Fix the public key format in the IdentifyInfo (#264)

* Fix the public key format in the IdentifyInfo

* Move PublicKey type to core

* Oops

core/src/lib.rs

@@ -226,6 +226,7 @@ pub extern crate multiaddr;
 
 mod connection_reuse;
 mod peer_id;
+mod public_key;
 
 pub mod either;
 pub mod muxing;
@@ -236,7 +237,8 @@ pub mod upgrade;
 pub use self::connection_reuse::ConnectionReuse;
 pub use self::multiaddr::{AddrComponent, Multiaddr};
 pub use self::muxing::StreamMuxer;
-pub use self::peer_id::{PeerId, PublicKeyBytes, PublicKeyBytesSlice};
+pub use self::peer_id::PeerId;
+pub use self::public_key::{PublicKey, PublicKeyBytes, PublicKeyBytesSlice};
 pub use self::swarm::{swarm, SwarmController, SwarmFuture};
 pub use self::transport::{MuxedTransport, Transport};
 pub use self::upgrade::{ConnectionUpgrade, Endpoint};

core/src/peer_id.rs

@@ -21,56 +21,7 @@
 use bs58;
 use multihash;
 use std::{fmt, str::FromStr};
-
-/// The raw bytes of a public key.
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub struct PublicKeyBytes(pub Vec<u8>);
-
-impl PublicKeyBytes {
-    /// Turns this into a `PublicKeyBytesSlice`.
-    #[inline]
-    pub fn as_slice(&self) -> PublicKeyBytesSlice {
-        PublicKeyBytesSlice(&self.0)
-    }
-
-    /// Turns this into a `PeerId`.
-    #[inline]
-    pub fn to_peer_id(&self) -> PeerId {
-        self.as_slice().into()
-    }
-}
-
-/// The raw bytes of a public key.
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
-pub struct PublicKeyBytesSlice<'a>(pub &'a [u8]);
-
-impl<'a> PublicKeyBytesSlice<'a> {
-    /// Turns this into a `PublicKeyBytes`.
-    #[inline]
-    pub fn to_owned(&self) -> PublicKeyBytes {
-        PublicKeyBytes(self.0.to_owned())
-    }
-
-    /// Turns this into a `PeerId`.
-    #[inline]
-    pub fn to_peer_id(&self) -> PeerId {
-        PeerId::from_public_key(*self)
-    }
-}
-
-impl<'a> PartialEq<PublicKeyBytes> for PublicKeyBytesSlice<'a> {
-    #[inline]
-    fn eq(&self, other: &PublicKeyBytes) -> bool {
-        self.0 == &other.0[..]
-    }
-}
-
-impl<'a> PartialEq<PublicKeyBytesSlice<'a>> for PublicKeyBytes {
-    #[inline]
-    fn eq(&self, other: &PublicKeyBytesSlice<'a>) -> bool {
-        self.0 == &other.0[..]
-    }
-}
+use {PublicKeyBytes, PublicKeyBytesSlice};
 
