Editing Secure Multiparty Delegated Classical Computation (section)

==Outline==

===Main Routine===

The server sends an ancilla bit to the first client.
The first client performs the <math>\pi/2</math> rotation along <math>y</math>-axis according to his input bit and <math>\pi</math> rotation according to his random bit for security.
He then sends the qubit to the next client who performs the same rotation according to his bits.
This process is followed until all clients have performed their operations.
Now, one of the clients performs the conjugate transpose of the <math>\pi/2</math> rotation on the qubit based on the global XOR of all the inputs which he gets by the XOR routine.
The state now prepared is the value of the function XORed with the XOR of the random bits of all clients.
The clients now announce the random bits with the help of which the final result is calculated.

===XOR Routine===

The clients choose random bits whose XOR is their input bit and send each such random bit to each client.
The clients now perform the XOR of the received bits.
To calculate the global XOR, the send their results to the designated client who then performs the XOR of all the received bits to get the global XOR.