How to Hash String using SHA-1 with key?

The time I used to develop applications on iPhone I was converting String to SHA1 with two combination:

• Data
• Key

Now I am developing an Android application and I did not any example for how to calculate SHA1 With key.

I am greatly appreciative of any guidance or help.

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[The code that I currently use]

private void convertStringToSH开发者_如何学JAVAA1()
{
        String sTimeStamp  = new SimpleDateFormat("MM/dd/yyyy HH:MM:SS").format(new java.util.Date());
        String sStringToHash = String.format("%1$s\n%2$s", "Username",sTimeStamp);

        MessageDigest cript = MessageDigest.getInstance("SHA-1");
        cript.reset();

        cript.update(sStringToHash.getBytes("utf-8"));
        sStringToHash = new BigInteger(1, cript.digest()).toString(16);
}

---

Try something like that:

private String sha1(String s, String keyString) throws UnsupportedEncodingException, NoSuchAlgorithmException, InvalidKeyException {

SecretKeySpec key = new SecretKeySpec((keyString).getBytes("UTF-8"), "HmacSHA1");
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(key);

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

return new String( Base64.encodeBase64(bytes));

}

SecretKeySpec docs.

---

Another solution would be using apache commons codec library:

@Grapes(
    @Grab(group='commons-codec', module='commons-codec', version='1.10')
)

import org.apache.commons.codec.digest.HmacUtils

HmacUtils.hmacSha1Hex(key.bytes, message.bytes)