 /// Identifier of a peer of the network.
 ///

core/src/public_key.rs

@@ -0,0 +1,126 @@
+// Copyright 2018 Parity Technologies (UK) Ltd.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+
+use PeerId;
+
+/// Public key used by the remote.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub enum PublicKey {
+    /// DER format.
+    Rsa(Vec<u8>),
+    /// Format = ???
+    // TODO: ^
+    Ed25519(Vec<u8>),
+    /// Format = ???
+    // TODO: ^
+    Secp256k1(Vec<u8>),
+}
+
+impl PublicKey {
+    /// Turns this public key into a raw representation.
+    #[inline]
+    pub fn as_raw(&self) -> PublicKeyBytesSlice {
+        match self {
+            PublicKey::Rsa(ref data) => PublicKeyBytesSlice(data),
+            PublicKey::Ed25519(ref data) => PublicKeyBytesSlice(data),
+            PublicKey::Secp256k1(ref data) => PublicKeyBytesSlice(data),
+        }
+    }
+
+    /// Turns this public key into a raw representation.
+    #[inline]
+    pub fn into_raw(self) -> PublicKeyBytes {
+        match self {
+            PublicKey::Rsa(data) => PublicKeyBytes(data),
+            PublicKey::Ed25519(data) => PublicKeyBytes(data),
+            PublicKey::Secp256k1(data) => PublicKeyBytes(data),
+        }
+    }
+
+    /// Builds a `PeerId` corresponding to the public key of the node.
+    #[inline]
+    pub fn to_peer_id(&self) -> PeerId {
+        self.as_raw().into()
+    }
+}
+
+impl From<PublicKey> for PeerId {
+    #[inline]
+    fn from(key: PublicKey) -> PeerId {
+        key.to_peer_id()
+    }
+}
+
+impl From<PublicKey> for PublicKeyBytes {
+    #[inline]
+    fn from(key: PublicKey) -> PublicKeyBytes {
+        key.into_raw()
+    }
+}
+
+/// The raw bytes of a public key.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct PublicKeyBytes(pub Vec<u8>);
+
+impl PublicKeyBytes {
+    /// Turns this into a `PublicKeyBytesSlice`.
+    #[inline]
+    pub fn as_slice(&self) -> PublicKeyBytesSlice {
+        PublicKeyBytesSlice(&self.0)
+    }
+
+    /// Turns this into a `PeerId`.
+    #[inline]
+    pub fn to_peer_id(&self) -> PeerId {
+        self.as_slice().into()
+    }
+}
+
+/// The raw bytes of a public key.
+#[derive(Debug, Copy, Clone, PartialEq, Eq)]
+pub struct PublicKeyBytesSlice<'a>(pub &'a [u8]);
+
+impl<'a> PublicKeyBytesSlice<'a> {
+    /// Turns this into a `PublicKeyBytes`.
+    #[inline]
+    pub fn to_owned(&self) -> PublicKeyBytes {
+        PublicKeyBytes(self.0.to_owned())
+    }
+
+    /// Turns this into a `PeerId`.
+    #[inline]
+    pub fn to_peer_id(&self) -> PeerId {
+        PeerId::from_public_key(*self)
+    }
+}
+
+impl<'a> PartialEq<PublicKeyBytes> for PublicKeyBytesSlice<'a> {
+    #[inline]
+    fn eq(&self, other: &PublicKeyBytes) -> bool {
+        self.0 == &other.0[..]
+    }
+}
+
+impl<'a> PartialEq<PublicKeyBytesSlice<'a>> for PublicKeyBytes {
+    #[inline]
+    fn eq(&self, other: &PublicKeyBytesSlice<'a>) -> bool {
+        self.0 == &other.0[..]
+    }
+}

identify/keys.proto

@@ -0,0 +1,15 @@
+enum KeyType {
+  RSA = 0;
+  Ed25519 = 1;
+  Secp256k1 = 2;
+}
+
+message PublicKey {
+  required KeyType Type = 1;
+  required bytes Data = 2;
+}
+
+message PrivateKey {
+  required KeyType Type = 1;
+  required bytes Data = 2;
+}

identify/regen_structs_proto.sh

@@ -7,6 +7,8 @@ sudo docker run --rm -v `pwd`:/usr/code:z -w /usr/code rust /bin/bash -c " \
     apt-get update; \
     apt-get install -y protobuf-compiler; \
     cargo install --version 1 protobuf; \
-    protoc --rust_out . structs.proto"
+    protoc --rust_out . structs.proto; \
+    protoc --rust_out . keys.proto"
 
