get Hmac Sha Signature - Android java.security

Android examples for java.security:HMAC

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Description

get Hmac Sha Signature

Demo Code

/**//w w  w  . ja  va 2 s.  co  m
 * Copyright (c) 2012 The Wiseserc. All rights reserved.
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;

public class Main{
    
    public static String getHmacSha1Signature(String value, String key)
            throws NoSuchAlgorithmException, InvalidKeyException {
        byte[] keyBytes = key.getBytes();
        SecretKeySpec signingKey = new SecretKeySpec(keyBytes, "HmacSHA1");

        Mac mac = Mac.getInstance("HmacSHA1");
        mac.init(signingKey);

        byte[] rawHmac = mac.doFinal(value.getBytes());
        return new String(Base64.encode(rawHmac));
    }
}

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