/*
* Copyright (c) 2012, Eric Coolman, 1815750 Ontario Inc. and/or its
* affiliates. All rights reserved.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. 1815750 Ontario Inc designates
* this * particular file as subject to the "Classpath" exception as provided
* in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact 1815750 Ontario Inc. through http://www.coolman.ca/ if you
* need additional information or have any questions.
*/
package ca.coolman.auth.oauth1;
import org.bouncycastle.crypto.digests.SHA1Digest;
import org.bouncycastle.crypto.macs.HMac;
import org.bouncycastle.crypto.params.KeyParameter;
/**
*
* @author Eric Coolman
*
*/
public class HmacSha1 extends SigningImplementation {
public final static String ID = "HMAC-SHA1";
public String getId() {
return ID;
}
/*
* (non-Javadoc)
*
* @see ca.coolman.auth.oauth1.OAuthSigner#createSignature(java.lang.String,
* java.lang.String)
*/
protected byte[] createSignature(byte[] key, byte[] data) {
SHA1Digest digest = new SHA1Digest();
HMac mac = new HMac(digest);
mac.init(new KeyParameter(key));
mac.update(data, 0, data.length);
byte[] b = new byte[digest.getDigestSize()];
mac.doFinal(b, 0);
return b;
}
}