Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.
  * The ASF licenses this file to You under the Apache License, Version 2.0
  * (the "License"); you may not use this file except in compliance with
  * the License.  You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.apache.catalina.util;

Encode an MD5 digest into a String.

The 128 bit MD5 hash is converted into a 32 character long String. Each character of the String is the hexadecimal representation of 4 bits of the digest.

Remy Maucherat
$Revision: 515 $ $Date: 2008-03-17 22:02:23 +0100 (Mon, 17 Mar 2008) $
public final class MD5Encoder {
    // ----------------------------------------------------- Instance Variables
    private static final char[] hexadecimal =
    // --------------------------------------------------------- Public Methods

Encodes the 128 bit (16 bytes) MD5 into a 32 character String.

binaryData Array containing the digest
Encoded MD5, or null if encoding failed
    public static String encodebyte[] binaryData ) {
        if (binaryData.length != 16)
            return null;
        char[] buffer = new char[32];
        for (int i=0; i<16; i++) {
            int low = (int) (binaryData[i] & 0x0f);
            int high = (int) ((binaryData[i] & 0xf0) >> 4);
            buffer[i*2] = [high];
            buffer[i*2 + 1] = [low];
        return new String(buffer);
New to GrepCode? Check out our FAQ X