/// <summary>
/// Create a new vote cast opeation.
/// </summary>
/// <param name="votingId">Id of the voting.</param>
/// <param name="authorityFileName">Filename to save authority data.</param>
/// <param name="authorityCertificate">Authority's certificate.</param>
/// <param name="callBack">Callback upon completion.</param>
public CreateSharePartOperation(Guid votingId, AuthorityCertificate authorityCertificate, string authorityFileName, CreateSharePartCallBack callBack)
{
this.votingId = votingId;
this.authorityFileName = authorityFileName;
this.authorityCertificate = authorityCertificate;
this.callBack = callBack;
}
/// <summary>
/// Loads an authority's data from file.
/// </summary>
/// <param name="fileName">Name of file to load data from.</param>
/// <param name="certificate">Authority's certificate.</param>
public void LoadAuthority(string fileName, AuthorityCertificate certificate)
{
this.authorityEntity = new AuthorityEntity(this.certificateStorage, certificate, fileName);
}
/// <summary>
/// Authority creates share parts and pushes them to the server.
/// </summary>
/// <param name="votingId">Id of the voting.</param>
/// <param name="authorityFileName">Filename to save authority data.</param>
/// <param name="authorityCertificate">Authority's certificate.</param>
/// <param name="callBack">Callback upon completion.</param>
public void CreateSharePart(Guid votingId, AuthorityCertificate authorityCertificate, string authorityFileName, CreateSharePartCallBack callBack)
{
lock (this.operations)
{
this.operations.Enqueue(new CreateSharePartOperation(votingId, authorityCertificate, authorityFileName, callBack));
}
}
/// <summary>
/// Authority create partial deciphers push to server.
/// </summary>
/// <param name="votingId">Id of the voting.</param>
/// <param name="authorityFileName">Filename to load authority data.</param>
/// <param name="authorityCertificate">Authority's certificate.</param>
/// <param name="askCallBack">Callback to ask for permission to partially decipher.</param>
/// <param name="callBack">Callback upon completion.</param>
public void CreateDeciphers(Guid votingId, AuthorityCertificate authorityCertificate, string authorityFileName, AskForPartiallyDecipherCallBack askCallBack, CreateDeciphersCallBack callBack)
{
lock (this.operations)
{
this.operations.Enqueue(new CreateDeciphersOperation(votingId, authorityCertificate, authorityFileName, askCallBack, callBack));
}
}
/// <summary>
/// Creates an authority entity.
/// </summary>
/// <param name="certificate">Certificate of the authority.</param>
public void CreateAuthority(AuthorityCertificate certificate)
{
this.authorityEntity = new AuthorityEntity(this.certificateStorage, certificate);
}
/// <summary>
/// Authority check share parts from server.
/// </summary>
/// <param name="votingId">Id of the voting.</param>
/// <param name="authorityFileName">Filename to load authority data.</param>
/// <param name="authorityCertificate">Authority's certificate.</param>
/// <param name="callBack">Callback upon completion.</param>
public void CheckShares(Guid votingId, AuthorityCertificate authorityCertificate, string authorityFileName, CheckSharesCallBack callBack)
{
lock (this.operations)
{
this.operations.Enqueue(new CheckSharesOperation(votingId, authorityCertificate, authorityFileName, callBack));
}
}
/// <summary>
/// Create a new vote cast opeation.
/// </summary>
/// <param name="votingId">Id of the voting.</param>
/// <param name="authorityFileName">Filename to save authority data.</param>
/// <param name="authorityCertificate">Authority's certificate.</param>
/// <param name="askCallBack">Callback to ask for permission to partially decipher.</param>
/// <param name="callBack">Callback upon completion.</param>
public CreateDeciphersOperation(Guid votingId, AuthorityCertificate authorityCertificate, string authorityFileName, AskForPartiallyDecipherCallBack askCallBack, CreateDeciphersCallBack callBack)
{
this.votingId = votingId;
this.authorityFileName = authorityFileName;
this.authorityCertificate = authorityCertificate;
this.callBack = callBack;
this.askCallBack = askCallBack;
}
/// <summary>
/// Get the index of an authority from certificate.
