UnsupportedEncodingException, NoSuchAlgorithmException {
    SecretKeySpec key = new SecretKeySpec((keyString).getBytes("UTF-8"), "HmacSHA1");
    Mac mac = Mac.getInstance("HmacSHA1");
    mac.init(key);

    byte[] bytes = mac.doFinal(value.getBytes("UTF-8"));

    return convToHex(bytes);
}

From source file:Main.java

/**
 * This method generates a byte array corresponding to the
 * signed secret using value a signing operator
 * //w  w  w . ja v a  2s  . co  m
 * @param   value   the value used to sign the key
 * @param   secretKey   the key to sign
 * @return   a byte array corresponding to the raw HMAC-SHA1 hash
 */
public static byte[] hmacSha1(byte[] value, byte[] secretKey) throws RuntimeException {
    try {
        SecretKeySpec signingKey = new SecretKeySpec(secretKey, HMAC_ALGORITHM);
        Mac mac = Mac.getInstance(HMAC_ALGORITHM);
        mac.init(signingKey);
        byte[] rawHmac = mac.doFinal(value);
        return (rawHmac);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

private static Mac getMacForPassphrase(String passphrase, byte[] salt) throws GeneralSecurityException {
    SecretKey key = getKeyFromPassphrase(passphrase, salt);
    byte[] pbkdf2 = key.getEncoded();
    SecretKeySpec hmacKey = new SecretKeySpec(pbkdf2, "HmacSHA1");
    Mac hmac = Mac.getInstance("HmacSHA1");
    hmac.init(hmacKey);

    return hmac;//from w  w  w . jav a 2 s  .com
}

From source file:Main.java

private static byte[] sign(String keyString, byte[] message) throws GeneralSecurityException {
    byte[] keyBytes = utf8(keyString);

    SecretKey key = new SecretKeySpec(keyBytes, MAC_NAME);
    Mac mac = Mac.getInstance(MAC_NAME);
    mac.init(key);

    return mac.doFinal(message);
}

From source file:Main.java

private static Mac getMacForPassphrase(String passphrase, byte[] salt, int iterations)
        throws GeneralSecurityException {
    SecretKey key = getKeyFromPassphrase(passphrase, salt, iterations);
    byte[] pbkdf2 = key.getEncoded();
    SecretKeySpec hmacKey = new SecretKeySpec(pbkdf2, "HmacSHA1");
    Mac hmac = Mac.getInstance("HmacSHA1");
    hmac.init(hmacKey);

    return hmac;/*from  w w w .  ja v  a2s.c o m*/
}