noise 0.2.0 (latest) · OCaml Package

HandshakeState as defined in v34 5.3.

type t

val make : 
  name:string ->
  pattern:Pattern.t ->
  is_initiator:bool ->
  hash:Hash.t ->
  dh:Dh.t ->
  cipher:Cipher.t ->
  s:Private_key.t option ->
  rs:Public_key.t option ->
  e:Private_key.t option ->
  psk:Cstruct.t option ->
  t

val e_pub : t -> Public_key.t option

The public key corresponding to e.

val set_re : t -> Public_key.t -> (t, string) result

Set re, returning an error if was set before.

val s_pub : t -> Public_key.t option

The public key corresponding to s.

val set_rs : t -> Public_key.t -> (t, string) result

Set rs, returning an error if was set before.

val is_initiator : t -> bool

val pattern : t -> Pattern.t

type key_type =

| Static
| Ephemeral

val mix_hash : t -> Cstruct.t -> t

Delegate mix_hash on the underlying Symmetric_state.t.

val mix_hash_and_psk : t -> Public_key.t -> t

Call mix_hash, and if a PSK is used, call mix_key as well.

val mix_key : t -> Cstruct.t -> t

Call mix_key on the underlying Symmetric_state.t and initialize the Cipher_state.t with the result.

val mix_dh_key : t -> local:key_type -> remote:key_type -> (t, string) result

Perform a key exchange using the local and remote key types, and call mix_key using the result.

val mix_key_and_hash_psk : t -> (t, string) result

Call Symmetric_state.mix_key_and_hash with the PSK.

val decrypt_and_hash : t -> Cstruct.t -> (t * Cstruct.t, string) result

val encrypt_and_hash : t -> Cstruct.t -> (t * Cstruct.t, string) result

val handshake_hash : t -> Cstruct.t option

Get the handshake hash, if the handshake is over.

val split_dh : ?clear:bool -> t -> Cstruct.t -> Public_key.t * Cstruct.t

Extract a DH key at the beginning of the specified buffer. The key size depends on whether it is expected to be encrypted or in clear.

if clear is true (it defaults to false), assume it is clear
otherwise, depends on Cipher_state.has_key

val setup_transport : t -> t

Call Symmetric_state.split and setup a one-way or two-way transport depending on the pattern.

val receive_transport : t -> Cstruct.t -> (t * Cstruct.t, string) result

Receive a message, based on the configured transport.

val send_transport : t -> Cstruct.t -> (t * Cstruct.t, string) result

Send a message, based on the configured transport.

type state =

| Handshake_step of Pattern.step list * bool
(*
Next steps, and is it the last message
*)
| Transport
(*
Handshake is over
*)

val next : t -> t * state

Determine the next step, "popping" the next list of handshake steps.

package noise