 mv -f structs.rs ./src/structs_proto.rs
+mv -f keys.rs ./src/keys_proto.rs

identify/src/keys_proto.rs

@@ -0,0 +1,593 @@
+// This file is generated. Do not edit
+// @generated
+
+// https://github.com/Manishearth/rust-clippy/issues/702
+#![allow(unknown_lints)]
+#![allow(clippy)]
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+
+#![allow(box_pointers)]
+#![allow(dead_code)]
+#![allow(missing_docs)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(trivial_casts)]
+#![allow(unsafe_code)]
+#![allow(unused_imports)]
+#![allow(unused_results)]
+
+use protobuf::Message as Message_imported_for_functions;
+use protobuf::ProtobufEnum as ProtobufEnum_imported_for_functions;
+
+#[derive(PartialEq,Clone,Default)]
+pub struct PublicKey {
+    // message fields
+    Type: ::std::option::Option<KeyType>,
+    Data: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for PublicKey {}
+
+impl PublicKey {
+    pub fn new() -> PublicKey {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static PublicKey {
+        static mut instance: ::protobuf::lazy::Lazy<PublicKey> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const PublicKey,
+        };
+        unsafe {
+            instance.get(PublicKey::new)
+        }
+    }
+
+    // required .KeyType Type = 1;
+
+    pub fn clear_Type(&mut self) {
+        self.Type = ::std::option::Option::None;
+    }
+
+    pub fn has_Type(&self) -> bool {
+        self.Type.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_Type(&mut self, v: KeyType) {
+        self.Type = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_Type(&self) -> KeyType {
+        self.Type.unwrap_or(KeyType::RSA)
+    }
+
+    fn get_Type_for_reflect(&self) -> &::std::option::Option<KeyType> {
+        &self.Type
+    }
+
+    fn mut_Type_for_reflect(&mut self) -> &mut ::std::option::Option<KeyType> {
+        &mut self.Type
+    }
+
+    // required bytes Data = 2;
+
+    pub fn clear_Data(&mut self) {
+        self.Data.clear();
+    }
+
+    pub fn has_Data(&self) -> bool {
+        self.Data.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_Data(&mut self, v: ::std::vec::Vec<u8>) {
+        self.Data = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_Data(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.Data.is_none() {
+            self.Data.set_default();
+        }
+        self.Data.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_Data(&mut self) -> ::std::vec::Vec<u8> {
+        self.Data.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_Data(&self) -> &[u8] {
+        match self.Data.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_Data_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.Data
+    }
+
+    fn mut_Data_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.Data
+    }
+}
+
+impl ::protobuf::Message for PublicKey {
+    fn is_initialized(&self) -> bool {
+        if self.Type.is_none() {
+            return false;
+        }
+        if self.Data.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    ::protobuf::rt::read_proto2_enum_with_unknown_fields_into(wire_type, is, &mut self.Type, 1, &mut self.unknown_fields)?
+                },
+                2 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.Data)?;
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.Type {
+            my_size += ::protobuf::rt::enum_size(1, v);
+        }
+        if let Some(ref v) = self.Data.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(2, &v);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.Type {
+            os.write_enum(1, v.value())?;
+        }
+        if let Some(ref v) = self.Data.as_ref() {
+            os.write_bytes(2, &v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for PublicKey {
+    fn new() -> PublicKey {
+        PublicKey::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<PublicKey>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeEnum<KeyType>>(
+                    "Type",
+                    PublicKey::get_Type_for_reflect,
+                    PublicKey::mut_Type_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "Data",
+                    PublicKey::get_Data_for_reflect,
+                    PublicKey::mut_Data_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<PublicKey>(
+                    "PublicKey",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for PublicKey {
+    fn clear(&mut self) {
+        self.clear_Type();
+        self.clear_Data();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for PublicKey {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for PublicKey {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct PrivateKey {
+    // message fields
+    Type: ::std::option::Option<KeyType>,
+    Data: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for PrivateKey {}
+
+impl PrivateKey {
+    pub fn new() -> PrivateKey {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static PrivateKey {
+        static mut instance: ::protobuf::lazy::Lazy<PrivateKey> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const PrivateKey,
+        };
+        unsafe {
+            instance.get(PrivateKey::new)
+        }
+    }
+
+    // required .KeyType Type = 1;
+
+    pub fn clear_Type(&mut self) {
+        self.Type = ::std::option::Option::None;
+    }
+
+    pub fn has_Type(&self) -> bool {
+        self.Type.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_Type(&mut self, v: KeyType) {
+        self.Type = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_Type(&self) -> KeyType {
+        self.Type.unwrap_or(KeyType::RSA)
+    }
+
+    fn get_Type_for_reflect(&self) -> &::std::option::Option<KeyType> {
+        &self.Type
+    }
+
+    fn mut_Type_for_reflect(&mut self) -> &mut ::std::option::Option<KeyType> {
+        &mut self.Type
+    }
+
+    // required bytes Data = 2;
+
+    pub fn clear_Data(&mut self) {
+        self.Data.clear();
+    }
+
+    pub fn has_Data(&self) -> bool {
+        self.Data.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_Data(&mut self, v: ::std::vec::Vec<u8>) {
+        self.Data = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_Data(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.Data.is_none() {
+            self.Data.set_default();
+        }
+        self.Data.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_Data(&mut self) -> ::std::vec::Vec<u8> {
