------------------------ JAVA 源码如下 -------------------------------------------- package com.wlt.webm.tool; import java.security.*; import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; /** * * @author 1989 * */ public class DES { public DES(String str) { setKey(str);// 生成密匙 } public DES() { } public void setKey(String key) { PASSWORD_CRYPT_KEY = key; } private String PASSWORD_CRYPT_KEY = null; private final static String DES = "DES/ECB/PKCS5Padding"; /** * * 加密 * * @param src * 数据源 * * @param key * 密钥，长度必须是8的倍数 * * @return 返回加密后的数据 * * @throws Exception */ public static byte[] encrypt(byte[] src, byte[] key) throws Exception { // DES算法要求有一个可信任的随机数源 SecureRandom sr = new SecureRandom(); // 从原始密匙数据创建DESKeySpec对象 DESKeySpec dks = new DESKeySpec(key); // 创建一个密匙工厂，然后用它把DESKeySpec转换成 // 一个SecretKey对象 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey securekey = keyFactory.generateSecret(dks); // Cipher对象实际完成加密操作 Cipher cipher = Cipher.getInstance(DES); // 用密匙初始化Cipher对象 cipher.init(Cipher.ENCRYPT_MODE, securekey, sr); // 现在，获取数据并加密 // 正式执行加密操作 return cipher.doFinal(src); } /** * * 解密 * * @param src * 数据源 * * @param key * 密钥，长度必须是8的倍数 * * @return 返回解密后的原始数据 * * @throws Exception */ public static byte[] decrypt(byte[] src, byte[] key) throws Exception { // DES算法要求有一个可信任的随机数源 SecureRandom sr = new SecureRandom(); // 从原始密匙数据创建一个DESKeySpec对象 DESKeySpec dks = new DESKeySpec(key); // 创建一个密匙工厂，然后用它把DESKeySpec对象转换成 // 一个SecretKey对象 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey securekey = keyFactory.generateSecret(dks); // Cipher对象实际完成解密操作 Cipher cipher = Cipher.getInstance(DES); // 用密匙初始化Cipher对象 cipher.init(Cipher.DECRYPT_MODE, securekey, sr); // 现在，获取数据并解密 // 正式执行解密操作 return cipher.doFinal(src); } /** * * 密码解密 * * @param data * * @return * * @throws Exception */ public String decrypt(String data) { try { return new String(decrypt(hex2byte(data.getBytes()), PASSWORD_CRYPT_KEY.getBytes())); } catch (Exception e) { } return null; } /** * * 密码加密 * * @param password * * @return * * @throws Exception */ public String getEncString(String src) { try { return byte2hex(encrypt(src.getBytes("UTF-8"), PASSWORD_CRYPT_KEY .getBytes("UTF-8"))); } catch (Exception e) { } return null; } /** * * 二行制转字符串 * * @param b * * @return */ public static String byte2hex(byte[] b) { String hs = ""; String stmp = ""; for (int n = 0; n < b.length; n++) { stmp = (java.lang.Integer.toHexString(b[n] & 0XFF)); if (stmp.length() == 1) hs = hs + "0" + stmp; else hs = hs + stmp; } return hs.toUpperCase(); } public static byte[] hex2byte(byte[] b) { if ((b.length % 2) != 0) throw new IllegalArgumentException("长度不是偶数"); byte[] b2 = new byte[b.length / 2]; for (int n = 0; n < b.length; n += 2) { String item = new String(b, n, 2); b2[n / 2] = (byte) Integer.parseInt(item, 16); } return b2; } public static void main(String[] args) { DES des = new DES(); des.setKey("12345678"); String src = "2014101619234000000002601234567820141016192340"; System.out.println("原文："+src); System.out.println("秘钥：12345678"); String enkey = des.getEncString(src); System.out.println("加密后："+enkey ); System.out.println("解密后："+des.decrypt(enkey)); } } ------------------------------------------ -运行结果如下 ---------------------------------------------- 原文：2014101619234000000002601234567820141016192340 秘钥：12345678 加密后：AC8D6A24D5E6CF377BB9A15231DB61586A3D809A3F4A2B5B96D0028878D58C89AC8D6A24D5E6CF37989F8AD4E414E6C8 解密后：2014101619234000000002601234567820141016192340 ------------------------------------------- 给我一段PHP 的源码 ------------------------------------------------------------------------
2019-09-21 09:09:41