public static ChainValidationResults BallotChainIsValid(List <Ballot> ballots)
{
var results = new ChainValidationResults();
var eoc = false;
var processedBallots = 0;
byte[] nextBallotHash = Ballot.EmptyHash;
while (eoc == false)
{
if (processedBallots == ballots.Count)
{
eoc = true;
break;
}
else
{
processedBallots++;
}
Ballot ballot = null;
try
{
ballot = ballots.Single(x => x.PreviousBallotHash.SequenceEqual(nextBallotHash));
}
catch (Exception ex)
{
results.Messages.Add(ex.Message + " for ballot " + ballot.Id.ToString());
}
if (!ballot.BallotIsValid())
{
results.Messages.Add("Ballot data has been tampered with " + ballot.Id.ToString());
}
if (!ballot.ballotHasValidHash())
{
results.Messages.Add("Ballot chain is broken " + ballot.Id.ToString());
}
if (!ballot.PreviousBallotHash.SequenceEqual(Ballot.EmptyHash) && ballots.Count(x => x.BallotHash == ballot.PreviousBallotHash) == 0)
{
results.Messages.Add("Ballot chain is broken " + ballot.Id.ToString());
}
nextBallotHash = ballot.BallotHash;
}
return(results);
}
public static ChainValidationResults BallotChainIsValid(List<Ballot> ballots)
{
var results = new ChainValidationResults();
var eoc = false;
var processedBallots = 0;
byte[] nextBallotHash = Ballot.EmptyHash;
while(eoc == false) {
if(processedBallots == ballots.Count)
{
eoc = true;
break;
}
else
{
processedBallots++;
}
Ballot ballot = null;
try
{
ballot = ballots.Single(x => x.PreviousBallotHash.SequenceEqual(nextBallotHash));
}
catch(Exception ex)
{
results.Messages.Add(ex.Message + " for ballot " + ballot.Id.ToString());
}
if (!ballot.BallotIsValid())
{
results.Messages.Add("Ballot data has been tampered with " + ballot.Id.ToString());
}
if (!ballot.ballotHasValidHash())
{
results.Messages.Add("Ballot chain is broken " + ballot.Id.ToString());
}
if(!ballot.PreviousBallotHash.SequenceEqual(Ballot.EmptyHash) && ballots.Count(x=> x.BallotHash == ballot.PreviousBallotHash) == 0)
{
results.Messages.Add("Ballot chain is broken " + ballot.Id.ToString());
}
nextBallotHash = ballot.BallotHash;
}
return results;
}