+        self.Data.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_Data(&self) -> &[u8] {
+        match self.Data.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_Data_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.Data
+    }
+
+    fn mut_Data_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.Data
+    }
+}
+
+impl ::protobuf::Message for PrivateKey {
+    fn is_initialized(&self) -> bool {
+        if self.Type.is_none() {
+            return false;
+        }
+        if self.Data.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    ::protobuf::rt::read_proto2_enum_with_unknown_fields_into(wire_type, is, &mut self.Type, 1, &mut self.unknown_fields)?
+                },
+                2 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.Data)?;
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.Type {
+            my_size += ::protobuf::rt::enum_size(1, v);
+        }
+        if let Some(ref v) = self.Data.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(2, &v);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.Type {
+            os.write_enum(1, v.value())?;
+        }
+        if let Some(ref v) = self.Data.as_ref() {
+            os.write_bytes(2, &v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for PrivateKey {
+    fn new() -> PrivateKey {
+        PrivateKey::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<PrivateKey>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeEnum<KeyType>>(
+                    "Type",
+                    PrivateKey::get_Type_for_reflect,
+                    PrivateKey::mut_Type_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "Data",
+                    PrivateKey::get_Data_for_reflect,
+                    PrivateKey::mut_Data_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<PrivateKey>(
+                    "PrivateKey",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for PrivateKey {
+    fn clear(&mut self) {
+        self.clear_Type();
+        self.clear_Data();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for PrivateKey {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for PrivateKey {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(Clone,PartialEq,Eq,Debug,Hash)]
+pub enum KeyType {
+    RSA = 0,
+    Ed25519 = 1,
+    Secp256k1 = 2,
+}
+
+impl ::protobuf::ProtobufEnum for KeyType {
+    fn value(&self) -> i32 {
+        *self as i32
+    }
+
+    fn from_i32(value: i32) -> ::std::option::Option<KeyType> {
+        match value {
+            0 => ::std::option::Option::Some(KeyType::RSA),
+            1 => ::std::option::Option::Some(KeyType::Ed25519),
+            2 => ::std::option::Option::Some(KeyType::Secp256k1),
+            _ => ::std::option::Option::None
+        }
+    }
+
+    fn values() -> &'static [Self] {
+        static values: &'static [KeyType] = &[
+            KeyType::RSA,
+            KeyType::Ed25519,
+            KeyType::Secp256k1,
+        ];
+        values
+    }
+
+    fn enum_descriptor_static(_: ::std::option::Option<KeyType>) -> &'static ::protobuf::reflect::EnumDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::EnumDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::EnumDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                ::protobuf::reflect::EnumDescriptor::new("KeyType", file_descriptor_proto())
+            })
+        }
+    }
+}
+
+impl ::std::marker::Copy for KeyType {
+}
+
+impl ::protobuf::reflect::ProtobufValue for KeyType {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Enum(self.descriptor())
+    }
+}
+
+static file_descriptor_proto_data: &'static [u8] = b"\
+    \n\nkeys.proto\"=\n\tPublicKey\x12\x1c\n\x04Type\x18\x01\x20\x02(\x0e2\
+    \x08.KeyTypeR\x04type\x12\x12\n\x04Data\x18\x02\x20\x02(\x0cR\x04data\">\
+    \n\nPrivateKey\x12\x1c\n\x04Type\x18\x01\x20\x02(\x0e2\x08.KeyTypeR\x04t\
+    ype\x12\x12\n\x04Data\x18\x02\x20\x02(\x0cR\x04data*.\n\x07KeyType\x12\
+    \x07\n\x03RSA\x10\0\x12\x0b\n\x07Ed25519\x10\x01\x12\r\n\tSecp256k1\x10\
+    \x02J\xdf\x03\n\x06\x12\x04\0\0\x0e\x01\n\n\n\x02\x05\0\x12\x04\0\0\x04\
+    \x01\n\n\n\x03\x05\0\x01\x12\x03\0\x05\x0c\n\x0b\n\x04\x05\0\x02\0\x12\
+    \x03\x01\x02\n\n\x0c\n\x05\x05\0\x02\0\x01\x12\x03\x01\x02\x05\n\x0c\n\
+    \x05\x05\0\x02\0\x02\x12\x03\x01\x08\t\n\x0b\n\x04\x05\0\x02\x01\x12\x03\
+    \x02\x02\x0e\n\x0c\n\x05\x05\0\x02\x01\x01\x12\x03\x02\x02\t\n\x0c\n\x05\
+    \x05\0\x02\x01\x02\x12\x03\x02\x0c\r\n\x0b\n\x04\x05\0\x02\x02\x12\x03\
+    \x03\x02\x10\n\x0c\n\x05\x05\0\x02\x02\x01\x12\x03\x03\x02\x0b\n\x0c\n\
+    \x05\x05\0\x02\x02\x02\x12\x03\x03\x0e\x0f\n\n\n\x02\x04\0\x12\x04\x06\0\
+    \t\x01\n\n\n\x03\x04\0\x01\x12\x03\x06\x08\x11\n\x0b\n\x04\x04\0\x02\0\
+    \x12\x03\x07\x02\x1c\n\x0c\n\x05\x04\0\x02\0\x04\x12\x03\x07\x02\n\n\x0c\
+    \n\x05\x04\0\x02\0\x06\x12\x03\x07\x0b\x12\n\x0c\n\x05\x04\0\x02\0\x01\
+    \x12\x03\x07\x13\x17\n\x0c\n\x05\x04\0\x02\0\x03\x12\x03\x07\x1a\x1b\n\
+    \x0b\n\x04\x04\0\x02\x01\x12\x03\x08\x02\x1a\n\x0c\n\x05\x04\0\x02\x01\
+    \x04\x12\x03\x08\x02\n\n\x0c\n\x05\x04\0\x02\x01\x05\x12\x03\x08\x0b\x10\
+    \n\x0c\n\x05\x04\0\x02\x01\x01\x12\x03\x08\x11\x15\n\x0c\n\x05\x04\0\x02\
+    \x01\x03\x12\x03\x08\x18\x19\n\n\n\x02\x04\x01\x12\x04\x0b\0\x0e\x01\n\n\
+    \n\x03\x04\x01\x01\x12\x03\x0b\x08\x12\n\x0b\n\x04\x04\x01\x02\0\x12\x03\
+    \x0c\x02\x1c\n\x0c\n\x05\x04\x01\x02\0\x04\x12\x03\x0c\x02\n\n\x0c\n\x05\
+    \x04\x01\x02\0\x06\x12\x03\x0c\x0b\x12\n\x0c\n\x05\x04\x01\x02\0\x01\x12\
+    \x03\x0c\x13\x17\n\x0c\n\x05\x04\x01\x02\0\x03\x12\x03\x0c\x1a\x1b\n\x0b\
+    \n\x04\x04\x01\x02\x01\x12\x03\r\x02\x1a\n\x0c\n\x05\x04\x01\x02\x01\x04\
+    \x12\x03\r\x02\n\n\x0c\n\x05\x04\x01\x02\x01\x05\x12\x03\r\x0b\x10\n\x0c\
+    \n\x05\x04\x01\x02\x01\x01\x12\x03\r\x11\x15\n\x0c\n\x05\x04\x01\x02\x01\
+    \x03\x12\x03\r\x18\x19\
+";
+
+static mut file_descriptor_proto_lazy: ::protobuf::lazy::Lazy<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::lazy::Lazy {
+    lock: ::protobuf::lazy::ONCE_INIT,
+    ptr: 0 as *const ::protobuf::descriptor::FileDescriptorProto,
+};
+
+fn parse_descriptor_proto() -> ::protobuf::descriptor::FileDescriptorProto {
+    ::protobuf::parse_from_bytes(file_descriptor_proto_data).unwrap()
+}
+
+pub fn file_descriptor_proto() -> &'static ::protobuf::descriptor::FileDescriptorProto {
+    unsafe {
+        file_descriptor_proto_lazy.get(|| {
+            parse_descriptor_proto()
+        })
+    }
+}

