Java加密解密工具类

package com.sjzx.common.util;import java.lang.reflect.Method;import java.security.Key;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;import java.security.SecureRandom;import javax.crypto.Cipher;import javax.crypto.KeyGenerator;import javax.crypto.SecretKey;import javax.crypto.SecretKeyFactory;import javax.crypto.spec.DESedeKeySpec;import javax.crypto.spec.IvParameterSpec;import javax.crypto.spec.SecretKeySpec;/** * Java加密解密工具.3DES SHA1 MD5 BASE64编码 AES加密 Title: EnDecryptUtil.java * Description: *  * @author xwp * @date 2017年4月10日下午1:20:19 * @version 1.0 */public class EnDecryptUtil {// 无需创建对象private EnDecryptUtil() {}public static void main(String[] args) {//byte[] arr1 = new byte[] { 1, 2, 3, 4, 5, 6, 7, 22 };//System.out.println("SHA1 加密 ： " + SHA1Bit(arr1));//System.out.println("SHA1 解密 ： " + SHA1("arr1"));//System.out.println("MD5 加密 ： " + MD5Bit(arr1));//System.out.println("MD5 加密 ： " + MD5("arr1"));// 54f04b52a75382a157f69457810c41bd//System.out.println("BASE64 加密 ： " + encodeBASE64("arr1"));//System.out.println("BASE64 解密 ： " + decodeBASE64(encodeBASE64("arr1")));//System.out.println("3DES 加密 ： " + d3esEncode("arr1"));//System.out.println("d3esDecode(decodeBASE64(encodeBASE64(d3esEncode('arr1')))) = "//+ d3esDecode(decodeBASE64(encodeBASE64(d3esEncode("arr1")))));//System.out.println("3DES 解密 ： " + d3esDecode(d3esEncode("arr1")));//System.out.println("AES 加密 ： " + encryptBitAES(arr1, "arr1"));//System.out.println("AES 解密 ： " + decryptBitAES(encryptBitAES(arr1, "arr1"), "arr1"));String password = EnDecryptUtil.encodeBASE64(EnDecryptUtil.d3esEncode("111111"));System.out.println(password);}/** * SHA1加密Bit数据 *  * @param source *            byte数组 * @return 加密后的byte数组 */public static byte[] SHA1Bit(byte[] source) {try {MessageDigest sha1Digest = MessageDigest.getInstance("SHA-1");sha1Digest.update(source);byte targetDigest[] = sha1Digest.digest();return targetDigest;} catch (NoSuchAlgorithmException e) {throw new RuntimeException(e);}}/** * SHA1加密字符串数据 *  * @param source *            要加密的字符串 * @return 加密后的字符串 */public static String SHA1(String source) {return byte2HexStr(SHA1Bit(source.getBytes()));}/** * MD5加密Bit数据 *  * @param source *            byte数组 * @return 加密后的byte数组 */public static byte[] MD5Bit(byte[] source) {try {// 获得MD5摘要算法的 MessageDigest对象MessageDigest md5Digest = MessageDigest.getInstance("MD5");// 使用指定的字节更新摘要md5Digest.update(source);// 获得密文return md5Digest.digest();} catch (NoSuchAlgorithmException e) {throw new RuntimeException(e);}}/** * MD5加密字符串,32位长 *  * @param source *            要加密的内容 * @return 加密后的内容 */public static String MD5(String source) {return byte2HexStr(MD5Bit(source.getBytes()));}/** * BASE64编码 *  * @param source *            要编码的字符串 * @return 编码过的字符串 */public static String encodeBASE64(String source) {Class<?> clazz = null;Method encodeMethod = null;try {// 优先使用第三方库clazz = Class.forName("org.apache.commons.codec.binary.Base64");encodeMethod = clazz.getMethod("encodeBase64", byte[].class);System.out.println("encodeBASE64-->" + clazz);System.out.println("encodeMethod-->" + encodeMethod);// 反射方法 静态方法执行无需对象return new String((byte[]) encodeMethod.invoke(null, source.getBytes()));} catch (ClassNotFoundException e) {String vm = System.getProperty("java.vm.name");System.out.println(vm);try {if ("Dalvik".equals(vm)) {// Androidclazz = Class.forName("android.util.Base64");// byte[] Base64.encode(byte[] input,int flags)encodeMethod = clazz.getMethod("encode", byte[].class, int.class);System.out.println("encodeBASE64-->" + clazz);System.out.println("encodeMethod-->" + encodeMethod);return new String((byte[]) encodeMethod.invoke(null, source.getBytes(), 0));} else {// JavaSE/JavaEEclazz = Class.forName("sun.misc.BASE64Encoder");encodeMethod = clazz.getMethod("encode", byte[].class);System.out.println("encodeBASE64-->" + clazz);System.out.println("encodeMethod-->" + encodeMethod);return (String) encodeMethod.invoke(clazz.newInstance(), source.getBytes());}} catch (ClassNotFoundException e1) {return null;} catch (Exception e1) {return null;}} catch (Exception e) {return null;}}/** * BASE64解码 *  * @param encodeSource *            编码过的字符串 * @return 编码前的字符串 */public static String decodeBASE64(String encodeSource) {Class<?