AES Encryption decrypts C # code

Using System;  Using System.Collections.Generic;  Using System.Linq;  Using System.Text;  Using System.Security.Cryptography;        Using System.IO; namespace Aesdemo {public static class Aeshelper {//// AES encryption /////PlainText that is encrypted///Secret key///Vector///
 
  
   Ciphertext
  
           public static byte[] Aesencrypt (byte[] Data, String Key, String Vector) {byte[] bkey = NE              W BYTE[32];              Array.copy (Encoding.UTF8.GetBytes (Key.padright (bkey.length)), Bkey, bkey.length);              byte[] Bvector = new BYTE[16];                    Array.copy (Encoding.UTF8.GetBytes (Vector.padright (bvector.length)), Bvector, bvector.length); byte[] cryptograph = null;              Encrypted ciphertext Rijndael Aes = Rijndael.create ();                  try {//open a memory stream using (MemoryStream memories = new MemoryStream ()) {//wraps the memory stream object into an encrypted stream object using (CryptoStream encryptor = new CryptoStream (Memo                      Ry, Aes.createencryptor (Bkey, Bvector), CryptoStreamMode.Write)                   {//PlainText data written to encrypted stream Encryptor.write (data, 0, data.length);       Encryptor.flushfinalblock ();                      Cryptograph = Memory.toarray ();              }}} catch {cryptograph = null;          } return cryptograph;  }                ///// AES decryption /////Decrypted cipher.///Secret key///Vector///
 
  
   plaintext
  
           public static byte[] Aesdecrypt (byte[] Data, String Key, String Vector) {byte[] bkey = NE              W BYTE[32];              Array.copy (Encoding.UTF8.GetBytes (Key.padright (bkey.length)), Bkey, bkey.length);              byte[] Bvector = new BYTE[16];                    Array.copy (Encoding.UTF8.GetBytes (Vector.padright (bvector.length)), Bvector, bvector.length); byte[] original = null;              decrypted plaintext Rijndael Aes = Rijndael.create ();                  try {//open up a memory stream to store ciphertext using (MemoryStream memory = new MemoryStream (Data)) {//wraps the memory stream object into an encrypted stream object using (CryptoStream decryptor = new Cryptost                      Ream (Memory, Aes.createdecryptor (Bkey, Bvector), CryptoStreamMode.Read)) {//plaintext storage using (MemoryStream originalmemory = new Memory    Stream ())                      {byte[] Buffer = new byte[1024];                              Int32 readbytes = 0;                                  while ((Readbytes = Decryptor.read (Buffer, 0, buffer.length)) > 0) {                              Originalmemory.write (Buffer, 0, readbytes);                          } original = Originalmemory.toarray (); }}}} catch {original = Nu              ll          } return original;  }}} does not use vectors: public static class Aescrypto {////IV vectors are fixed values///           private static byte[] _iv = {//85, 60, 12, 116,//99, 189, 173, 19,//                138, 183, 232, 248,//82, 232, 200, 242//}; public static byte[] Decrypt (byte[] encryptedbytes, byte[] key) {MemoryStream mstream = new MemoryStream (encry  Ptedbytes);  Mstream.write (encryptedbytes, 0, encryptedbytes.length);  Mstream.seek (0, Seekorigin.begin);              RijndaelManaged AES = new RijndaelManaged (); Aes.              Mode = CIPHERMODE.ECB; Aes.              Padding = PADDINGMODE.PKCS7; Aes.  KeySize = 128; Aes.  key = key;  AES.IV = _iv; CryptoStream cryptostream = new CryptoStream (Mstream, AES.  CreateDecryptor (), cryptostreammode.read);  try {byte[] tmp = new byte[encryptedbytes.length + 32];  int len = cryptostream.read (tmp, 0, encryptedbytes.length + 32);  byte[] ret = new byte[Len];  Array.copy (TMP, 0, ret, 0, Len);  return ret;  } finally {cryptostream.close (); MsTream.  Close (); Aes.  Clear (); }} public static byte[] Encrypt (byte[] plainbytes, byte[] key) {MemoryStream mstre              am = new MemoryStream ();                    RijndaelManaged AES = new RijndaelManaged (); Aes.              Mode = CIPHERMODE.ECB; Aes.              Padding = PADDINGMODE.PKCS7; Aes.              KeySize = 128; Aes.                    Key = _key; Aes.              key = key;              AES.IV = _iv; CryptoStream cryptostream = new CryptoStream (Mstream, AES.              CreateEncryptor (), cryptostreammode.write);                  try {cryptostream.write (plainbytes, 0, plainbytes.length);                  Cryptostream.flushfinalblock ();              return Mstream.toarray ();                  } finally {cryptostream.close ();                  Mstream.close (); Aes.              Clear (); }          }      }

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