identify/src/lib.rs

@@ -77,9 +77,11 @@ extern crate tokio_codec;
 extern crate tokio_io;
 extern crate varint;
 
-pub use self::protocol::{IdentifyInfo, IdentifyOutput, IdentifyProtocolConfig, IdentifySender};
+pub use self::protocol::{IdentifyInfo, IdentifyOutput};
+pub use self::protocol::{IdentifyProtocolConfig, IdentifySender};
 pub use self::transport::IdentifyTransport;
 
+mod keys_proto;
 mod protocol;
 mod structs_proto;
 mod transport;

identify/src/protocol.rs

@@ -20,7 +20,8 @@
 
 use bytes::{Bytes, BytesMut};
 use futures::{future, Future, Sink, Stream};
-use libp2p_core::{ConnectionUpgrade, Endpoint, PublicKeyBytes};
+use keys_proto::{KeyType as KeyTypeProtobuf, PublicKey as PublicKeyProtobuf};
+use libp2p_core::{ConnectionUpgrade, Endpoint, PublicKey};
 use multiaddr::Multiaddr;
 use protobuf::Message as ProtobufMessage;
 use protobuf::parse_from_bytes as protobuf_parse_from_bytes;
@@ -40,6 +41,7 @@ pub struct IdentifyProtocolConfig;
 pub enum IdentifyOutput<T> {
     /// We obtained information from the remote. Happens when we are the dialer.
     RemoteInfo {
+        /// Information about the remote.
         info: IdentifyInfo,
         /// Address the remote sees for us.
         observed_addr: Multiaddr,
@@ -77,10 +79,27 @@ where
             .map(|addr| addr.into_bytes())
             .collect();
 
