42 lines
1.2 KiB
Java
42 lines
1.2 KiB
Java
/*
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* HashFile.java
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*
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* Created on 2007. január 21., 17:55
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*
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* To change this template, choose Tools | Template Manager
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* and open the template in the editor.
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*/
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package tsdemo;
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import java.security.MessageDigest;
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import java.io.FileInputStream;
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/**
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*
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* @author root
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*/
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public class HashFile {
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/** Creates a new instance of HashFile */
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public HashFile() {
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}
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public static byte[] getHash(String Filename, String Algorithm) {
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try {
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MessageDigest d = MessageDigest.getInstance(Algorithm); // Get a hash handler
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FileInputStream f = new FileInputStream(Filename); // open file for hashing
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byte[] b = new byte[1];
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while ( -1 != f.read(b, 0, 1)) // feed the message digester
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d.update(b);
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f.close();
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return d.digest(); // get the final hash and return it
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} catch (Exception e) {
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System.out.println("Hashing Error " + e.getMessage());
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return null;
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}
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}
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}
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