1 import android.text.TextUtils;
 2 import android.util.Base64;
 3 import android.util.Log;
 4 
 5 import javax.crypto.Cipher;
 6 import javax.crypto.spec.IvParameterSpec;
 7 import javax.crypto.spec.SecretKeySpec;
 8 
 9 public class AESCBCUtils {
10     private static final String TAG = "AESCBCUtils";
11 
12     // CBC(Cipher Block Chaining, 加密快链)模式，PKCS5Padding补码方式
13     // AES是加密方式 CBC是工作模式 PKCS5Padding是填充模式
14     /**
15      * 加解密算法/工作模式/填充方式
16      */
17     private static final String CBC_PKCS5_PADDING = "AES/CBC/PKCS5Padding";
18     // AES 加密
19     private static final String AES = "AES";
20     
21     // 密钥偏移量
22     //private static final String mstrIvParameter = "1234567890123456";
23     /* key必须为16位，可更改为自己的key */
24     //String mstrTestKey = "1234567890123456";
25 
26     // 加密
27     /**
28      * AES 加密
29      *
30      * @param strKey            加密密钥
31      * @param strClearText      待加密内容
32      * @param mstrIvParameter   密钥偏移量
33      * @return 返回Base64转码后的加密数据
34      */
35     public static String encrypt_AES(String strKey, String strClearText, String mstrIvParameter){
36 
37         try {
38             byte[] raw = strKey.getBytes();
39             // 创建AES密钥
40             SecretKeySpec skeySpec = new SecretKeySpec(raw, AES);
41             // 创建密码器
42             Cipher cipher = Cipher.getInstance(CBC_PKCS5_PADDING);
43             // 创建偏移量
44             IvParameterSpec iv = new IvParameterSpec(mstrIvParameter.getBytes());
45             // 初始化加密器
46             cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
47             // 执行加密操作
48             byte[] cipherText = cipher.doFinal(strClearText.getBytes());
49             //Log.d(TAG, "encrypt result(not BASE64): " + cipherText.toString());
50             String strBase64Content = Base64.encodeToString(cipherText, Base64.DEFAULT); // encode it by BASE64 again
51             //Log.d(TAG, "encrypt result(BASE64): " + strBase64Content);
52             strBase64Content = strBase64Content.replaceAll(System.getProperty("line.separator"), "");
53 
54             return strBase64Content;
55         } catch (Exception e) {
56             e.printStackTrace();
57         }
58 
59         return null;
60     }
61 
62     // 解密
63     /**
64      * AES 解密
65      *
66      * @param strKey            解密密钥
67      * @param strCipherText      待解密内容
68      * @param mstrIvParameter   偏移量
69      * @return 返回Base64转码后的加密数据
70      */
71     public static String decrypt(String strKey, String strCipherText, String mstrIvParameter) throws Exception {
72 
73         try {
74             byte[] raw = strKey.getBytes("ASCII");
75             // 创建AES秘钥
76             SecretKeySpec skeySpec = new SecretKeySpec(raw, AES);
77             // 创建密码器
78             Cipher cipher = Cipher.getInstance(CBC_PKCS5_PADDING);
79             // 创建偏移量
80             IvParameterSpec iv = new IvParameterSpec(mstrIvParameter.getBytes());
81             // 初始化解密器
82             cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
83             // 执行解密操作
84             byte[] cipherText = Base64.decode(strCipherText, Base64.DEFAULT); // decode by BASE64 first
85             //Log.d(TAG, "BASE64 decode result(): " + cipherText.toString());
86             byte[] clearText = cipher.doFinal(cipherText);
87             String strClearText = new String(clearText);
88             //Log.d(TAG, "decrypt result: " + strClearText);
89 
90             return strClearText;
91         } catch (Exception e) {
92             e.printStackTrace();
93         }
94 
95         return null;
96     }
97 }

1 //密钥
2 String AESKey = "1234567890123456";
3 //偏移量
4 String AESIv = "1234567890123456";
5 
6 //密码加密
7 String pwdAES = AESCBCUtils.encrypt_AES(AESKey, loginPassword.getText().toString(), AESIv);
8 //用户名加密
9 String UserNameAES = AESCBCUtils.encrypt_AES(AESKey, loginAccount.getText().toString(), AESIv);