Antitampering Scheme of Evidence Transfer Information in Judicial System Based on Blockchain

Algorithm 1

Chaincode of evidence sending.

	Input: transaction proposal TP;
Output: endorsement result;
(1)	if ||then
(2)	//decrypt ACK with receiver's public key
(3)	if is signed by then
(4)	if ACK.transactionID = = TP.txID &&
(5)	ACK.R = = H (Root ({M(TP.prooflist.hash)})) then
(6)	simulate the transaction;
(7)	calculate the read-write set;
(8)	sign the endorsement file;
(9)	return signed endorsement file;
(10)	end if
(11)	end if
(12)	else
(13)	return false;
(14)	end if