BSSPD: A Blockchain-Based Security Sharing Scheme for Personal Data with Fine-Grained Access Control

Algorithm 10

Search and EndSearch.

 Input: from, uid,

 Output: data_rows

1 send action (UMContract,Authenticate,Auth,(_self,Search,from,id,))

2 if get false then

3 throw;

4 else

5 t_itr=t_idx.find();

6 whilet_itr != search_table.end() andt_itr.t == andt_itr.A == from

7  data_row=search_table.find(t_itr.fid);

8  data_rows.add(data_row);

   t_idx++;

9 end

10 returndata_rows;

11 end