java使用AES加密解密 AES-128-ECB加密

http://www.cnblogs.com/chen-lhx/p/5817161.html

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1.  
   import javax.crypto.Cipher;
2.  
   import javax.crypto.spec.SecretKeySpec;
3.  
    
4.  
   import org.apache.commons.codec.binary.Base64;
5.  
   /**
6.  
   *
7.  
   * @author Administrator
8.  
   *
9.  
   */
10.  
    public class AES {
11.  
     
12.  
    // 加密
13.  
    public static String Encrypt(String sSrc, String sKey) throws Exception {
14.  
    if (sKey == null) {
15.  
    System.out.print( "Key为空null");
16.  
    return null;
17.  
    }
18.  
    // 判断Key是否为16位
19.  
    if (sKey.length() != 16) {
20.  
    System.out.print( "Key长度不是16位");
21.  
    return null;
22.  
    }
23.  
    byte[] raw = sKey.getBytes("utf-8");
24.  
    SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
25.  
    Cipher cipher = Cipher.getInstance( "AES/ECB/PKCS5Padding");//"算法/模式/补码方式"
26.  
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
27.  
    byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
28.  
     
29.  
    return new Base64().encodeToString(encrypted);//此处使用BASE64做转码功能，同时能起到2次加密的作用。
30.  
    }
31.  
     
32.  
    // 解密
33.  
    public static String Decrypt(String sSrc, String sKey) throws Exception {
34.  
    try {
35.  
    // 判断Key是否正确
36.  
    if (sKey == null) {
37.  
    System.out.print( "Key为空null");
38.  
    return null;
39.  
    }
40.  
    // 判断Key是否为16位
41.  
    if (sKey.length() != 16) {
42.  
    System.out.print( "Key长度不是16位");
43.  
    return null;
44.  
    }
45.  
    byte[] raw = sKey.getBytes("utf-8");
46.  
    SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
47.  
    Cipher cipher = Cipher.getInstance( "AES/ECB/PKCS5Padding");
48.  
    cipher.init(Cipher.DECRYPT_MODE, skeySpec);
49.  
    byte[] encrypted1 = new Base64().decode(sSrc);//先用base64解密
50.  
    try {
51.  
    byte[] original = cipher.doFinal(encrypted1);
52.  
    String originalString = new String(original,"utf-8");
53.  
    return originalString;
54.  
    } catch (Exception e) {
55.  
    System.out.println(e.toString());
56.  
    return null;
57.  
    }
58.  
    } catch (Exception ex) {
59.  
    System.out.println(ex.toString());
60.  
    return null;
61.  
    }
62.  
    }
63.  
     
64.  
    public static void main(String[] args) throws Exception {
65.  
    /*
66.  
    * 此处使用AES-128-ECB加密模式，key需要为16位。
67.  
    */
68.  
    String cKey = "1234567890123456";
69.  
    // 需要加密的字串
70.  
    String cSrc = "www.gowhere.so";
71.  
    System.out.println(cSrc);
72.  
    // 加密
73.  
    String enString = AES.Encrypt(cSrc, cKey);
74.  
    System.out.println( "加密后的字串是：" + enString);
75.  
     
76.  
    // 解密
77.  
    String DeString = AES.Decrypt(enString, cKey);
78.  
    System.out.println( "解密后的字串是：" + DeString);
79.  
    }
80.  
    }
81.  
     
82.  
    //源代码片段来自云代码http://yuncode.net

android

 

 

1. 1.  
      package cd.server.data;
   2.  
       
   3.  
      import javax.crypto.Cipher;
   4.  
      import javax.crypto.spec.SecretKeySpec;
   5.  
       
   6.  
      import android.annotation.SuppressLint;
   7.  
      import android.util.Base64;
   8.  
       
   9.  
      // http://blog.csdn.net/hbcui1984/article/details/5201247
   10.  
       // AES加密解密工具类
   11.  
       public class AES128
   12.  
       {
   13.  
       private static final String UTF_8 = "UTF-8";
   14.  
        
   15.  
       /**
   16.  
       * 加密
   17.  
       * @param content 需要加密的内容
   18.  
       * @param password 加密密码
   19.  
       * @return
   20.  
       */
   21.  
       @SuppressLint ("TrulyRandom")
   22.  
       public static String encrypt(String key, String src)
   23.  
       {
   24.  
       try
   25.  
       {
   26.  
       if(key == null || key.length() <= 0 || src == null || src.length() <= 0) return null;
   27.  
        
   28.  
       SecretKeySpec skey = new SecretKeySpec(key.getBytes(), "AES");
   29.  
       Cipher cipher = Cipher.getInstance( "AES/ECB/PKCS5Padding");
   30.  
       byte[] byteContent = src.getBytes(UTF_8);
   31.  
       cipher.init(Cipher.ENCRYPT_MODE, skey); // 初始化
   32.  
       byte[] result = cipher.doFinal(byteContent);
   33.  
       return byte2Base64(result); // 加密
   34.  
       }
   35.  
       catch (Exception ext)
   36.  
       {
   37.  
       ext.printStackTrace();
   38.  
       }
   39.  
       return null;
   40.  
       }
   41.  
       private static String byte2Base64(byte[] encode)
   42.  
       {
   43.  
       try
   44.  
       {
   45.  
       return Base64.encodeToString(encode, Base64.NO_WRAP);
   46.  
        
   47.  
       }
   48.  
       catch (Exception ext)
   49.  
       {
   50.  
       ext.printStackTrace();
   51.  
       }
   52.  
        
   53.  
       return null;
   54.  
       }
   55.  
       }

转载于:https://www.cnblogs.com/t0000/articles/9680135.html