Federated Medical Learning Framework Based on Blockchain and Homomorphic Encryption

Algorithm 1

SC.

 Input:

 Output:

 procedure confirm()

 if confirm trans.sender is not CDO then

  throw

 else

  Save to []

 end if

 end procedure

 procedure select()

 if select trans.sender is not TA then

  throw;

 else

   = random (block.timestap, block.diffculty, CDO.length)

  select.

 end if

end procedure