/// </summary>
/// <param name="certificate">Certificate of the authority.</param>
/// <returns>Index of the authority.</returns>
public int GetAuthorityIndex(AuthorityCertificate certificate)
{
if (certificate == null)
throw new PiArgumentException(ExceptionCode.ArgumentNull, "Certificate is null.");
if (certificate.Validate(this.certificateStorage) != CertificateValidationResult.Valid)
throw new PiSecurityException(ExceptionCode.InvalidCertificate, "Authority certificate invalid.");
MySqlCommand command = new MySqlCommand("SELECT AuthorityIndex FROM authority WHERE VotingId = @VotingId AND AuthorityId = @AuthorityId", DbConnection);
command.Parameters.AddWithValue("@VotingId", this.parameters.VotingId.ToByteArray());
command.Parameters.AddWithValue("@AuthorityId", certificate.Id.ToByteArray());
MySqlDataReader reader = command.ExecuteReader();
if (reader.Read())
{
int authorityIndex = reader.GetInt32(0);
reader.Close();
return authorityIndex;
}
else
{
reader.Close();
throw new PiArgumentException(ExceptionCode.NoAuthorityWithCertificate, "No authority with that certificate.");
}
}
/// <summary>
/// Creates a new authority entity, loading data from file.
/// </summary>
/// <param name="certificateStorage">Certificate storage.</param>
/// <param name="certificate">Certificate of the authority.</param>
/// <param name="authorityFileName">File name to load data from.</param>
public AuthorityEntity(CertificateStorage certificateStorage, AuthorityCertificate certificate, string authorityFileName)
{
this.certificate = certificate;
this.certificateStorage = certificateStorage;
Load(authorityFileName);
}
/// <summary>
/// Create a new authority entity.
/// </summary>
/// <param name="certificate">Certificate of authority.</param>
public AuthorityEntity(CertificateStorage certificateStorage, AuthorityCertificate certificate)
{
this.certificate = certificate;
this.certificateStorage = certificateStorage;
}
/// <summary>
/// Creates a copy of the certificate.
/// </summary>
/// <param name="original">Original certificate to copy.</param>
/// <param name="onlyPublicPart">Leave the private key out?</param>
protected AuthorityCertificate(AuthorityCertificate original, bool onlyPublicPart)
: base(original, onlyPublicPart)
{
this.fullName = original.fullName;
}
/// <summary>
/// Voting entity test.
/// </summary>
/// <remarks>
/// Used only during development.
/// </remarks>
public void EntityTest()
{
IRpcConnection connection = new DummyConnection();
DateTime validUntil = DateTime.Now.AddDays(1);
var root = new CACertificate(null, "Root");
root.CreateSelfSignature();
var rootCrl = new RevocationList(root.Id, DateTime.Now, validUntil, new List<Guid>());
var sigRootCrl = new Signed<RevocationList>(rootCrl, root);
var intermediate = new CACertificate(null, "Intermediate");
intermediate.CreateSelfSignature();
intermediate.AddSignature(root, validUntil);
var intCrl = new RevocationList(intermediate.Id, DateTime.Now, validUntil, new List<Guid>());
var sigIntCrl = new Signed<RevocationList>(intCrl, intermediate);
var admin = new AdminCertificate(Language.English, null, "Admin");
admin.CreateSelfSignature();
admin.AddSignature(intermediate, DateTime.Now.AddDays(1));
