AES加密解密

1<html>
2
3<head>
4	<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.0.0/crypto-js.min.js"></script>
5	<script>
6		function getAesString(data,key,iv){//加密
7			var key  = CryptoJS.enc.Latin1.parse(key);
8			var iv   = CryptoJS.enc.Latin1.parse(iv);
9			var srcs = CryptoJS.enc.Utf8.parse(data);
10	 
11			var encrypted = CryptoJS.AES.encrypt(srcs,key,
12				{iv:iv,mode:CryptoJS.mode.CBC,padding:CryptoJS.pad.Pkcs7});
13			return encrypted;
14		}
15		function getDAesString(encrypted,key,iv){//解密
16			var key  = CryptoJS.enc.Latin1.parse(key);
17			var iv   = CryptoJS.enc.Latin1.parse(iv);
18			var decrypted = CryptoJS.AES.decrypt(encrypted,key,
19				{iv:iv,mode:CryptoJS.mode.CBC,padding:CryptoJS.pad.Pkcs7});
20			return decrypted.toString(CryptoJS.enc.Utf8);
21		}
22		function getAES(){ //加密
23			var data = 'abcde';//明文
24			var key  = 'qaz';  //密钥
25			var iv   = '123456';
26			var encrypted = getAesString(data,key,iv); //密文
27			
28			// var enstr = CryptoJS.enc.Base64.stringify(encrypted.ciphertext);
29			
30			console.log(encrypted.ciphertext.toString());
31			console.log("-----------------------");
32			
33			var back0 = CryptoJS.enc.Hex.parse(encrypted.ciphertext.toString());
34			
35			console.log(back0);
36			
37			var back1 = CryptoJS.enc.Base64.stringify(back0);
38			
39			var back = getDAesString(back1,key,iv);
40			console.log(back);
41		}
42		getAES();
43	</script>
44</head>
45<body>
46</body>
47</html>
48
49package com.hmp.common.util;
50
51import javax.crypto.Cipher;
52import javax.crypto.KeyGenerator;
53import javax.crypto.spec.SecretKeySpec;
54
55import org.apache.commons.codec.binary.Base64;
56import org.apache.commons.codec.binary.Hex;
57
58public class AesEncryptUtil {
59
60	//可配置到Constant中，并读取配置文件注入,16位,自己定义
61    private static final String KEY = "abcdefgabcdefg12";
62 
63    //参数分别代表 算法名称/加密模式/数据填充方式
64    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";
65 
66    /**
67     * 加密
68     * @param content 加密的字符串
69     * @param encryptKey key值
70     * @return
71     * @throws Exception
72     */
73    public static String encrypt(String content, String encryptKey) throws Exception {
74        KeyGenerator kgen = KeyGenerator.getInstance("AES");
75        kgen.init(128);
76        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
77        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));
78        byte[] b = cipher.doFinal(content.getBytes("utf-8"));
79        
80        String hexStr = parseByte2HexStr(b);
81        
82        // 采用base64算法进行转码,避免出现中文乱码
83        return hexStr;
84 
85    }
86 
87    /**
88     * 解密
89     * @param encryptStr 解密的字符串
90     * @param decryptKey 解密的key值
91     * @return
92     * @throws Exception
93     */
94    public static String decrypt(String encryptStr, String decryptKey) throws Exception {
95    	
96    	byte[] hexs = Hex.decodeHex(encryptStr);
97    	String str = Base64.encodeBase64String(hexs);
98    	
99        KeyGenerator kgen = KeyGenerator.getInstance("AES");
100        kgen.init(128);
101        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
102        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));
103        // 采用base64算法进行转码,避免出现中文乱码
104        byte[] encryptBytes = Base64.decodeBase64(str);
105        byte[] decryptBytes = cipher.doFinal(encryptBytes);
106        
107        return new String(decryptBytes);
108    }
109 
110    public static String encrypt(String content) throws Exception {
111        return encrypt(content, KEY);
112    }
113    public static String decrypt(String encryptStr) throws Exception {
114        return decrypt(encryptStr, KEY);
115    }
116    
117    
118    /**将二进制转换成16进制 
119     * @param buf 
120     * @return 
121     */  
122    public static String parseByte2HexStr(byte buf[]) {  
123        StringBuffer sb = new StringBuffer();  
124        for (int i = 0; i < buf.length; i++) {  
125                String hex = Integer.toHexString(buf[i] & 0xFF);  
126                if (hex.length() == 1) {  
127                        hex = '0' + hex;  
128                }  
129                sb.append(hex);  
130        }  
131        return sb.toString();  
132    } 
133    
134    /**将16进制转换为二进制 
135     * @param hexStr 
136     * @return 
137     */  
138    public static byte[] parseHexStr2Byte(String hexStr) {  
139        if (hexStr.length() < 1)  
140                return null;  
141        byte[] result = new byte[hexStr.length()/2];  
142        for (int i = 0;i< hexStr.length()/2; i++) {  
143                int high = Integer.parseInt(hexStr.substring(i*2, i*2+1), 16);  
144                int low = Integer.parseInt(hexStr.substring(i*2+1, i*2+2), 16);  
145                result[i] = (byte) (high * 16 + low);  
146        }  
147        return result;
148    }
149
150    
151    public static void main(String[] args) throws Exception {
152		
153    	String mw = AesEncryptUtil.encrypt("admin");
154    	
155    	System.out.println(mw);
156    	
157    	System.out.println(AesEncryptUtil.decrypt(mw));
158    	
159	}
160}