Android Development decryption is appearing pad block corrupted error

Scenario: Running on the virtual machine is normal, but to my real machine decryption failed, appeared pad block corrupted, is said to be version reason: My machine is Xiaomi 3 latest version of Android 4.2

The code that is having the problem:

private static byte[] Getrawkey (byte[] seed) throws Exception {
Keygenerator KGen = keygenerator.getinstance ("AES");
//securerandom sr = securerandom.getinstance ("sha1prng"); //Previous code
securerandom sr = securerandom.getinstance ("Sha1prng", "Crypto"); The code after the modification
Sr.setseed (seed);
Kgen.init (+, SR); 192 and available
Secretkey skey = Kgen.generatekey ();
Byte[] raw = skey.getencoded ();
return raw;
}

The following is a full code for encrypting and decrypting classes:

 PackageCom.example.qurenwu.qurenwu_2.util;ImportJava.security.SecureRandom;ImportJavax.crypto.Cipher;ImportJavax.crypto.KeyGenerator;ImportJavax.crypto.SecretKey;ImportJavax.crypto.spec.SecretKeySpec;/*** AES Encryption *@authorEric_ni **/ Public classAesencryptor {/*** AES Encryption*/     Public StaticString Encrypt (string seed, String cleartext)throwsException {byte[] Rawkey =Getrawkey (Seed.getbytes ()); byte[] result =Encrypt (Rawkey, cleartext.getbytes ()); returnTohex (Result); }    /*** AES Decryption*/     Public StaticString decrypt (string seed, string encrypted)throwsException {byte[] Rawkey =Getrawkey (Seed.getbytes ()); byte[] enc =ToByte (encrypted); byte[] result =Decrypt (Rawkey, ENC); return NewString (Result); }    Private Static byte[] Getrawkey (byte[] seed)throwsException {keygenerator KGen= Keygenerator.getinstance ("AES"); //securerandom sr = securerandom.getinstance ("sha1prng");securerandom sr = securerandom.getinstance ("Sha1prng", "Crypto");        Sr.setseed (seed); Kgen.init (, SR);//192 and availableSecretkey Skey =Kgen.generatekey (); byte[] Raw =skey.getencoded (); returnRaw; }    /*** Encryption *@paramRaw *@paramClear *@return     * @throwsException*/    Private Static byte[] Encrypt (byte[] Raw,byte[] Clear)throwsException {secretkeyspec Skeyspec=NewSecretkeyspec (Raw, "AES"); Cipher Cipher= Cipher.getinstance ("AES");        Cipher.init (Cipher.encrypt_mode, Skeyspec); byte[] encrypted =cipher.dofinal (Clear); returnencrypted; }    /*** Decryption *@paramRaw *@paramEncrypted *@return     * @throwsException*/    Private Static byte[] Decrypt (byte[] Raw,byte[] encrypted)throwsException {secretkeyspec Skeyspec=NewSecretkeyspec (Raw, "AES"); Cipher Cipher= Cipher.getinstance ("AES");        Cipher.init (Cipher.decrypt_mode, Skeyspec); byte[] decrypted =cipher.dofinal (encrypted); returndecrypted; }     Public Staticstring Tohex (String txt) {returnTohex (Txt.getbytes ()); }     Public Staticstring Fromhex (String hex) {return NewString (ToByte (hex)); }     Public Static byte[] ToByte (String hexstring) {intLen = Hexstring.length ()/2; byte[] result =New byte[Len];  for(inti = 0; i < Len; i++) Result[i]= Integer.valueof (hexstring.substring (2*i, 2*i+2), 16). Bytevalue (); returnresult; }     Public StaticString Tohex (byte[] buf) {        if(BUF = =NULL)            return""; StringBuffer result=NewStringBuffer (buf.length);  for(inti = 0; i < buf.length; i++) {Appendhex (result, buf[i]); }        returnresult.tostring (); }    Private Final StaticString HEX = "0123456789ABCDEF"; Private Static voidAppendhex (StringBuffer SB,byteb) {sb.append (Hex.charat (b>>4) (&0x0f)). Append (Hex.charat (b&0x0f)); }}

Call Method:

Password = aesencryptor.decrypt (aes_seed, password);  // Aes_seed is the seed code, I do not know what the specific role, anyway can be defined with their own

Android Development decryption is appearing pad block corrupted error