var serverCert = new ServerCertificate("Server");
serverCert.CreateSelfSignature();
serverCert.AddSignature(intermediate, DateTime.Now.AddDays(1));
VotingParameters parameters =
new VotingParameters(
new MultiLanguageString("Zufrieden"),
new MultiLanguageString("Tada"),
new MultiLanguageString(string.Empty),
DateTime.Now,
DateTime.Now.AddDays(1),
0);
parameters.GenerateNumbers(Files.TestDataPath);
Question question = new Question(new MultiLanguageString("Zufrieden?"), new MultiLanguageString(string.Empty), new MultiLanguageString(string.Empty), 1);
question.AddOption(new Option(new MultiLanguageString("Nein"), new MultiLanguageString("Dagegen"), new MultiLanguageString(string.Empty)));
question.AddOption(new Option(new MultiLanguageString("Ja"), new MultiLanguageString("Dafür"), new MultiLanguageString(string.Empty)));
parameters.AddQuestion(question);
Signed<VotingParameters> signedParameters = new Signed<VotingParameters>(parameters, admin);
DateTime start = DateTime.Now;
Console.WriteLine();
Console.Write("Voting begins...");
CertificateStorage serverCertStorage = new CertificateStorage();
serverCertStorage.AddRoot(root);
serverCertStorage.Add(intermediate);
serverCertStorage.AddRevocationList(sigRootCrl);
serverCertStorage.AddRevocationList(sigIntCrl);
VotingServerEntity vs = new VotingServerEntity(null, signedParameters, serverCertStorage, serverCert);
var a1c = new AuthorityCertificate(Language.English, "Authority 1", null);
a1c.CreateSelfSignature();
a1c.AddSignature(intermediate, validUntil);
var a2c = new AuthorityCertificate(Language.English, "Authority 2", null);
a2c.CreateSelfSignature();
a2c.AddSignature(intermediate, validUntil);
var a3c = new AuthorityCertificate(Language.English, "Authority 3", null);
a3c.CreateSelfSignature();
a3c.AddSignature(intermediate, validUntil);
var a4c = new AuthorityCertificate(Language.English, "Authority 4", null);
a4c.CreateSelfSignature();
a4c.AddSignature(intermediate, validUntil);
var a5c = new AuthorityCertificate(Language.English, "Authority 5", null);
a5c.CreateSelfSignature();
a5c.AddSignature(intermediate, validUntil);
var a1 = new AuthorityEntity(serverCertStorage, a1c);
var a2 = new AuthorityEntity(serverCertStorage, a2c);
var a3 = new AuthorityEntity(serverCertStorage, a3c);
var a4 = new AuthorityEntity(serverCertStorage, a4c);
var a5 = new AuthorityEntity(serverCertStorage, a5c);
vs.AddAuthority(connection, a1.Certificate);
vs.AddAuthority(connection, a2.Certificate);
vs.AddAuthority(connection, a3.Certificate);
vs.AddAuthority(connection, a4.Certificate);
vs.AddAuthority(connection, a5.Certificate);
a1.Prepare(1, vs.SignedParameters);
a2.Prepare(2, vs.SignedParameters);
a3.Prepare(3, vs.SignedParameters);
a4.Prepare(4, vs.SignedParameters);
a5.Prepare(5, vs.SignedParameters);
a1.SetAuthorities(vs.AuthorityList);
a2.SetAuthorities(vs.AuthorityList);
a3.SetAuthorities(vs.AuthorityList);
a4.SetAuthorities(vs.AuthorityList);
a5.SetAuthorities(vs.AuthorityList);
vs.DepositShares(connection, a1.GetShares());
vs.DepositShares(connection, a2.GetShares());
vs.DepositShares(connection, a3.GetShares());
vs.DepositShares(connection, a4.GetShares());
vs.DepositShares(connection, a5.GetShares());