+        let mut public_key = PublicKeyProtobuf::new();
+        match info.public_key {
+            PublicKey::Rsa(data) => {
+                public_key.set_Type(KeyTypeProtobuf::RSA);
+                public_key.set_Data(data);
+            },
+            PublicKey::Ed25519(data) => {
+                public_key.set_Type(KeyTypeProtobuf::Ed25519);
+                public_key.set_Data(data);
+            },
+            PublicKey::Secp256k1(data) => {
+                public_key.set_Type(KeyTypeProtobuf::Secp256k1);
+                public_key.set_Data(data);
+            },
+        };
+
         let mut message = structs_proto::Identify::new();
         message.set_agentVersion(info.agent_version);
         message.set_protocolVersion(info.protocol_version);
-        message.set_publicKey(info.public_key.0);
+        message.set_publicKey(public_key.write_to_bytes()
+            .expect("protobuf writing should always be valid"));
         message.set_listenAddrs(listen_addrs);
         message.set_observedAddr(observed_addr.to_bytes());
         message.set_protocols(RepeatedField::from_vec(info.protocols));
@@ -98,7 +117,7 @@ where
 #[derive(Debug, Clone)]
 pub struct IdentifyInfo {
     /// Public key of the node.
-    pub public_key: PublicKeyBytes,
+    pub public_key: PublicKey,
     /// Version of the "global" protocol, eg. `ipfs/1.0.0` or `polkadot/1.0.0`.
     pub protocol_version: String,
     /// Name and version of the client. Can be thought as similar to the `User-Agent` header
@@ -206,8 +225,28 @@ fn parse_proto_msg(msg: BytesMut) -> Result<(IdentifyInfo, Multiaddr), IoError>
 
             let observed_addr = bytes_to_multiaddr(msg.take_observedAddr())?;
 
+            let pubkey = {
+                let mut pubkey = protobuf_parse_from_bytes::<PublicKeyProtobuf>(msg.get_publicKey())
+                    .map_err(|err| {
+                        debug!("failed to parse remote's infos' pubkey protobuf");
+                        IoError::new(IoErrorKind::InvalidData, err)
+                    })?;
+
+                match pubkey.get_Type() {
+                    KeyTypeProtobuf::RSA => {
+                        PublicKey::Rsa(pubkey.take_Data())
+                    },
+                    KeyTypeProtobuf::Ed25519 => {
+                        PublicKey::Ed25519(pubkey.take_Data())
+                    },
+                    KeyTypeProtobuf::Secp256k1 => {
+                        PublicKey::Secp256k1(pubkey.take_Data())
+                    },
+                }
+            };
+
             let info = IdentifyInfo {
-                public_key: PublicKeyBytes(msg.take_publicKey()),
+                public_key: pubkey,
                 protocol_version: msg.take_protocolVersion(),
                 agent_version: msg.take_agentVersion(),
                 listen_addrs: listen_addrs,
@@ -229,7 +268,7 @@ mod tests {
     use self::libp2p_tcp_transport::TcpConfig;
     use self::tokio_core::reactor::Core;
     use futures::{Future, Stream};
-    use libp2p_core::{Transport, PublicKeyBytes};
+    use libp2p_core::{PublicKey, PublicKeyBytesSlice, Transport};
     use std::sync::mpsc;
     use std::thread;
     use {IdentifyInfo, IdentifyOutput, IdentifyProtocolConfig};
@@ -257,7 +296,7 @@ mod tests {
                 .and_then(|identify| match identify {
                     IdentifyOutput::Sender { sender, .. } => sender.send(
                         IdentifyInfo {
-                            public_key: PublicKeyBytes(vec![1, 2, 3, 4, 5, 7]),
+                            public_key: PublicKey::Ed25519(vec![1, 2, 3, 4, 5, 7]),
                             protocol_version: "proto_version".to_owned(),
                             agent_version: "agent_version".to_owned(),
                             listen_addrs: vec![
@@ -289,7 +328,7 @@ mod tests {
                         observed_addr,
                         "/ip4/100.101.102.103/tcp/5000".parse().unwrap()
                     );
-                    assert_eq!(info.public_key.0, &[1, 2, 3, 4, 5, 7]);
+                    assert_eq!(info.public_key.as_raw(), PublicKeyBytesSlice(&[1, 2, 3, 4, 5, 7]));
                     assert_eq!(info.protocol_version, "proto_version");
                     assert_eq!(info.agent_version, "agent_version");
                     assert_eq!(

secio/src/handshake.rs

@@ -28,6 +28,7 @@ use futures::future;
 use futures::sink::Sink;
 use futures::stream::Stream;
 use keys_proto::{KeyType as KeyTypeProtobuf, PublicKey as PublicKeyProtobuf};
+use libp2p_core::PublicKey;
 use protobuf::Message as ProtobufMessage;
 use protobuf::parse_from_bytes as protobuf_parse_from_bytes;
 use ring::agreement::EphemeralPrivateKey;
@@ -45,7 +46,7 @@ use structs_proto::{Exchange, Propose};
 use tokio_io::codec::length_delimited;
 use tokio_io::{AsyncRead, AsyncWrite};
 use untrusted::Input as UntrustedInput;
-use {SecioKeyPair, SecioKeyPairInner, SecioPublicKey};
+use {SecioKeyPair, SecioKeyPairInner};
 
