c#大圣之路笔记——c#编程之Password加密

        #region  encrypt
        protected byte[] Encrypt(string password)
        {
            //declare
            byte[] buffer;
            
            //            buffer = Encoding.UTF8.GetBytes(password);
            //            password = Convert.ToBase64String(buffer, 0, buffer.Length);
            buffer = Encoding.UTF8.GetBytes(password);

            //return buffer;

            MemoryStream ms = new MemoryStream();
            SymmetricAlgorithm sa ;
            sa = RC2.Create();
            sa.Key = PasswordKey;
            sa.IV = PasswordKey;

            CryptoStream cs = new CryptoStream(ms, sa.CreateEncryptor(), CryptoStreamMode.Write);

            try
            {
                for(int i = 0; i < buffer.Length; i++)
                {
                    cs.WriteByte(buffer[i]);
                }
            }
            finally
            {
                cs.Close();
                ms.Close();
            }

            return ms.ToArray();
        }
        #endregion