static public void SaveBlindParticipant(APIServer server, GroupRepository groupRepository)
{
Console.WriteLine("Enter the group for which you want to register participants:");
var groupName = Console.ReadLine();
Console.WriteLine("Enter participant email address that you want to be saved as blind participant:");
var participantEmail = Console.ReadLine();
var group = server.GetGroupByName(groupName);
var factor = File.ReadAllText("BlindFactor.txt");
BigInteger blindFactor = new BigInteger(factor);
var fileToRead = (participantEmail.Substring(0, participantEmail.IndexOf("@")) + "PublicKey.txt").ToString();
RsaKeyParameters participantPublicKey = (RsaKeyParameters)RsaKeyUtils.GetDeserializedKPublicKey(File.ReadAllText(fileToRead));
GroupRegistration groupRegistration = new GroupRegistration(group, new ContentBlinder(group.RsaPublicKey, blindFactor), participantPublicKey);
ClientParticipant clientParticipant = new ClientParticipant(server, groupRepository);
VerifiedParticipant verifiedParticipant = clientParticipant.CheckVerifiedEntity(group, participantEmail, groupRegistration);
clientParticipant.AddClientCertificate(verifiedParticipant, group, participantEmail);
Console.WriteLine("Enter nickname:");
var nickname = Console.ReadLine();
clientParticipant.AddBlindParticipant(group.Id, verifiedParticipant, nickname);
Console.WriteLine();
Console.WriteLine("Participant was saved as a blind participant to the group");
}
static public AsymmetricCipherKeyPair ImportCertificate(string pubKeyFile, string privKeyFile)
{
var pubKey = (AsymmetricKeyParameter)RsaKeyUtils.GetDeserializedKPublicKey(File.ReadAllText(pubKeyFile));
var privKey = (AsymmetricKeyParameter)RsaKeyUtils.GetDeserializedPrivateKey(File.ReadAllText(privKeyFile));
AsymmetricCipherKeyPair keys = new AsymmetricCipherKeyPair(pubKey, privKey);
return(keys);
}
public void AddMessage(Guid groupId, ParticipantMessage message, VerifiedParticipant participant)
{
var groupDetails = groupRepository.GetGroup(groupId);
var groupPubKey = File.ReadAllText(groupDetails.Name + "PublicKey.txt");
var rsaPubKey = RsaKeyUtils.GetDeserializedKPublicKey(groupPubKey);
SignedEntity signedEntity = new SignedEntity(FromBase64String(participant.PublicKey), FromBase64String(participant.Signature));
bool isVerified = signatureVerifier.Verify(signedEntity, rsaPubKey);
if (isVerified)
{
groupRepository.SaveMessage(participant, message);
}
}