 /// Performs a handshake on the given socket.
 ///
@@ -58,7 +59,7 @@ use {SecioKeyPair, SecioKeyPairInner, SecioPublicKey};
 pub fn handshake<'a, S: 'a>(
     socket: S,
     local_key: SecioKeyPair,
-) -> Box<Future<Item = (FullCodec<S>, SecioPublicKey), Error = SecioError> + 'a>
+) -> Box<Future<Item = (FullCodec<S>, PublicKey), Error = SecioError> + 'a>
 where
     S: AsyncRead + AsyncWrite,
 {
@@ -81,7 +82,7 @@ where
         // The remote proposition's raw bytes.
         remote_proposition_bytes: BytesMut,
         remote_public_key_in_protobuf_bytes: Vec<u8>,
-        remote_public_key: Option<SecioPublicKey>,
+        remote_public_key: Option<PublicKey>,
 
         // The remote peer's version of `local_nonce`.
         // If the NONCE size is actually part of the protocol, we can change this to a fixed-size
@@ -214,13 +215,13 @@ where
                     context.remote_nonce = prop.take_rand();
                     context.remote_public_key = Some(match pubkey.get_Type() {
                         KeyTypeProtobuf::RSA => {
-                            SecioPublicKey::Rsa(pubkey.take_Data())
+                            PublicKey::Rsa(pubkey.take_Data())
                         },
                         KeyTypeProtobuf::Ed25519 => {
-                            SecioPublicKey::Ed25519(pubkey.take_Data())
+                            PublicKey::Ed25519(pubkey.take_Data())
                         },
                         KeyTypeProtobuf::Secp256k1 => {
-                            SecioPublicKey::Secp256k1(pubkey.take_Data())
+                            PublicKey::Secp256k1(pubkey.take_Data())
                         },
                     });
                     trace!("received proposition from remote ; pubkey = {:?} ; nonce = {:?}",
@@ -403,7 +404,7 @@ where
             data_to_verify.extend_from_slice(remote_exch.get_epubkey());
 
             match context.remote_public_key {
-                Some(SecioPublicKey::Rsa(ref remote_public_key)) => {
+                Some(PublicKey::Rsa(ref remote_public_key)) => {
                     // TODO: The ring library doesn't like some stuff in our DER public key,
                     //       therefore we scrap the first 24 bytes of the key. A proper fix would
                     //       be to write a DER parser, but that's not trivial.
@@ -419,7 +420,7 @@ where
                         },
                     }
                 },
-                Some(SecioPublicKey::Ed25519(ref remote_public_key)) => {
+                Some(PublicKey::Ed25519(ref remote_public_key)) => {
                     match signature_verify(&ED25519,
                                            UntrustedInput::from(remote_public_key),
                                            UntrustedInput::from(&data_to_verify),
@@ -433,7 +434,7 @@ where
                     }
                 },
                 #[cfg(feature = "secp256k1")]
-                Some(SecioPublicKey::Secp256k1(ref remote_public_key)) => {
+                Some(PublicKey::Secp256k1(ref remote_public_key)) => {
                     let data_to_verify = digest::digest(&digest::SHA256, &data_to_verify);
                     let message = secp256k1::Message::from_slice(data_to_verify.as_ref())
                         .expect("digest output length doesn't match secp256k1 input length");
@@ -454,7 +455,7 @@ where
                     }
                 },
                 #[cfg(not(feature = "secp256k1"))]
-                Some(SecioPublicKey::Secp256k1(_)) => {
+                Some(PublicKey::Secp256k1(_)) => {
                     debug!("support for secp256k1 was disabled at compile-time");
                     return Err(SecioError::SignatureVerificationFailed);
                 },

secio/src/lib.rs

@@ -105,7 +105,7 @@ use asn1_der::{DerObject, traits::FromDerEncoded, traits::FromDerObject};
 use bytes::{Bytes, BytesMut};
 use futures::stream::MapErr as StreamMapErr;
 use futures::{Future, Poll, Sink, StartSend, Stream};
-use libp2p_core::{PeerId, PublicKeyBytes, PublicKeyBytesSlice};
+use libp2p_core::{PeerId, PublicKey, PublicKeyBytesSlice};
 use ring::signature::{Ed25519KeyPair, RSAKeyPair};
 use ring::rand::SystemRandom;
 use rw_stream_sink::RwStreamSink;
@@ -230,20 +230,20 @@ impl SecioKeyPair {
     }
 
