package com.hx.util;
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import javax.crypto.Cipher;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.SecretKeySpec;
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import org.apache.commons.codec.binary.Base64;
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/**
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* AES加解密工具
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* 使用该类,需要行替换local_policy.jar及us_export_policy.jar
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* @author ChenJiaHe
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*
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*/
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public class AesUtil {
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/**16位加密秘钥*/
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public static final String SECRET = "huoXiong16816888";
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/**
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* AES加密
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*
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* @param str
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* 需要加密的明文
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* @param secret
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* 秘钥
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* @return 加密后的密文(base64编码字符串)
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*/
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public static String aesEncryp(String str, String secret) {
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if (null != str) {
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byte[] bytes = null;
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try {
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Base64 base64 = new Base64();
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String ALGORITHM = "AES";
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SecretKey deskey = new SecretKeySpec(secret.getBytes("UTF-8"), ALGORITHM);// 生成密钥
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Cipher c;
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c = Cipher.getInstance(ALGORITHM);
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c.init(Cipher.ENCRYPT_MODE, deskey);
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bytes = c.doFinal(str.getBytes("UTF-8"));
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if (bytes != null) {
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return new String(base64.encode(bytes));
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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return null;
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}
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/**
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* AES解密
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*
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* @param str
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* 需要解密的秘文
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* @param secret
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* 秘钥
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* @return 解密后的明文
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*/
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public static String aesDecryp(String str, String secret) {
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try {
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Base64 base64 = new Base64();
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String ALGORITHM = "AES";
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SecretKey deskey = new SecretKeySpec(secret.getBytes("UTF-8"), ALGORITHM);// 生成密钥
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Cipher c = Cipher.getInstance(ALGORITHM);
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c.init(Cipher.DECRYPT_MODE, deskey);
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return new String(c.doFinal(base64.decode(str.getBytes("UTF-8"))), "UTF-8");
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* AES加密(固定秘钥)
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*
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* @param str 需要加密的明文
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* @return 加密后的密文(base64编码字符串)
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*/
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public static String aesEncryp(String str) {
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String secret = SECRET;
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if (null != str) {
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byte[] bytes = null;
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try {
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Base64 base64 = new Base64();
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String ALGORITHM = "AES";
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SecretKey deskey = new SecretKeySpec(secret.getBytes("UTF-8"), ALGORITHM);// 生成密钥
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Cipher c;
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c = Cipher.getInstance(ALGORITHM);
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c.init(Cipher.ENCRYPT_MODE, deskey);
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bytes = c.doFinal(str.getBytes("UTF-8"));
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if (bytes != null) {
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return new String(base64.encode(bytes));
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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return null;
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}
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/**
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* AES解密(固定秘钥)
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*
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* @param str 需要解密的秘文
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* @return 解密后的明文
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*/
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public static String aesDecryp(String str) {
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String secret = SECRET;
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try {
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Base64 base64 = new Base64();
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String ALGORITHM = "AES";
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SecretKey deskey = new SecretKeySpec(secret.getBytes("UTF-8"), ALGORITHM);// 生成密钥
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Cipher c = Cipher.getInstance(ALGORITHM);
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c.init(Cipher.DECRYPT_MODE, deskey);
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return new String(c.doFinal(base64.decode(str.getBytes("UTF-8"))), "UTF-8");
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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}
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