public async Task ConvertUplink(IDuplexPipe client, IDuplexPipe server)
{
var up = parameter.GetCrypto();
var pmp = new ProtocolMessagePipe(server);
var key = CryptoUtils.SSKDF(password, parameter.KeySize);
var salt = new SaltMessage(parameter.NonceSize, true);
await pmp.WriteAsync(salt);
up.Init(key, salt.Salt.ToArray());
Memory <byte> nonce = new byte[parameter.NonceSize];
nonce.Span.Fill(0);
// TODO write salt with data
while (true)
{
var result = await client.Input.ReadAsync();
if (result.IsCanceled || result.IsCompleted)
{
return;
}
// TODO compress into one chunk when possible
foreach (var item in result.Buffer)
{
var mem = server.Output.GetMemory(item.Length);
var len = up.Encrypt(null, item.Span, mem.Span);
server.Output.Advance(len);
}
client.Input.AdvanceTo(result.Buffer.End);
}
}
public async Task ConvertUplink(IDuplexPipe client, IDuplexPipe server)
{
using var up = cryptoParameter.GetCrypto();
var pmp = new ProtocolMessagePipe(server);
var salt = new SaltMessage(16, true);
await pmp.WriteAsync(salt);
var key = new byte[cryptoParameter.KeySize];
HKDF.DeriveKey(HashAlgorithmName.SHA1, mainKey, key, salt.Salt.Span, _ssSubKeyInfo);
up.Init(key, null);
Memory <byte> nonce = new byte[cryptoParameter.NonceSize];
nonce.Span.Fill(0);
// TODO write salt with data
while (true)
{
var result = await client.Input.ReadAsync();
if (result.IsCanceled || result.IsCompleted)
{
return;
}
// TODO compress into one chunk when possible
foreach (var item in result.Buffer)
{
foreach (var i in SplitBigChunk(item))
{
await pmp.WriteAsync(new AeadBlockMessage(up, nonce, cryptoParameter)
{
// in send routine, Data is readonly
Data = MemoryMarshal.AsMemory(i),
});
}
}
client.Input.AdvanceTo(result.Buffer.End);
}
}