Privacy-Preserving Redactable Blockchain for Internet of Things

Algorithm 2

(implements ).

	Input：Chain , a final candidate transaction , an index of the block
	Output：0/1
(1)	Parse ;
(2)	Parse ;
(3)	Parse .
(4)	if then
(5)	return 0;
(6)	if is invalid then
(7)	return 0;
(8)	Compare the message signed by and the hash of the redaction request, If not equal, return 0;
(9)	Parse ;
(10)	Parse ;
(11)	if then
(12)	return 1;
(13)	else
(14)	return 0;