Hi all, Thanks (once again) to Vincent's awesome tls package, I've just added experimental support to Warp for SSL connections. The basic idea is to create an abstraction within Warp called a Connection, which handles sending and receiving data. This abstraction provides for vectored and non-vectored I/O, as well as enumerator-based I/O. In other words, it supports all of the features Warp already uses. Then a separate package, warp-tls, provides an alternate way of creating a Connection that uses the tls package instead of a raw socket. I've put this code up in a separate branch[1]. The one piece of the puzzle most definitely not implemented yet is proper timeout support. I'm waiting till Kazu and I come up with some clarity on the recent slowloris discussion before implementing the timeout code for tls. Also, I'm sure some thing could be more efficient, but it's certainly working. I've included a pong.hs demo, as well as a self-signed private key and certificate, so in order to test this out, you should need to: 1. Clone the repo 2. "cabal install" warp 3. "runghc pong.hs" inside the warp-tls package Another change that likely makes sense is to improve the TLSSettings setup so it doesn't need to read the key and certificate from a file. I'm definitely open to other suggestions. Also, I don't have a particular use case for this right now, it was just something sitting on my TODO list and was relatively easy to implement, so I decided to take a crack at it. Michael [1] https://github.com/yesodweb/wai/tree/warp-tls