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package com.zone.vn.tool.custom;

import com.zone.vn.tool.MyAp;
import java.io.UnsupportedEncodingException;
import java.security.NoSuchAlgorithmException;
import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

public final class g
{
  private IvParameterSpec a = new IvParameterSpec(MyAp.a.getBytes());
  private SecretKeySpec b = new SecretKeySpec(MyAp.b.getBytes(), "AES");
  private Cipher c;

  public g()
    throws UnsupportedEncodingException
  {
    try
    {
      this.c = Cipher.getInstance("AES/CBC/NoPadding");
      return;
    }
    catch (NoSuchAlgorithmException localNoSuchAlgorithmException)
    {
      localNoSuchAlgorithmException.printStackTrace();
      return;
    }
    catch (NoSuchPaddingException localNoSuchPaddingException)
    {
      localNoSuchPaddingException.printStackTrace();
    }
  }

  private static byte[] b(String paramString)
  {
    byte[] arrayOfByte = null;
    if (paramString == null);
    while (true)
    {
      return arrayOfByte;
      int i = paramString.length();
      arrayOfByte = null;
      if (i < 2)
        continue;
      int j = paramString.length() / 2;
      arrayOfByte = new byte[j];
      for (int k = 0; k < j; k++)
        arrayOfByte[k] = (byte)Integer.parseInt(paramString.substring(k * 2, 2 + k * 2), 16);
    }
  }

  public final byte[] a(String paramString)
    throws Exception
  {
    if ((paramString == null) || (paramString.length() == 0))
      throw new Exception("Empty string");
    try
    {
      this.c.init(2, this.b, this.a);
      byte[] arrayOfByte = this.c.doFinal(b(paramString));
      return arrayOfByte;
    }
    catch (Exception localException)
    {
    }
    throw new Exception("[decrypt] " + localException.getMessage());
  }
}