1 /* 2 * Copyright (C) 2009 Google Inc. All rights reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.polo.encoding; 18 19 import com.google.polo.pairing.PoloUtil; 20 21 /** 22 * A {@link SecretEncoder} for the hexadecimal secret encoding scheme. 23 */ 24 public class HexadecimalEncoder implements SecretEncoder { 25 26 public static final int SYMBOLS_PER_BYTE = 2; 27 decodeToBytes(String encodedString)28 public byte[] decodeToBytes(String encodedString) { 29 return PoloUtil.hexStringToBytes(encodedString); 30 } 31 encodeToString(byte[] secretBytes)32 public String encodeToString(byte[] secretBytes) { 33 return PoloUtil.bytesToHexString(secretBytes).toLowerCase(); 34 } 35 symbolsPerByte()36 public int symbolsPerByte() { 37 return SYMBOLS_PER_BYTE; 38 } 39 40 } 41