public IEnumerable <PollResult> CalculateResults(long pollId)
{
var poll = _dataAccessService.GetEcPoll(pollId, true, true);
Dictionary <byte[], PollResult> votes = new Dictionary <byte[], PollResult>(new Byte32EqualityComparer());
foreach (var candidate in poll.Candidates)
{
byte[] assetId = candidate.AssetId.HexStringToByteArray();
byte[] commitment = ConfidentialAssetsHelper.GetNonblindedAssetCommitment(assetId);
votes.Add(commitment, new PollResult
{
Candidate = _translatorsRepository.GetInstance <EcCandidateRecord, Candidate>().Translate(candidate),
Votes = 0
});
}
foreach (var vote in poll.PollSelections.Where(s => !string.IsNullOrEmpty(s.VoterBlindingFactor)))
{
byte[] ecCommitment = vote.EcCommitment.HexStringToByteArray();
byte[] ecBf = vote.EcBlindingFactor.HexStringToByteArray();
byte[] voterBf = vote.VoterBlindingFactor.HexStringToByteArray();
byte[] bf = ConfidentialAssetsHelper.SumScalars(ecBf, voterBf);
byte[] blindingPoint = ConfidentialAssetsHelper.GetPublicKey(bf);
byte[] commitment = ConfidentialAssetsHelper.SubCommitments(ecCommitment, blindingPoint);
if (votes.ContainsKey(commitment))
{
votes[commitment].Votes++;
}
}
return(votes.Select(d => d.Value));
}
public IActionResult SendOnboardingWithValidationsRequest([FromBody] UserAttributeTransferWithValidationsDto userAttributeTransferWithValidations)
{
ulong accountId = ulong.Parse(User.Identity.Name, CultureInfo.InvariantCulture);
bool res = false;
UtxoPersistency utxoPersistency = _executionContextManager.ResolveUtxoExecutionServices(accountId);
var rootAttribute = _dataAccessService.GetUserAttributes(accountId).FirstOrDefault(u => !u.IsOverriden && u.AttributeType == _identityAttributesService.GetRootAttributeType().Item1);
string blindingFactorSeedString = $"{rootAttribute.Content}{userAttributeTransferWithValidations.Password}";
byte[] blindingFactorSeed = ConfidentialAssetsHelper.FastHash256(Encoding.ASCII.GetBytes(blindingFactorSeedString));
byte[] blindingFactor = ConfidentialAssetsHelper.ReduceScalar32(blindingFactorSeed);
byte[] blindingPoint = ConfidentialAssetsHelper.GetPublicKey(blindingFactor);
byte[] rootNonBlindedCommitment = ConfidentialAssetsHelper.GetNonblindedAssetCommitment(rootAttribute.AssetId);
byte[] rootOriginatingCommitment = ConfidentialAssetsHelper.SumCommitments(rootNonBlindedCommitment, blindingPoint);
byte[] target = userAttributeTransferWithValidations.UserAttributeTransfer.Target.HexStringToByteArray();
_dataAccessService.GetAccountId(target, out ulong spAccountId);
AssociatedProofPreparation[] associatedProofPreparations = null;
IEnumerable <SpIdenitityValidation> spIdenitityValidations = _dataAccessService.GetSpIdenitityValidations(spAccountId);
if (spIdenitityValidations != null && spIdenitityValidations.Count() > 0)
{
associatedProofPreparations = new AssociatedProofPreparation[spIdenitityValidations.Count()];
var associatedAttributes = _dataAccessService.GetUserAssociatedAttributes(accountId);
int index = 0;
foreach (var validation in spIdenitityValidations)
{
string attrContent = associatedAttributes.FirstOrDefault(a => a.Item1 == validation.AttributeType)?.Item2 ?? string.Empty;
byte[] groupId = _identityAttributesService.GetGroupId(validation.AttributeType);
byte[] assetId = validation.AttributeType != AttributeType.DateOfBirth ? _assetsService.GenerateAssetId(validation.AttributeType, attrContent) : rootAttribute.AssetId;
byte[] associatedBlindingFactor = validation.AttributeType != AttributeType.DateOfBirth ? ConfidentialAssetsHelper.GetRandomSeed() : null;
byte[] associatedCommitment = validation.AttributeType != AttributeType.DateOfBirth ? ConfidentialAssetsHelper.GetAssetCommitment(assetId, associatedBlindingFactor) : null;
byte[] associatedNonBlindedCommitment = ConfidentialAssetsHelper.GetNonblindedAssetCommitment(assetId);
byte[] associatedOriginatingCommitment = ConfidentialAssetsHelper.SumCommitments(associatedNonBlindedCommitment, blindingPoint);
AssociatedProofPreparation associatedProofPreparation = new AssociatedProofPreparation {
GroupId = groupId, Commitment = associatedCommitment, CommitmentBlindingFactor = associatedBlindingFactor, OriginatingAssociatedCommitment = associatedOriginatingCommitment, OriginatingBlindingFactor = blindingFactor, OriginatingRootCommitment = rootOriginatingCommitment
};
associatedProofPreparations[index++] = associatedProofPreparation;
}
}
SendOnboardingRequest(userAttributeTransferWithValidations.UserAttributeTransfer, utxoPersistency.TransactionsService, associatedProofPreparations);
return(Ok(res));
}