Advanced Encryption in Silverlight and .NET Applications

AES encryption is implemented in both Silverlight and .NET run times, using exact same set of classes, primary one being AesManaged class.

using System;
using System.Text;
using System.Security.Cryptography;
using System.IO;
 
namespace Encryption
{
    public static class EncryptionUtility
    {
        public static string Encrypt(string input, string password)
        {
 
            byte[] utfData = UTF8Encoding.UTF8.GetBytes(input);
            byte[] saltBytes = Encoding.UTF8.GetBytes(password);
            string encryptedString = string.Empty;
            using (AesManaged aes = new AesManaged())
            {
                Rfc2898DeriveBytes rfc = new Rfc2898DeriveBytes(password, saltBytes);
 
                aes.BlockSize = aes.LegalBlockSizes[0].MaxSize;
                aes.KeySize = aes.LegalKeySizes[0].MaxSize;
                aes.Key = rfc.GetBytes(aes.KeySize / 8);
                aes.IV = rfc.GetBytes(aes.BlockSize / 8);
 
                using (ICryptoTransform encryptTransform = aes.CreateEncryptor())
                {
                    using (MemoryStream encryptedStream = new MemoryStream())
                    {
                        using (CryptoStream encryptor = 
                            new CryptoStream(encryptedStream, encryptTransform, CryptoStreamMode.Write))
                        {
                            encryptor.Write(utfData, 0, utfData.Length);
                            encryptor.Flush();
                            encryptor.Close();
 
                            byte[] encryptBytes = encryptedStream.ToArray();
                            encryptedString = Convert.ToBase64String(encryptBytes);
                        }
                    }
                }
            }
            return encryptedString;
        }
 
        public static string Decrypt(string input, string password)
        {
 
            byte[] encryptedBytes = Convert.FromBase64String(input);
            byte[] saltBytes = Encoding.UTF8.GetBytes(password);
            string decryptedString = string.Empty;
            using (var aes = new AesManaged())
            {
                Rfc2898DeriveBytes rfc = new Rfc2898DeriveBytes(password, saltBytes);
                aes.BlockSize = aes.LegalBlockSizes[0].MaxSize;
                aes.KeySize = aes.LegalKeySizes[0].MaxSize;
                aes.Key = rfc.GetBytes(aes.KeySize / 8);
                aes.IV = rfc.GetBytes(aes.BlockSize / 8);
 
                using (ICryptoTransform decryptTransform = aes.CreateDecryptor())
                {
                    using (MemoryStream decryptedStream = new MemoryStream())
                    {
                        CryptoStream decryptor = 
                            new CryptoStream(decryptedStream, decryptTransform, CryptoStreamMode.Write);
                        decryptor.Write(encryptedBytes, 0, encryptedBytes.Length);
                        decryptor.Flush();
                        decryptor.Close();
 
                        byte[] decryptBytes = decryptedStream.ToArray();
                        decryptedString = 
                            UTF8Encoding.UTF8.GetString(decryptBytes, 0, decryptBytes.Length);
                    }
                }
            }
 
            return decryptedString;
        }
    }
}