android 中使用java aes加密算法，报错信息android javax.crypto.BadPaddingException: pad block corrupted

android javax.crypto.BadPaddingException: pad block corrupted

今天发现在windows上能正常使用的java aes代码在android上无法使用，折腾了一天。。。。最后查了些资料后发现主要原因是在windows上以及android上产生的key是不同的，所以更改了以下类的使用方法便可以正常使用。主要是自己传递了一个16个字符的seed即可。
以下代码经过在手机上测试可用

 import java.security.SecureRandom;
 import java.util.UUID;
 
 
import javax.crypto.Cipher;
 import javax.crypto.KeyGenerator;
 import javax.crypto.SecretKey;
 import javax.crypto.spec.SecretKeySpec;
 /**
 
 
 
  
AES加密器
 
  
@author padnans
 
  
 
 
 
 
 
/
 public class AESEncryptor {
 /*
 * 生成秘钥 16位，否则不能进行正常的加密解密
 /
 public static final int passwordLength = 16;
 /*
 * 生成秘钥 16位，否则不能进行正常的加密解密
 * @return
 /
 public static String randomPassword(){
 String uuid = UUID.randomUUID().toString();
 System.out.println("uuid = "+uuid.length());
 int random = (int)(Math.random()11);
 String password = uuid.substring(random,random+passwordLength);
 return password;
 }
 public static String encrypt(String seed, String cleartext)
 throws Exception {
 // byte[] rawKey = getRawKey(seed.getBytes());
 byte[] rawKey = seed.getBytes();
 byte[] result = encrypt(rawKey, cleartext.getBytes());
 return toHex(result);
 }
 
 
public static String decrypt(String seed, String encrypted)
        throws Exception {
    // byte[] rawKey = getRawKey(seed.getBytes());
    byte[] rawKey = seed.getBytes();
    byte[] enc = toByte(encrypted);
    byte[] result = decrypt(rawKey, enc);
    return new String(result);
}

private static byte[] getRawKey(byte[] seed) throws Exception {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
    sr.setSeed(seed);
    kgen.init(128, sr); // 192 and 256 bits may not be available
    SecretKey skey = kgen.generateKey();
    byte[] raw = skey.getEncoded();
    return raw;
}

private static byte[] encrypt(byte[] raw, byte[] clear) throws Exception {
    SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
    byte[] encrypted = cipher.doFinal(clear);
    return encrypted;
}

private static byte[] decrypt(byte[] raw, byte[] encrypted)
        throws Exception {
    SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    cipher.init(Cipher.DECRYPT_MODE, skeySpec);
    byte[] decrypted = cipher.doFinal(encrypted);
    return decrypted;
}

public static String toHex(String txt) {
    return toHex(txt.getBytes());
}

public static String fromHex(String hex) {
    return new String(toByte(hex));
}

public static byte[] toByte(String hexString) {
    int len = hexString.length() / 2;
    byte[] result = new byte[len];
    for (int i = 0; i < len; i++)
        result[i] = Integer.valueOf(hexString.substring(2 * i, 2 * i + 2),
                16).byteValue();
    return result;
}

public static String toHex(byte[] buf) {
    if (buf == null)
        return "";
    StringBuffer result = new StringBuffer(2 * buf.length);
    for (int i = 0; i < buf.length; i++) {
        appendHex(result, buf[i]);
    }
    return result.toString();
}

private final static String HEX = "0123456789ABCDEF";

private static void appendHex(StringBuffer sb, byte b) {
    sb.append(HEX.charAt((b >> 4) & 0x0f)).append(HEX.charAt(b & 0x0f));
}
 
 
}
 
 

测试代码：
加密：

 String random = AESEncryptor.randomPassword();
 String password = random;
 try {
 String msgEncrypt = AESEncryptor.encrypt(password,mMsgText);
 mMsgText = password+msgEncrypt+"[.SNAPCHAT]";
 Log.i("=======加密========密码："+password+",数据："+msgEncrypt);
 }catch (Exception e){
 e.printStackTrace();
 }
 

解密：

 String password = sms.content.substring(0,AESEncryptor.passwordLength);
 String msgEncrypt = sms.content.substring(AESEncryptor.passwordLength).replace("[.SNAPCHAT]","");// 前面16个字符是秘钥的一部分
 String s = "";
 try {
 s = AESEncryptor.decrypt(password, msgEncrypt);
 Log.i("=======解密========密码："+password+",数据："+msgEncrypt);
 }catch (Exception e){
 e.printStackTrace();
 }