Double decryption on initial packets

[rsepassi]

It seems that on initial connection, the server decrypts the initial client packet twice, once in picoquic_screen_initial_packet and once again in the normal flow. I can't think of a reason why this should be, so thought I'd flag it.

[huitema]

It is complicated... When we create a new connection context, we need to compute the encryption and decryption keys for the "initial" context. The input processing did create a decryption key, but not the encryption key. It did however decrypt the packet, so there should be no need to decrypt it again -- we need to look at that in detail.