public void TestMultiFragment(TestContext ctx, [TestHost] IEncryptionTestHost host)
{
// Padding will push us above the maximum fragment size.
var size = MAX_FRAGMENT_SIZE - host.MinExtraEncryptedBytes + 1;
var encryptedSize = host.GetEncryptedSize(size);
ctx.Assert(encryptedSize, Is.GreaterThan(MAX_FRAGMENT_SIZE));
var buffer = GetBuffer(MultiFragmentName, 0, size);
var output = new TlsStream();
host.EncryptRecord(ContentType.ApplicationData, buffer, output);
ctx.Assert(output.Position, Is.GreaterThanOrEqualTo(size + 2 * host.MinExtraEncryptedBytes + 10), "#2a");
ctx.Assert(output.Position, Is.LessThanOrEqualTo(size + 2 * host.MaxExtraEncryptedBytes + 10), "#2b");
ctx.Assert(output.Offset, Is.EqualTo(0), "#3");
output.Position = 0;
ctx.Assert(output.ReadByte(), Is.EqualTo((byte)ContentType.ApplicationData), "#4a");
ctx.Assert(output.ReadInt16(), Is.EqualTo((short)TlsProtocolCode.Tls12), "#4b");
var firstChunkSize = (int)output.ReadInt16();
ctx.Assert(firstChunkSize, Is.GreaterThanOrEqualTo(MAX_FRAGMENT_SIZE - host.MaxExtraEncryptedBytes - 1), "#4c");
ctx.Assert(firstChunkSize, Is.LessThanOrEqualTo(MAX_FRAGMENT_SIZE), "#4d");
output.Position += firstChunkSize;
ctx.Assert(output.ReadByte(), Is.EqualTo((byte)ContentType.ApplicationData), "#5a");
ctx.Assert(output.ReadInt16(), Is.EqualTo((short)TlsProtocolCode.Tls12), "#5b");
var secondChunkSize = (int)output.ReadInt16();
ctx.Assert(secondChunkSize, Is.GreaterThanOrEqualTo(encryptedSize - firstChunkSize + host.MinExtraEncryptedBytes), "#5c");
ctx.Assert(secondChunkSize, Is.LessThanOrEqualTo(encryptedSize - firstChunkSize + host.MaxExtraEncryptedBytes), "#5d");
output.Position += secondChunkSize;
WriteAndCheckOutput(ctx, MultiFragmentResult, new BufferOffsetSize(output.Buffer, 0, output.Position));
}
public void TestRecord(TestContext ctx, [TestHost] IEncryptionTestHost host)
{
var buffer = GetBuffer(TestDataName);
var output = new TlsStream();
host.EncryptRecord(ContentType.ApplicationData, buffer, output);
ctx.Assert(output.Position, Is.GreaterThanOrEqualTo(buffer.Size + host.MinExtraEncryptedBytes + 5), "#2a");
ctx.Assert(output.Position, Is.LessThanOrEqualTo(buffer.Size + host.MaxExtraEncryptedBytes + 5), "#2b");
var encryptedSize = host.GetEncryptedSize(buffer.Size);
ctx.Assert(output.Position, Is.EqualTo(encryptedSize + 5), "#2c");
output.Position = 0;
ctx.Assert(output.ReadByte(), Is.EqualTo((byte)ContentType.ApplicationData), "#4a");
ctx.Assert(output.ReadInt16(), Is.EqualTo((short)TlsProtocolCode.Tls12), "#4b");
ctx.Assert(output.ReadInt16(), Is.EqualTo((short)encryptedSize), "#4c");
output.Position += encryptedSize;
WriteAndCheckOutput(ctx, RecordResult, new BufferOffsetSize(output.Buffer, 0, output.Position));
}
