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));
}