Algorithm A2 Secure Multiparty Computing Contract-B

1: if Data usage request received Query the number of members the secret has z For (i = 0, i < =z, i++)          { i = 0;           Send(request)R0->Pz;            i++;            }//Send request messages to each data owner node            Return “Sending successfully” Else “Sending failure”    2: if Receive (Sig (Request) Rz) //Feedback from Data Owners If Sig (Request) Rz = z Return “Allow requests” Else “Request failed” Else “No feedback”