view src/ch/ethz/ssh2/crypto/digest/SHA256.java @ 308:42b15aaa7ac7
ganymed
merge
author
Carl Byington <carl@five-ten-sg.com>
date
Wed, 30 Jul 2014 14:21:50 -0700 (2014-07-30)
parents
071eccdff8ea
children
line source
+ − /*
+ − * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
+ − * Please refer to the LICENSE.txt for licensing details.
+ − */
+ − package ch.ethz.ssh2.crypto.digest;
+ −
+ − import java.security.DigestException;
+ − import java.security.MessageDigest;
+ − import java.security.NoSuchAlgorithmException;
+ −
+ − /**
+ − * @version $Id: SHA256.java 152 2014-04-28 11:02:23Z dkocher@sudo.ch $
+ − */
+ − public final class SHA256 implements Digest {
+ −
+ − private MessageDigest md;
+ −
+ − public SHA256() {
+ − try {
+ − md = MessageDigest.getInstance("SHA-256");
+ − }
+ − catch (NoSuchAlgorithmException e) {
+ − throw new IllegalArgumentException(e);
+ − }
+ − }
+ −
+ − public final int getDigestLength() {
+ − return md.getDigestLength();
+ − }
+ −
+ − public final void reset() {
+ − md.reset();
+ − }
+ −
+ − public final void update(byte b[]) {
+ − this.update(b, 0, b.length);
+ − }
+ −
+ − public final void update(byte b[], int off, int len) {
+ − md.update(b, off, len);
+ − }
+ −
+ − public final void update(byte b) {
+ − md.update(b);
+ − }
+ −
+ − public final void digest(byte[] out) throws DigestException {
+ − this.digest(out, 0);
+ − }
+ −
+ − public final void digest(byte[] out, int off) throws DigestException {
+ − md.digest(out, off, out.length);
+ − }
+ − }