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MoparScape
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Code Issues Releases Wiki Activity

Fixed Hasher.

This commit is contained in:
Travis Burtrum 2012-03-18 00:23:06 -04:00 committed by moparisthebest
parent 955ad048c2
commit 9ed343364d
1 changed files with 15 additions and 3 deletions
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18
src/org/moparscape/iface/Hasher.java
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@ -20,6 +20,7 @@
package org.moparscape.iface;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
@ -37,13 +38,13 @@ public class Hasher {
/**
* You can specify whatever algorithm that Java supports to this, and if it isn't supported it will first
* try to use SHA-1 and then MD5 before showing a warning and reverting to not hashing anything.
*
* <p/>
* null as the algorithm has a special value meaning you don't want hashString to actually hash anything.
*
* @param algorithm
*/
public Hasher(String algorithm) {
if(algorithm == null || algorithm.equalsIgnoreCase("none"))
if (algorithm == null || algorithm.equalsIgnoreCase("none"))
return;
try {
md = MessageDigest.getInstance(algorithm);
@ -74,8 +75,19 @@ public class Hasher {
return toHash;
md.reset();
md.update(toHash.getBytes());
String ret = new java.math.BigInteger(1, md.digest()).toString(16);
//String ret = new java.math.BigInteger(1, md.digest()).toString(16);
String ret = toHex(md.digest());
md.reset();
return ret;
}
private String toHex(byte[] bytes) {
// change below to lower or uppercase X to control case of output
return String.format("%0" + (bytes.length << 1) + "x", new BigInteger(1, bytes));
}
public static void main(String[] args){
System.out.printf("'%s' hash of '%s': '%s'\n", args[0], args[1], new Hasher(args[0]).hashString(args[1]));
}
}