> clazz = null;Method decodeMethod = null;try {// 优先使用第三方库clazz = Class.forName("org.apache.commons.codec.binary.Base64");decodeMethod = clazz.getMethod("decodeBase64", byte[].class);System.out.println("decodeBASE64-->" + clazz);System.out.println("decodeMethod-->" + decodeMethod);// 反射方法 静态方法执行无需对象return new String((byte[]) decodeMethod.invoke(null, encodeSource.getBytes()));} catch (ClassNotFoundException e) {String vm = System.getProperty("java.vm.name");System.out.println(vm);try {if ("Dalvik".equals(vm)) {// Androidclazz = Class.forName("android.util.Base64");// byte[] Base64.decode(byte[] input, int flags)decodeMethod = clazz.getMethod("decode", byte[].class, int.class);System.out.println("decodeBASE64-->" + clazz);System.out.println("decodeMethod-->" + decodeMethod);return new String((byte[]) decodeMethod.invoke(null, encodeSource.getBytes(), 0));} else { // JavaSE/JavaEEclazz = Class.forName("sun.misc.BASE64Decoder");decodeMethod = clazz.getMethod("decodeBuffer", String.class);System.out.println("decodeBASE64-->" + clazz);System.out.println("decodeMethod-->" + decodeMethod);return new String((byte[]) decodeMethod.invoke(clazz.newInstance(), encodeSource));}} catch (ClassNotFoundException e1) {return null;} catch (Exception e1) {return null;}} catch (Exception e) {return null;}}/** * AES加密 *  * @param content *            待加密的内容 * @param password *            加密密码 * @return */public static byte[] encryptBitAES(byte[] content, String password) {try {Cipher encryptCipher = Cipher.getInstance("AES/ECB/PKCS5Padding");// 创建密码器encryptCipher.init(Cipher.ENCRYPT_MODE, getKey(password));// 初始化byte[] result = encryptCipher.doFinal(content);return result; // 加密} catch (Exception e) {throw new RuntimeException(e);}// return null;}/** * AES解密 *  * @param content *            待解密内容 * @param password *            解密密钥 * @return */public static byte[] decryptBitAES(byte[] content, String password) {try {Cipher decryptCipher = Cipher.getInstance("AES/ECB/PKCS5Padding");// 创建密码器decryptCipher.init(Cipher.DECRYPT_MODE, getKey(password));// 初始化byte[] result = decryptCipher.doFinal(content);return result; // 加密结果} catch (Exception e) {throw new RuntimeException(e);}// return null;}/** * AES字符串加密 *  * @param content *            待加密的内容 * @param password *            加密密码 * @return */public static String encryptAES(String content, String password) {return byte2HexStr(encryptBitAES(content.getBytes(), password));}/** * AES字符串解密 *  * @param content *            待解密内容 * @param password *            解密密钥 * @return */public static String decryptAES(String content, String password) {return new String(decryptBitAES(hexStr2Bytes(content), password));}/** * 从指定字符串生成密钥 *  * @param password *            构成该秘钥的字符串 * @return 生成的密钥 * @throws NoSuchAlgorithmException */private static Key getKey(String password) throws NoSuchAlgorithmException {SecureRandom secureRandom = new SecureRandom(password.getBytes());// 生成KEYKeyGenerator kgen = KeyGenerator.getInstance("AES");kgen.init(128, secureRandom);SecretKey secretKey = kgen.generateKey();byte[] enCodeFormat = secretKey.getEncoded();// 转换KEYSecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");return key;}/** * 将byte数组转换为表示16进制值的字符串. 如：byte[]{8,18}转换为：0812 和 byte[] * hexStr2Bytes(String strIn) 互为可逆的转换过程. *  * @param bytes *            需要转换的byte数组 * @return 转换后的字符串 */public static String byte2HexStr(byte[] bytes) {int bytesLen = bytes.length;// 每个byte用两个字符才能表示，所以字符串的长度是数组长度的两倍StringBuffer hexString = new StringBuffer(bytesLen * 2);for (int i = 0; i < bytesLen; i++) {// 将每个字节与0xFF进行与运算，然后转化为10进制，然后借助于Integer再转化为16进制String hex = Integer.toHexString(bytes[i] & 0xFF);if (hex.length() < 2) {hexString.append(0);// 如果为1位 前面补个0}hexString.append(hex);}return hexString.toString();}/** * 将表示16进制值的字符串转换为byte数组, 和 String byte2HexStr(byte[] bytes) 互为可逆的转换过程. *  * @param bytes * @return 转换后的byte数组 */public static byte[] hexStr2Bytes(String strIn) {byte[] arrB = strIn.getBytes();int iLen = arrB.length;// 两个字符表示一个字节，所以字节数组长度是字符串长度除以2byte[] arrOut = new byte[iLen / 2];for (int i = 0; i < iLen; i = i + 2) {String strTmp = new String(arrB, i, 2);arrOut[i / 2] = (byte) Integer.parseInt(strTmp, 16);}return arrOut;}// 密钥private final static String secretKey = "liuyunqiang@lx100$#365#$";// 向量private final static String iv = "01234567";// 加解密统一使用的编码方式private final static String encoding = "utf-8";/** * 3DES加密 *  * @param plainText *            普通文本 * @return * @throws Exception */public static String d3esEncode(String plainText) {Key deskey = null;byte[] encryptData = null;try {DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");deskey = keyfactory.generateSecret(spec);Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");IvParameterSpec ips = new IvParameterSpec(iv.getBytes());cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);encryptData = cipher.doFinal(plainText.getBytes(encoding));} catch (Exception e) {e.printStackTrace();}return Base64.encode(encryptData);}/** * 3DES解密 *  * @param encryptText *            加密文本 * @return * @throws Exception */public static String d3esDecode(String encryptText) {Key deskey = null;byte[] decryptData = null;String result = "";if (null != encryptText && !"".equals(encryptText)) {try {DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");deskey = keyfactory.generateSecret(spec);Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");IvParameterSpec ips = new IvParameterSpec(iv.getBytes());cipher.init(Cipher.DECRYPT_MODE, deskey, ips);decryptData = cipher.doFinal(Base64.decode(encryptText));result = new String(decryptData, encoding);} catch (Exception e) {e.printStackTrace();}}return result;}}