var r1 = a1.VerifyShares(vs.GetAllShares());
var r2 = a2.VerifyShares(vs.GetAllShares());
var r3 = a3.VerifyShares(vs.GetAllShares());
var r4 = a4.VerifyShares(vs.GetAllShares());
var r5 = a5.VerifyShares(vs.GetAllShares());
vs.DepositShareResponse(connection, r1);
vs.DepositShareResponse(connection, r2);
vs.DepositShareResponse(connection, r3);
vs.DepositShareResponse(connection, r4);
vs.DepositShareResponse(connection, r5);
var v1c = new VoterCertificate(Language.English, null, 0);
v1c.CreateSelfSignature();
v1c.AddSignature(intermediate, validUntil);
var cs = new CertificateStorage();
cs.AddRoot(root);
var v1 = new VoterEntity(cs);
IEnumerable<int> questionVota = new int[] { 0, 1 };
var vote1 = v1.Vote(vs.GetVotingMaterial(), v1c, new IEnumerable<int>[] { questionVota }, null);
vs.Vote(connection, vote1);
int voters = 10;
for (int i = 1000; i < 1000 + voters; i++)
{
var vc = new VoterCertificate(Language.English, null, 0);
vc.CreateSelfSignature();
vc.AddSignature(intermediate, validUntil);
var vx = new VoterEntity(cs);
IEnumerable<int> questionVota2 = new int[] { 0, 1 };
var votex = vx.Vote(vs.GetVotingMaterial(), vc, new IEnumerable<int>[] { questionVota2 }, null);
vs.Vote(connection, votex);
}
for (int i = 2000; i < 2000 + voters; i++)
{
var vc = new VoterCertificate(Language.English, null, 0);
vc.CreateSelfSignature();
vc.AddSignature(intermediate, validUntil);
var vx = new VoterEntity(cs);
IEnumerable<int> questionVota3 = new int[] { 1, 0 };
var votex = vx.Vote(vs.GetVotingMaterial(), vc, new IEnumerable<int>[] { questionVota3 }, null);
vs.Vote(connection, votex);
}
vs.EndVote();
a1.TallyBegin(vs.GetVotingMaterial());
a2.TallyBegin(vs.GetVotingMaterial());
a3.TallyBegin(vs.GetVotingMaterial());
a4.TallyBegin(vs.GetVotingMaterial());
a5.TallyBegin(vs.GetVotingMaterial());
for (int envelopeIndex = 0; envelopeIndex < vs.GetEnvelopeCount(); envelopeIndex++)
{
a1.TallyAdd(envelopeIndex, vs.GetEnvelope(envelopeIndex), new Progress(null));
a2.TallyAdd(envelopeIndex, vs.GetEnvelope(envelopeIndex), new Progress(null));
a3.TallyAdd(envelopeIndex, vs.GetEnvelope(envelopeIndex), new Progress(null));
a4.TallyAdd(envelopeIndex, vs.GetEnvelope(envelopeIndex), new Progress(null));
a5.TallyAdd(envelopeIndex, vs.GetEnvelope(envelopeIndex), new Progress(null));
}
var pd1 = a1.PartiallyDecipher();
var pd2 = a2.PartiallyDecipher();
var pd3 = a3.PartiallyDecipher();
var pd4 = a4.PartiallyDecipher();
var pd5 = a5.PartiallyDecipher();
vs.DepositPartialDecipher(connection, pd1);
vs.DepositPartialDecipher(connection, pd2);
vs.DepositPartialDecipher(connection, pd3);
vs.DepositPartialDecipher(connection, pd4);
vs.DepositPartialDecipher(connection, pd5);
v1.TallyBegin(vs.GetVotingMaterial(), BaseParameters.StandardProofCount);
for (int envelopeIndex = 0; envelopeIndex < vs.GetEnvelopeCount(); envelopeIndex++)
{
v1.TallyAdd(envelopeIndex, vs.GetEnvelope(envelopeIndex), new Progress(null));
}
for (int authorityIndex = 1; authorityIndex < vs.Parameters.AuthorityCount + 1; authorityIndex++)
{
v1.TallyAddPartialDecipher(vs.GetPartialDecipher(authorityIndex));
}
var res1 = v1.TallyResult;
TimeSpan duration = DateTime.Now.Subtract(start);
Console.WriteLine("Succeded {0}", duration.ToString());
}
