108 lines
3.1 KiB
Rust
108 lines
3.1 KiB
Rust
// Copyright 2015-2019 Parity Technologies (UK) Ltd.
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// This file is part of Parity Ethereum.
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// Parity Ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity Ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity Ethereum. If not, see <http://www.gnu.org/licenses/>.
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use ethkey::crypto::ecdh::agree;
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use ethkey::{KeyPair, Public, Signature, Error as EthKeyError, sign, public_to_address};
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use ethereum_types::{H256, Address};
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use traits::NodeKeyPair;
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pub struct PlainNodeKeyPair {
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key_pair: KeyPair,
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}
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impl PlainNodeKeyPair {
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pub fn new(key_pair: KeyPair) -> Self {
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PlainNodeKeyPair {
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key_pair: key_pair,
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}
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}
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#[cfg(test)]
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pub fn key_pair(&self) -> &KeyPair {
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&self.key_pair
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}
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}
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impl NodeKeyPair for PlainNodeKeyPair {
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fn public(&self) -> &Public {
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self.key_pair.public()
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}
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fn address(&self) -> Address {
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public_to_address(self.key_pair.public())
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}
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fn sign(&self, data: &H256) -> Result<Signature, EthKeyError> {
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sign(self.key_pair.secret(), data)
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}
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fn compute_shared_key(&self, peer_public: &Public) -> Result<KeyPair, EthKeyError> {
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agree(self.key_pair.secret(), peer_public)
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.map_err(|e| EthKeyError::Custom(e.to_string()))
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.and_then(KeyPair::from_secret)
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}
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}
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#[cfg(feature = "accounts")]
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mod accounts {
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use super::*;
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use std::sync::Arc;
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use ethkey::Password;
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use accounts::AccountProvider;
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pub struct KeyStoreNodeKeyPair {
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account_provider: Arc<AccountProvider>,
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address: Address,
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public: Public,
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password: Password,
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}
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impl KeyStoreNodeKeyPair {
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pub fn new(account_provider: Arc<AccountProvider>, address: Address, password: Password) -> Result<Self, EthKeyError> {
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let public = account_provider.account_public(address.clone(), &password).map_err(|e| EthKeyError::Custom(format!("{}", e)))?;
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Ok(KeyStoreNodeKeyPair {
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account_provider: account_provider,
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address: address,
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public: public,
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password: password,
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})
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}
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}
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impl NodeKeyPair for KeyStoreNodeKeyPair {
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fn public(&self) -> &Public {
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&self.public
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}
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fn address(&self) -> Address {
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public_to_address(&self.public)
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}
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fn sign(&self, data: &H256) -> Result<Signature, EthKeyError> {
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self.account_provider.sign(self.address.clone(), Some(self.password.clone()), data.clone())
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.map_err(|e| EthKeyError::Custom(format!("{}", e)))
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}
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fn compute_shared_key(&self, peer_public: &Public) -> Result<KeyPair, EthKeyError> {
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KeyPair::from_secret(self.account_provider.agree(self.address.clone(), Some(self.password.clone()), peer_public)
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.map_err(|e| EthKeyError::Custom(format!("{}", e)))?)
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}
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}
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}
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#[cfg(feature = "accounts")]
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pub use self::accounts::KeyStoreNodeKeyPair;
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