C#

XmlReader txtReader = XmlReader.Create(reader.BaseStream); 
XmlSerializer deSerializer = new XmlSerializer(typeof(ResponseType));
ResponseType resp = (ResponseType)deSerializer.Deserialize(txtReader);

<ns1:newResponse xmlns:ns1="http://xyz.com/datacq/xx/service">
<ns1:info>112200eed1b00e42a061</ns1:info>
</ns1:newResponse>

<xs:element name="addMemberResponse" type="ns:ResponseType" /> 

[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.1432")]
        [System.SerializableAttribute()]
        [System.Diagnostics.DebuggerStepThroughAttribute()]
        [System.ComponentModel.DesignerCategoryAttribute("code")]
        [System.Xml.Serialization.XmlTypeAttribute(Namespace = "http://xyz.com/datacq/xx/service")]
        [System.Xml.Serialization.XmlRootAttribute("addMemberResponse", Namespace = "http://xyz.com/datacq/xx/service", IsNullable = false)]
        public partial class ResponseType
        { 
            private string info; 
            public string Info
            {
                get
                {
                    return this.info;
                }
                set
                {
                    this.info = value;
                }
            }
         }

byte[] bytes = Encoding.ASCII.GetBytes("™ںô…0Dƒہ;?ت£أ¾y");
           byte[] rgbSalt = Encoding.ASCII.GetBytes("ی©¨ô\reعءfcééh­£");
           byte[] buffer = Encoding.UTF8.GetBytes(plainText);
           byte[] rgbKey = new PasswordDeriveBytes("â‘‍¯آJٌ<'=»„&5ؤ؟Kك„y‰‚~–¹'`I½", rgbSalt, "SHA1", 2).GetBytes(256 / 8);
           ICryptoTransform transform = new RijndaelManaged { Mode = CipherMode.CBC }.CreateEncryptor(rgbKey, bytes);
           MemoryStream stream = new MemoryStream();
           CryptoStream stream2 = new CryptoStream(stream, transform, CryptoStreamMode.Write);
           stream2.Write(buffer, 0, buffer.Length);
           stream2.FlushFinalBlock();
           byte[] inArray = stream.ToArray();
           stream.Close();
           stream2.Close();
           str = Convert.ToBase64String(inArray); // i have this str