     /// Returns the public key corresponding to this key pair.
-    pub fn to_public_key(&self) -> SecioPublicKey {
+    pub fn to_public_key(&self) -> PublicKey {
         match self.inner {
             SecioKeyPairInner::Rsa { ref public, .. } => {
-                SecioPublicKey::Rsa(public.clone())
+                PublicKey::Rsa(public.clone())
             },
             SecioKeyPairInner::Ed25519 { ref key_pair } => {
-                SecioPublicKey::Ed25519(key_pair.public_key_bytes().to_vec())
+                PublicKey::Ed25519(key_pair.public_key_bytes().to_vec())
             },
             #[cfg(feature = "secp256k1")]
             SecioKeyPairInner::Secp256k1 { ref private } => {
                 let secp = secp256k1::Secp256k1::with_caps(secp256k1::ContextFlag::SignOnly);
                 let pubkey = secp256k1::key::PublicKey::from_secret_key(&secp, private)
                     .expect("wrong secp256k1 private key ; type safety violated");
-                SecioPublicKey::Secp256k1(pubkey.serialize().to_vec())
+                PublicKey::Secp256k1(pubkey.serialize().to_vec())
             },
         }
     }
@@ -289,61 +289,6 @@ enum SecioKeyPairInner {
     },
 }
 
-/// Public key used by the remote.
-#[derive(Debug, Clone, PartialEq, Eq)]
-pub enum SecioPublicKey {
-    /// DER format.
-    Rsa(Vec<u8>),
-    /// Format = ???
-    // TODO: ^
-    Ed25519(Vec<u8>),
-    /// Format = ???
-    // TODO: ^
-    Secp256k1(Vec<u8>),
-}
-
-impl SecioPublicKey {
-    /// Turns this public key into a raw representation.
-    #[inline]
-    pub fn as_raw(&self) -> PublicKeyBytesSlice {
-        match self {
-            SecioPublicKey::Rsa(ref data) => PublicKeyBytesSlice(data),
-            SecioPublicKey::Ed25519(ref data) => PublicKeyBytesSlice(data),
-            SecioPublicKey::Secp256k1(ref data) => PublicKeyBytesSlice(data),
-        }
-    }
-
-    /// Turns this public key into a raw representation.
-    #[inline]
-    pub fn into_raw(self) -> PublicKeyBytes {
-        match self {
-            SecioPublicKey::Rsa(data) => PublicKeyBytes(data),
-            SecioPublicKey::Ed25519(data) => PublicKeyBytes(data),
-            SecioPublicKey::Secp256k1(data) => PublicKeyBytes(data),
-        }
-    }
-
-    /// Builds a `PeerId` corresponding to the public key of the node.
-    #[inline]
-    pub fn to_peer_id(&self) -> PeerId {
-        self.as_raw().into()
-    }
-}
-
-impl From<SecioPublicKey> for PeerId {
-    #[inline]
-    fn from(key: SecioPublicKey) -> PeerId {
-        key.to_peer_id()
-    }
-}
-
-impl From<SecioPublicKey> for PublicKeyBytes {
-    #[inline]
-    fn from(key: SecioPublicKey) -> PublicKeyBytes {
-        key.into_raw()
-    }
-}
-
 impl<S, Maf> libp2p_core::ConnectionUpgrade<S, Maf> for SecioConfig
 where
     S: AsyncRead + AsyncWrite + 'static,        // TODO: 'static :(
@@ -351,7 +296,7 @@ where
 {
     type Output = (
         RwStreamSink<StreamMapErr<SecioMiddleware<S>, fn(SecioError) -> IoError>>,
-        SecioPublicKey,
+        PublicKey,
     );
     type MultiaddrFuture = Maf;
     type Future = Box<Future<Item = (Self::Output, Maf), Error = IoError>>;
@@ -407,7 +352,7 @@ where
     pub fn handshake<'a>(
         socket: S,
         key_pair: SecioKeyPair,
-    ) -> Box<Future<Item = (SecioMiddleware<S>, SecioPublicKey), Error = SecioError> + 'a>
+    ) -> Box<Future<Item = (SecioMiddleware<S>, PublicKey), Error = SecioError> + 'a>
     where
         S: 'a,
     {