CR-BA: Public Key Infrastructure Certificate Revocation Scheme Based on Blockchain and Accumulator

Algorithm 3

Verification algorithm, verify.

	Input: accValue, member, witness, key
	Output: true or false//validation response
(1)	ChaincodeStub stub = ctx.getStub ();
(2)	byte [] ojectBytes = stub.getState(Accumulator.class.getSimpleName ());
(3)	Accumulator accValue = deserialize (ojectBytes); //deserialize the accumulator object
(4)	Acc ← FindBlockchainContract; //get the accumulator value
(5)	result ← Acc.verify(member);//verify member is in the accumulator
(6)	if (result = = 0) {
(7)	return true; //verify successfully
(8)	else
(9)	return false;