* Update versions of many dependencies
* Bump version of rand
* Updates for changed APIs in rand, ring, and webpki
* Replace references to `snow::Session`
`Session` no longer exists in `snow` but the replacement is two structs `HandshakeState` and `TransportState`
Something will have to be done to harmonize `NoiseOutput.session`
* Add precise type for UnparsedPublicKey
* Update data structures/functions to match new snow's API
* Delete diff.diff
Remove accidentally committed diff file
* Remove commented lines in identity/rsa.rs
* Bump libsecp256k1 to 0.3.1
* Rework the transport upgrade API.
ALthough transport upgrades must follow a specific pattern
in order fot the resulting transport to be usable with a
`Network` or `Swarm`, that pattern is currently not well
reflected in the transport upgrade API. Rather, transport
upgrades are rather laborious and involve non-trivial code
duplication.
This commit introduces a `transport::upgrade::Builder` that is
obtained from `Transport::upgrade`. The `Builder` encodes the
previously implicit rules for transport upgrades:
1. Authentication upgrades must happen first.
2. Any number of upgrades may follow.
3. A multiplexer upgrade must happen last.
Since multiplexing is the last (regular) transport upgrade (because
that upgrade yields a `StreamMuxer` which is no longer a `AsyncRead`
/ `AsyncWrite` resource, which the upgrade process is based on),
the upgrade starts with `Transport::upgrade` and ends with
`Builder::multiplex`, which drops back down to the `Transport`,
providing a fluent API.
Authentication and multiplexer upgrades must furthermore adhere
to a minimal contract w.r.t their outputs:
1. An authentication upgrade is given an (async) I/O resource `C`
and must produce a pair `(I, D)` where `I: ConnectionInfo` and
`D` is a new (async) I/O resource `D`.
2. A multiplexer upgrade is given an (async) I/O resource `C`
and must produce a `M: StreamMuxer`.
To that end, two changes to the `secio` and `noise` protocols have been
made:
1. The `secio` upgrade now outputs a pair of `(PeerId, SecioOutput)`.
The former implements `ConnectionInfo` and the latter `AsyncRead` /
`AsyncWrite`, fulfilling the `Builder` contract.
2. A new `NoiseAuthenticated` upgrade has been added that wraps around
any noise upgrade (i.e. `NoiseConfig`) and has an output of
`(PeerId, NoiseOutput)`, i.e. it checks if the `RemoteIdentity` from
the handshake output is an `IdentityKey`, failing if that is not the
case. This is the standard upgrade procedure one wants for integrating
noise with libp2p-core/swarm.
* Cleanup
* Add a new integration test.
* Add missing license.
* Integrate use of identity keys into libp2p-noise.
In order to make libp2p-noise usable with a `Swarm`, which requires a
`Transport::Output` that is a pair of a peer ID and an implementation
of `StreamMuxer`, it is necessary to bridge the gap between static
DH public keys and public identity keys from which peer IDs are derived.
Because the DH static keys and the identity keys need not be
related, it is thus generally necessary that the public identity keys are
exchanged as part of the Noise handshake, which the Noise protocol
accomodates for through the use of handshake message payloads.
The implementation of the existing (IK, IX, XX) handshake patterns is thus
changed to send the public identity keys in the handshake payloads.
Additionally, to facilitate the use of any identity keypair with Noise
handshakes, the static DH public keys are signed using the identity
keypairs and the signatures sent alongside the public identity key
in handshake payloads, unless the static DH public key is "linked"
to the public identity key by other means, e.g. when an Ed25519 identity
keypair is (re)used as an X25519 keypair.
* libp2p-noise doesn't build for wasm.
Thus the development transport needs to be still constructed with secio
for transport security when building for wasm.
* Documentation tweaks.
* For consistency, avoid wildcard enum imports.
* For consistency, avoid wildcard enum imports.
* Slightly simplify io:🤝:State::finish.
* Simplify creation of 2-byte arrays.
* Remove unnecessary cast and obey 100 char line limit.
* Update protocols/noise/src/protocol.rs
Co-Authored-By: romanb <romanb@users.noreply.github.com>
* Address more review comments.
* Cosmetics
* Cosmetics
* Give authentic DH keypairs a distinct type.
This has a couple of advantages:
* Signing the DH public key only needs to happen once, before
creating a `NoiseConfig` for an authenticated handshake.
* The identity keypair only needs to be borrowed and can be
dropped if it is not used further outside of the Noise
protocol, since it is no longer needed during Noise handshakes.
* It is explicit in the construction of a `NoiseConfig` for
a handshake pattern, whether it operates with a plain `Keypair`
or a keypair that is authentic w.r.t. a public identity key
and future handshake patterns may be built with either.
* The function signatures for constructing `NoiseConfig`s for
handshake patterns are simplified and a few unnecessary trait
bounds removed.
* Post-merge corrections.
* Add note on experimental status of libp2p-noise.
