A Multiuser Ciphertext Search Scheme Based on Blockchain and SGX

Algorithm 2

Data acquisition and search computation.

	Input: ; ; ; count;
	Output: search result;
(1)	Set ;
(2)	if (h = ) then
(3)	Decrypt ;
(4)	Decrypt ;
(5)	Decrypt ;
(6)	Search computation with ;
(7)	if (count ! = 0) then
(8)	Encrypted ;
(9)	return ;
(10)	else
(11)	return false;