Blockchain-Enhanced Fair Task Scheduling for Cloud-Fog-Edge Coordination Environments: Model and Algorithm

Algorithm 3

Class of transaction.

	class Transaction {
(1)	String transactionId;
(2)	PublicKey trustor;//the public key of trustor
(3)	PublicKey trustee;//the public key of trustee
(4)	double trust;//trust value from trustor to trustee
(5)	byte[] signature;
(6)	ArrayList < Transaction > transactions;
(7)	boolean processTransaction() {
(8)	verifySignature();
(9)	transactionId = calulateHash();
(10)	generateTrust();//generate trust according to transaction details
(11)	TransactionOutput(this.recipient, trust, transactionId));
(12)	return true;
(13)	} //add transactions into transactionChain TBB
(14)	boolean addTransaction(Transaction transaction) {
(15)	verifyTransaction();
(16)	processTransaction();
(17)	transactions.add(transaction);
(18)	return true;
(19)	}
	}