package richinfo.attendance.util;import java.math.BigInteger;import java.security.NoSuchAlgorithmException;import java.security.SecureRandom;import javax.crypto.Cipher;import javax.crypto.KeyGenerator;import javax.crypto.spec.SecretKeySpec;import org.apache.commons.codec.binary.Base64;import org.apache.log4j.Logger;import richinfo.tools.common.AssertUtil;public class AESEncryptUtil { private static Logger logger = Logger.getLogger(AESEncryptUtil.class); public static final String ENCODING_AES_KEY = AttendanceConfig.getInstance() .getProperty("attend.ENCODING_AES_KEY", "3aa1ec5c463be2d40b0e696927fe7ca33931f2c2zh7"); //正式线:"3aa1ec5c463be2d40b0e696927fe7ca33931f2c2zh7"; //测试线 "16e40d28631333dcaff078aa7c13a91c8762fca34ik"; /** * 将byte[]转为各种进制的字符串 * @param bytes byte[] * @param radix 可以转换进制的范围,从Character.MIN_RADIX到Character.MAX_RADIX,超出范围后变为10进制 * @return 转换后的字符串 */ public static String binary(byte[] bytes, int radix){ return new BigInteger(1, bytes).toString(radix);// 这里的1代表正数 } /** * base 64 encode * @param bytes 待编码的byte[] * @return 编码后的base 64 code */ public static String base64Encode(byte[] bytes){ return Base64.encodeBase64String(bytes); } /** * base 64 decode * @param base64Code 待解码的base 64 code * @return 解码后的byte[] * @throws Exception */ public static byte[] base64Decode(String base64Code) throws Exception{ return AssertUtil.isEmpty(base64Code) ? null : Base64.decodeBase64(base64Code); } /** * AES加密 * @param content 待加密的内容 * @param encryptKey 加密密钥 * @return 加密后的byte[] * @throws Exception */ public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception { KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgenInit(kgen, encryptKey.getBytes()); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES")); return cipher.doFinal(content.getBytes("utf-8")); } public static byte[] aesEncryptToBytes(String content, byte[] encryptKey) throws Exception { KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgenInit(kgen, encryptKey); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES")); return cipher.doFinal(content.getBytes("utf-8")); } /** * AES加密为base 64 code * @param content 待加密的内容 * @param encryptKey 加密密钥 * @return 加密后的base 64 code * @throws Exception */ public static String aesEncrypt(String content, String encryptKey) throws Exception { return base64Encode(aesEncryptToBytes(content, encryptKey)); } public static String aesEncrypt(String content, byte[] encryptKey) throws Exception { return base64Encode(aesEncryptToBytes(content, encryptKey)); } /** * AES解密 * @param encryptBytes 待解密的byte[] * @param decryptKey 解密密钥 * @return 解密后的String * @throws Exception */ public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception { KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgenInit(kgen, decryptKey.getBytes()); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES")); byte[] decryptBytes = cipher.doFinal(encryptBytes); return new String(decryptBytes,"utf-8"); } public static String aesDecryptByBytes(byte[] encryptBytes, byte[] decryptKey) throws Exception { KeyGenerator kgen = KeyGenerator.getInstance("AES"); kgenInit(kgen, decryptKey); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(kgen.generateKey().getEncoded(), "AES")); byte[] decryptBytes = cipher.doFinal(encryptBytes); return new String(decryptBytes,"utf-8"); } /** * 将base 64 code AES解密 * @param encryptStr 待解密的base 64 code * @param decryptKey 解密密钥 * @return 解密后的string * @throws Exception */ public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception { return AssertUtil.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey); } public static String aesDecrypt(String encryptStr, byte[] decryptKey) throws Exception { return AssertUtil.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey); } public static byte[] getAESKey(String encodingAESKey){ byte[] array = Base64.decodeBase64(encodingAESKey+"="); return array; } /**防止在linux下随机生成key * @throws NoSuchAlgorithmException */ public static void kgenInit(KeyGenerator kgen, byte[] bytes) throws NoSuchAlgorithmException{ //1.防止linux下 随机生成key SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG"); secureRandom.setSeed(bytes); //2.根据密钥初始化密钥生成器 kgen.init(128, secureRandom); } /** * 生成返回结果 * @param message 消息体的内容 * @return */// public static AddressBookMessage getRes(String message){// AddressBookMessage abm = null;// try {// abm = new AddressBookMessage();// String timeStamp = SignatureUtil.getTimeStamp();// String nonce = SignatureUtil.getRandomStr();// abm.setTimeStamp(timeStamp);// abm.setNonce(nonce);// abm.setMsg_signature(SignatureUtil.createSignature(timeStamp, nonce));// abm.setEncrypt(AESEncryptUtil.aesEncrypt(message, // AESEncryptUtil.getAESKey(AESEncryptUtil.ENCODING_AES_KEY)));// } catch (Exception e) {// LOGGER.info("生成接口结果错误:"+e.getMessage());// e.printStackTrace();// }// return abm;// } public static void main(String[] args) throws Exception { String content = "success"; System.out.println("raw string:" + content); String encrypt = aesEncrypt(content, getAESKey(ENCODING_AES_KEY)); System.out.println("encrypt string:" + encrypt); String decrypt = aesDecrypt(encrypt, getAESKey(ENCODING_AES_KEY)); System.out.println("decrypt string:" + decrypt); // String ss = "PqOFUQcp/8iJJ44x42Hgaw==";// String dd = aesDecrypt(ss, getAESKey(ENCODING_AES_KEY));// System.out.println(dd); } }