SPCTR: Sealed Auction-Based Procurement for Closest Pre-Tender with Range Validation

Algorithm 1

MinValSel.

	Input:
	Alice: A list of encrypted bids ;
	Bob: The private key and the public key ;
	Output:
	Alice: ;
	Bob: The index of the minimum value;
(1)	At Alice:
(2)	Choose number of -bit random numbers
(3)	Compute ;
(4)	Create the garbled circuit, garbled values
(5)	Send , the garbled circuit, to Bob;
(6)	At Bob:
(7)	Decrypt to get
(8)	Invoke oblivious transfer to get garbled values ;
(9)	Evaluate the circuit to get the index of the minimum value;
(10)	Send to Alice;
(11)	At Alice:
(12)	return ;