chat.dim.crypto.Digest Maven / Gradle / Ivy
/* license: https://mit-license.org
* ==============================================================================
* The MIT License (MIT)
*
* Copyright (c) 2019 Albert Moky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
* ==============================================================================
*/
package chat.dim.crypto;
import org.bouncycastle.crypto.digests.RIPEMD160Digest;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public final class Digest {
public static byte[] sha256(byte[] data) {
MessageDigest md;
try {
md = MessageDigest.getInstance("SHA-256");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
return null;
}
md.reset();
md.update(data);
return md.digest();
}
public static byte[] ripemd160(byte[] data) {
RIPEMD160Digest digest = new RIPEMD160Digest();
digest.update(data, 0, data.length);
byte[] out = new byte[20];
digest.doFinal(out, 0);
return out;
}
}