private void RunObliviousTransferParty1oo2Resumed()
{
const int numberOfInvocations = 3;
const int numberOfOptions = 2;
Pair <byte[]>[] options = new Pair <byte[]> [numberOfInvocations];
options = new Pair <byte[]>[]
{
new Pair <byte[]>(TestOptions.Take(numberOfOptions).Select(s => Encoding.ASCII.GetBytes(s)).ToArray()),
new Pair <byte[]>(TestOptions.Take(numberOfOptions).Select(s => Encoding.ASCII.GetBytes(s.ToLower())).ToArray()),
new Pair <byte[]>(TestOptions.Take(numberOfOptions).Select(s => Encoding.ASCII.GetBytes(s.ToUpper())).ToArray()),
};
using (CryptoContext cryptoContext = CryptoContext.CreateDefault())
{
using (ITwoPartyNetworkSession session = TestNetworkSession.EstablishTwoParty())
{
ITwoChoicesObliviousTransferChannel baseOT = new StatelessTwoChoicesObliviousTransferChannel(new InsecureObliviousTransfer(), session.Channel);
ITwoChoicesObliviousTransferChannel obliviousTransfer = new TwoChoicesExtendedObliviousTransferChannel(baseOT, 8, cryptoContext);
if (session.LocalParty.Id == 0)
{
for (int i = 0; i < 2; ++i)
{
obliviousTransfer.SendAsync(options, numberOfInvocations, 6).Wait();
}
}
else
{
PairIndexArray[] allIndices = new[] { new PairIndexArray(new[] { 0, 1, 0 }), new PairIndexArray(new[] { 1, 0, 0 }) };
for (int i = 0; i < 2; ++i)
{
PairIndexArray indices = allIndices[i];
byte[][] results = obliviousTransfer.ReceiveAsync(indices, numberOfInvocations, 6).Result;
Assert.IsNotNull(results, "Result is null.");
Assert.AreEqual(numberOfInvocations, results.Length, "Result does not match the correct number of invocations.");
for (int j = 0; j < numberOfInvocations; ++j)
{
CollectionAssert.AreEqual(
results[j],
options[j][indices[j]],
"Incorrect message content {0} (should be {1}).",
Encoding.ASCII.GetString(results[j]),
Encoding.ASCII.GetString(options[j][indices[j]])
);
}
}
}
}
}
}
private void RunObliviousTransferParty1oo2()
{
const int numberOfInvocations = 3;
const int numberOfOptions = 2;
Pair <byte[]>[] options = new Pair <byte[]> [numberOfInvocations];
options = new Pair <byte[]>[]
{
new Pair <byte[]>(TestOptions.Take(numberOfOptions).Select(s => Encoding.ASCII.GetBytes(s)).ToArray()),
new Pair <byte[]>(TestOptions.Take(numberOfOptions).Select(s => Encoding.ASCII.GetBytes(s.ToLower())).ToArray()),
new Pair <byte[]>(TestOptions.Take(numberOfOptions).Select(s => Encoding.ASCII.GetBytes(s.ToUpper())).ToArray()),
};
using (CryptoContext cryptoContext = CryptoContext.CreateDefault())
{
IStatelessTwoChoicesObliviousTransfer obliviousTransfer = new NaorPinkasObliviousTransfer(
SecurityParameters.CreateDefault768Bit(),
cryptoContext
);
using (ITwoPartyNetworkSession session = TestNetworkSession.EstablishTwoParty())
{
if (session.LocalParty.Id == 0)
{
obliviousTransfer.SendAsync(session.Channel, options, numberOfInvocations, 6).Wait();
}
else
{
PairIndexArray indices = new PairIndexArray(new[] { 0, 1, 0 });
byte[][] results = obliviousTransfer.ReceiveAsync(session.Channel, indices, numberOfInvocations, 6).Result;
Assert.IsNotNull(results, "Result is null.");
Assert.AreEqual(numberOfInvocations, results.Length, "Result does not match the correct number of invocations.");
for (int j = 0; j < numberOfInvocations; ++j)
{
CollectionAssert.AreEqual(
results[j],
options[j][indices[j]],
"Incorrect message content {0} (should be {1}).",
Encoding.ASCII.GetString(results[j]),
Encoding.ASCII.GetString(options[j][indices[j]])
);
}
}
}
}
}
public Task <BitArray> ReceiveAsync(PairIndexArray selectionIndices, int numberOfInvocations)
{
return(_generalOt.ReceiveAsync(selectionIndices, numberOfInvocations, 1).ContinueWith(
task => ConvertReceiveOutputByteToBit(task.Result)
));
}
public Task <byte[][]> ReceiveAsync(IMessageChannel channel, PairIndexArray selectionIndices, int numberOfInvocations, int numberOfMessageBytes)
{
return(ReceiveAsync(channel, selectionIndices.ToArray(), 2, numberOfInvocations, numberOfMessageBytes));
}
public Task <byte[][]> ReceiveAsync(PairIndexArray selectionIndices, int numberOfInvocations, int numberOfMessageBytes)
{
return(_statelessOT.ReceiveAsync(Channel, selectionIndices, numberOfInvocations, numberOfMessageBytes));
}