openethereum/parity/secretstore.rs
Svyatoslav Nikolsky c0c06fdc53 Secretstore over network (#4974)
* ECDKG protocol prototype

* added test for enc/dec math

* get rid of decryption_session

* added licenses

* fix after merge

* get rid of unused serde dependency

* doc

* decryption session [without commutative enc]

* failed_dec_session

* fixed tests

* added commen

* added more decryption session tests

* helper to localize an issue

* more computations to localize error

* decryption_session::SessionParams

* added tests for EC math to localize problem

* secretstore network transport

* encryption_session_works_over_network

* network errors processing

* connecting to KeyServer

* licenses

* get rid of debug println-s

* fixed secretstore args

* encryption results are stored in KS database

* decryption protocol works over network

* enc/dec Session traits

* fixing warnings

* fix after merge

* finally fixed <odd>-of-N-scheme

* temporary commented test

* 1-of-N works in math

* scheme 1-of-N works

* remove unnecessary unsafety

* fixed grumbles

* fix grumbles

* lost files
2017-04-03 11:13:51 +02:00

132 lines
3.9 KiB
Rust

// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
use dir::default_data_path;
use helpers::replace_home;
#[derive(Debug, PartialEq, Clone)]
/// Secret store configuration
pub struct Configuration {
/// Is secret store functionality enabled?
pub enabled: bool,
/// Interface to listen to
pub interface: String,
/// Port to listen to
pub port: u16,
/// Data directory path for secret store
pub data_path: String,
}
#[derive(Debug, PartialEq, Clone)]
/// Secret store dependencies
pub struct Dependencies {
// the only dependency will be BlockChainClient
}
#[cfg(not(feature = "secretstore"))]
mod server {
use super::{Configuration, Dependencies};
/// Noop key server implementation
pub struct KeyServer;
impl KeyServer {
/// Create new noop key server
pub fn new(_conf: Configuration, _deps: Dependencies) -> Result<Self, String> {
Ok(KeyServer)
}
}
}
#[cfg(feature="secretstore")]
mod server {
use ethkey;
use ethcore_secretstore;
use super::{Configuration, Dependencies};
/// Key server
pub struct KeyServer {
_key_server: Box<ethcore_secretstore::KeyServer>,
}
impl KeyServer {
/// Create new key server
pub fn new(conf: Configuration, _deps: Dependencies) -> Result<Self, String> {
let key_pairs = vec![
ethkey::KeyPair::from_secret("6c26a76e9b31048d170873a791401c7e799a11f0cefc0171cc31a49800967509".parse().unwrap()).unwrap(),
ethkey::KeyPair::from_secret("7e94018b3731afdb3b4e6f4c3e179475640166da12e1d1b0c7d80729b1a5b452".parse().unwrap()).unwrap(),
ethkey::KeyPair::from_secret("5ab6ed2a52c33142380032c39a03a86b12eacb3fa4b53bc16d84f51318156f8c".parse().unwrap()).unwrap(),
];
let conf = ethcore_secretstore::ServiceConfiguration {
listener_address: ethcore_secretstore::NodeAddress {
address: conf.interface.clone(),
port: conf.port,
},
data_path: conf.data_path.clone(),
// TODO: this is test configuration. how it will be configured in production?
cluster_config: ethcore_secretstore::ClusterConfiguration {
threads: 4,
self_private: (***key_pairs[(conf.port - 8082) as usize].secret()).into(),
listener_address: ethcore_secretstore::NodeAddress {
address: conf.interface.clone(),
port: conf.port + 10,
},
nodes: key_pairs.iter().enumerate().map(|(i, kp)| (kp.public().clone(),
ethcore_secretstore::NodeAddress {
address: conf.interface.clone(),
port: 8082 + 10 + (i as u16),
})).collect(),
allow_connecting_to_higher_nodes: true,
encryption_config: ethcore_secretstore::EncryptionConfiguration {
key_check_timeout_ms: 1000,
},
}
};
let key_server = ethcore_secretstore::start(conf)
.map_err(Into::<String>::into)?;
Ok(KeyServer {
_key_server: key_server,
})
}
}
}
pub use self::server::KeyServer;
impl Default for Configuration {
fn default() -> Self {
let data_dir = default_data_path();
Configuration {
enabled: true,
interface: "127.0.0.1".to_owned(),
port: 8082,
data_path: replace_home(&data_dir, "$BASE/secretstore"),
}
}
}
/// Start secret store-related functionality
pub fn start(conf: Configuration, deps: Dependencies) -> Result<Option<KeyServer>, String> {
if !conf.enabled {
return Ok(None);
}
KeyServer::new(conf, deps)
.map(|s| Some(s))
}