| commit | author | age | ||
| 2a4fb8 | 1 | /* |
| U | 2 | http-realm - Authentication Extensions to jdk.httpserver |
| 3 | Copyright (C) 2021 Ulrich Hilger | |
| 4 | ||
| 5 | This program is free software: you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU Affero General Public License as | |
| 7 | published by the Free Software Foundation, either version 3 of the | |
| 8 | License, or (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU Affero General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU Affero General Public License | |
| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| 17 | */ | |
| 18 | package de.uhilger.httpserver.auth.realm; | |
| 19 | ||
| 20 | import java.nio.charset.StandardCharsets; | |
| 21 | import java.security.MessageDigest; | |
| 22 | import java.security.NoSuchAlgorithmException; | |
| 23 | ||
| 24 | /** | |
| 25 | * | |
| 26 | * @author ulrich | |
| 27 | */ | |
| 28 | public class Encoder { | |
| 29 | ||
| 30 | private static final byte[] HEX_ARRAY = "0123456789ABCDEF".getBytes(StandardCharsets.US_ASCII); | |
| 31 | ||
| 32 | public byte[] encode(String password) throws NoSuchAlgorithmException { | |
| 33 | MessageDigest md = MessageDigest.getInstance("SHA-256"); | |
| 34 | return md.digest(password.getBytes()); | |
| 35 | } | |
| 36 | ||
| 37 | public String bytesToHex(byte[] bytes) { | |
| 38 | byte[] hexChars = new byte[bytes.length * 2]; | |
| 39 | for (int j = 0; j < bytes.length; j++) { | |
| 40 | int v = bytes[j] & 0xFF; | |
| 41 | hexChars[j * 2] = HEX_ARRAY[v >>> 4]; | |
| 42 | hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F]; | |
| 43 | } | |
| 44 | return new String(hexChars, StandardCharsets.UTF_8); | |
| 45 | } | |
| 46 | } | |
