AES加密解密

<html>

<head>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.0.0/crypto-js.min.js"></script>
	<script>
		function getAesString(data,key,iv){//加密
			var key  = CryptoJS.enc.Latin1.parse(key);
			var iv   = CryptoJS.enc.Latin1.parse(iv);
			var srcs = CryptoJS.enc.Utf8.parse(data);
	 
			var encrypted = CryptoJS.AES.encrypt(srcs,key,
				{iv:iv,mode:CryptoJS.mode.CBC,padding:CryptoJS.pad.Pkcs7});
			return encrypted;
		}
		function getDAesString(encrypted,key,iv){//解密
			var key  = CryptoJS.enc.Latin1.parse(key);
			var iv   = CryptoJS.enc.Latin1.parse(iv);
			var decrypted = CryptoJS.AES.decrypt(encrypted,key,
				{iv:iv,mode:CryptoJS.mode.CBC,padding:CryptoJS.pad.Pkcs7});
			return decrypted.toString(CryptoJS.enc.Utf8);
		}
		function getAES(){ //加密
			var data = 'abcde';//明文
			var key  = 'qaz';  //密钥
			var iv   = '123456';
			var encrypted = getAesString(data,key,iv); //密文
			
			// var enstr = CryptoJS.enc.Base64.stringify(encrypted.ciphertext);
			
			console.log(encrypted.ciphertext.toString());
			console.log("-----------------------");
			
			var back0 = CryptoJS.enc.Hex.parse(encrypted.ciphertext.toString());
			
			console.log(back0);
			
			var back1 = CryptoJS.enc.Base64.stringify(back0);
			
			var back = getDAesString(back1,key,iv);
			console.log(back);
		}
		getAES();
	</script>
</head>
<body>
</body>
</html>

package com.hmp.common.util;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.binary.Hex;

public class AesEncryptUtil {

	//可配置到Constant中，并读取配置文件注入,16位,自己定义
    private static final String KEY = "abcdefgabcdefg12";
 
    //参数分别代表 算法名称/加密模式/数据填充方式
    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";
 
    /**
     * 加密
     * @param content 加密的字符串
     * @param encryptKey key值
     * @return
     * @throws Exception
     */
    public static String encrypt(String content, String encryptKey) throws Exception {
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));
        byte[] b = cipher.doFinal(content.getBytes("utf-8"));
        
        String hexStr = parseByte2HexStr(b);
        
        // 采用base64算法进行转码,避免出现中文乱码
        return hexStr;
 
    }
 
    /**
     * 解密
     * @param encryptStr 解密的字符串
     * @param decryptKey 解密的key值
     * @return
     * @throws Exception
     */
    public static String decrypt(String encryptStr, String decryptKey) throws Exception {
    	
    	byte[] hexs = Hex.decodeHex(encryptStr);
    	String str = Base64.encodeBase64String(hexs);
    	
        KeyGenerator kgen = KeyGenerator.getInstance("AES");
        kgen.init(128);
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
        // 采用base64算法进行转码,避免出现中文乱码
        byte[] encryptBytes = Base64.decodeBase64(str);
        byte[] decryptBytes = cipher.doFinal(encryptBytes);
        
        return new String(decryptBytes);
    }
 
    public static String encrypt(String content) throws Exception {
        return encrypt(content, KEY);
    }
    public static String decrypt(String encryptStr) throws Exception {
        return decrypt(encryptStr, KEY);
    }
    
    
    /**将二进制转换成16进制 
     * @param buf 
     * @return 
     */  
    public static String parseByte2HexStr(byte buf[]) {  
        StringBuffer sb = new StringBuffer();  
        for (int i = 0; i < buf.length; i++) {  
                String hex = Integer.toHexString(buf[i] & 0xFF);  
                if (hex.length() == 1) {  
                        hex = '0' + hex;  
                }  
                sb.append(hex);  
        }  
        return sb.toString();  
    } 
    
    /**将16进制转换为二进制 
     * @param hexStr 
     * @return 
     */  
    public static byte[] parseHexStr2Byte(String hexStr) {  
        if (hexStr.length() < 1)  
                return null;  
        byte[] result = new byte[hexStr.length()/2];  
        for (int i = 0;i< hexStr.length()/2; i++) {  
                int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16);  
                int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16);  
                result[i] = (byte) (high * 16 + low);  
        }  
        return result;
    }

    
    public static void main(String[] args) throws Exception {
		
    	String mw = AesEncryptUtil.encrypt("admin");
    	
    	System.out.println(mw);
    	
    	System.out.println(AesEncryptUtil.decrypt(mw));
    	
	}
}

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