Java tutorial
/** * Copyright (c) 2015 Mark S. Kolich * http://mark.koli.ch * * 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 com.kolich.common.util.crypt; import static org.apache.commons.codec.binary.StringUtils.getBytesUtf8; import static org.apache.commons.codec.binary.StringUtils.newStringUtf8; import org.apache.commons.codec.binary.Base32; public final class Base32Utils { // Cannot be instantiated. private Base32Utils() { } /** * Encodes a UTF-8 String using the Base32 algorithm but * does not chunk the output. * @param encode * @return A UTF-8 String representation of the encoded output. */ public static final String encodeBase32(final String encode) { return newStringUtf8(encodeBase32(getBytesUtf8(encode))); } /** * Encodes binary data using the Base32 algorithm but * does not chunk the output. * @param encode * @return */ public static final byte[] encodeBase32(final byte[] encode) { return new Base32(true).encode(encode); } /** * Decodes a UTF-8 String using the Base32 algorithm. Works with * URL-safe encoded Base32 Strings too. * @param encode * @return A UTF-8 String representation of the decoded output. */ public static final String decodeBase32(final String decode) { return newStringUtf8(decodeBase32(getBytesUtf8(decode))); } /** * Decodes binary data using the Base32 algorithm but * does not chunk the output. * @param encode * @return */ public static final byte[] decodeBase32(final byte[] decode) { return new Base32(true).decode(decode); } }