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");
}
public static void SendMessageOnGroup(APIServer server, GroupRepository groupRepository)
{
Console.WriteLine("Enter the group on which you want to send messages:");
var groupName = Console.ReadLine();
string pubKeyFile = groupName + "PublicKey.txt";
string privKeyFile = groupName + "PrivateKey.txt";
Group group = server.GetGroupByName(groupName);
if (pubKeyFile != null && privKeyFile != null)
{
var groupCreator = GetGroupCreator(server, pubKeyFile, privKeyFile);
ParticipantMessage message = new ParticipantMessage();
Console.WriteLine("Enter the message you want to send:");
message.Message = Console.ReadLine();
Console.WriteLine("Enter your nickname:");
var nickname = Console.ReadLine();
ClientParticipant clientParticipant = new ClientParticipant(server, groupRepository);
var blindparticipant = groupCreator.GetBlindParticipantByNickname(group.Id, nickname);
VerifiedParticipant verifiedParticipant = new VerifiedParticipant
{
PublicKey = blindparticipant.PublicKey,
Signature = blindparticipant.Signature
};
message.BlindParticipant = blindparticipant.Id.ToString();
clientParticipant.AddMessage(group.Id, message, verifiedParticipant);
Console.WriteLine("Participant verified");
Console.WriteLine("Message sent");
}
else
{
Console.WriteLine("Group creator Keys were not saved to file, please go to step 1");
}
}
static public void RegisterParticipant(APIServer server, GroupRepository groupRepository, CertificateGenerator generator)
{
Console.WriteLine("Enter the group for which you want to register participants:");
string groupName = Console.ReadLine();
string pubKeyFile = groupName + "PublicKey.txt";
string privKeyFile = groupName + "PrivateKey.txt";
if (pubKeyFile != null && privKeyFile != null)
{
var groupCreator = GetGroupCreator(server, pubKeyFile, privKeyFile);
Console.WriteLine();
Console.WriteLine("Enter participant email to be confirmed:");
var participantEmail = Console.ReadLine();
var participant = groupCreator.GetParticipantToConfirm(groupName, participantEmail);
int invitationCode = participant.InvitationCode;
Guid groupId = (Guid)participant.GroupId;
string email = participant.Email;
Group user_group = groupCreator.GetGroup(participant.InvitationCode);
ClientParticipant clientParticipant = new ClientParticipant(server, groupRepository);
var groupPublicKey = clientParticipant.GetGroupDetails(invitationCode);
//Generate certificate
var participantKeys = generator.GenerateCertificate("C=RO,O=Qubiz", TimeSpan.FromDays(1), "certParticipant.pfx", "Test.123");
Console.WriteLine("Client certificate was generated");
//Write keys to file
File.WriteAllText(participantEmail.Substring(0, participantEmail.IndexOf("@")) + "PublicKey.txt", RsaKeyUtils.GetSerializedPublicKey((RsaKeyParameters)participantKeys.Public));
File.WriteAllText(participantEmail.Substring(0, participantEmail.IndexOf("@")) + "PrivateKey.txt", RsaKeyUtils.GetSerializedPrivateKey((RsaKeyParameters)participantKeys.Private));
Console.WriteLine("Participant keys were saved to file");
//Create GroupRegistration
var groupRegistration = clientParticipant.GetGroupRegistration(invitationCode, (RsaKeyParameters)participantKeys.Public);
Console.WriteLine("Blind factor was saved");
//Save blindedCertificate
clientParticipant.RegisterBlindCertificate(invitationCode, groupRegistration);
Console.WriteLine("Blind certificate was saved");
}
else
{
Console.WriteLine("Group creator Keys were not saved to file, please go to step 1");
}
}
static void Main(string[] args)
{
//Asta va fi inlocuit cu un API call
SignatureVerifier signatureVerifier = new SignatureVerifier();
RNGRandomGenerator rngGenerator = new RNGRandomGenerator();
EmailSender emailSender = new EmailSender();
BlindChatDbContext context = new BlindChatDbContext();
GroupRepository groupRepository = new GroupRepository(context);
APIServer server = new APIServer(groupRepository, emailSender, rngGenerator, signatureVerifier);
//Set participants
List <Participant> unconfirmedParticipants = server.GetParticipantsToConfirm("Loazarii");
foreach (var participant in unconfirmedParticipants)
{
int invitationCode = participant.InvitationCode;
Guid groupId = (Guid)participant.GroupId;
string email = participant.Email;
Group group = server.GetGroup(participant.InvitationCode);
ClientParticipant clientParticipant = new ClientParticipant(server, groupRepository);
var groupPublicKey = clientParticipant.GetGroupDetails(invitationCode);
//Generate certificate
CertificateGenerator generator = new CertificateGenerator();
var participantKeys = generator.GenerateCertificate("C=RO,O=Qubiz", TimeSpan.FromDays(1), "certParticipant.pfx", "Test.123");
//Serialize
var privateSerializedKey = RsaKeyUtils.GetSerializedPrivateKey(participantKeys.Private);
var publicSerializedKey = RsaKeyUtils.GetSerializedPublicKey(participantKeys.Public);
//Concatenante serialized key
var content = RsaKeyUtils.Combine(publicSerializedKey, privateSerializedKey);
//Generate blind content
ContentBlinder contentBlinder = new ContentBlinder((RsaKeyParameters)groupPublicKey, "Loazarii");
var blindedContent = contentBlinder.GetBlindedContent(content);
var groupRegistration = clientParticipant.GetGroupRegistration(invitationCode, (RsaKeyParameters)participantKeys.Public);
//Save blindedCertificate
clientParticipant.RegisterBlindCertificate(invitationCode, groupRegistration);
//Send for sign DONE
//Get blindSignature
var blindMessage = server.GetSignedMessage(groupId, email);
var signature = Convert.FromBase64CharArray(blindMessage.Signature.ToCharArray(), 0, blindMessage.Signature.Length);
//Unblind signature
var unblindedSignature = contentBlinder.GetUnblindedSignature(signature);
//Verify
var verifiedParticipant = clientParticipant.CheckVerifiedEntity(group, participant.Email, groupRegistration);
clientParticipant.AddClientCertificate(verifiedParticipant, group, email);
ParticipantMessage message = new ParticipantMessage();
message.Message = "Andreiu, ce nevoie faci?";
clientParticipant.AddMessage(groupId, message, verifiedParticipant);
}
Console.ReadKey();
}
