json - System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0., Culture=nuetral failed CRM 2011 -

i trying deserialize json string in crm 2011. json string arbitrary , not same fields (keys) returned. trying use system.runtime.serialization.json datacontractjsonserialzer method. found following code in post have modified need:

namespace test { [serializable] public class stringobjectdictionary : isafeserializationdata { public static dictonary<string, object> dict;  public stringobjectdictionary() { dict = new dictionary<string, object>(); }  protected stringobjectdictionary(serializationinfo info, streamingcontext context) { dict = new dictionary<string, object>(); foreach (serialization entry in info) { dict.add(key, dict[key]); } }  void isafeserializationdata.completedeserialization(object obj) { dictionary<string, object> _dict = obj dictionary<string, object>; foreach (string key in dict.keys) { _dict.add(key, dict[key] } } 

i calling above here:

test.stringobjectdictionary[] dummyarray = { new test.stringobjectdictionary() }; datacontractjsonserializer js = new datacontractjsonserializer(dummyarray.gettype()); memorystream stream = new memorystream(encoding.utf8.getbytes(jsonstring)); test.stringobjectdictionary[] dictarray =       (test.stringobjectdictionary[]).js.readobject(stream); 

i using following test json:

 string testjson = @"[{""id"":34,""crmid"":""df4a2ab8-f1ad-e311-abb3-00155d02ea01""}, {""id"":35,""crmid"":""df4a2ab8-f1ad-e311-abb3-0015d042fg94""}]; 

when build , deploy , test workflow receive security error. deployed in sandbox environment , needs work in crm online. possible allow class stringobjectdictionary trusted code can access system.security namespace?