116 lines
3.1 KiB
Rust
116 lines
3.1 KiB
Rust
// Copyright 2015-2018 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity 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 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. If not, see <http://www.gnu.org/licenses/>.
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use ethereum_types::{H256, U256, Address};
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use bytes::Bytes;
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use hash::keccak;
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use rlp::Encodable;
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use ethkey::Signature;
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use types::transaction::signature::{add_chain_replay_protection, check_replay_protection};
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/// Message with private transaction encrypted
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#[derive(Default, Debug, Clone, PartialEq, RlpEncodable, RlpDecodable, Eq)]
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pub struct PrivateTransaction {
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/// Encrypted data
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encrypted: Bytes,
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/// Address of the contract
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contract: Address,
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/// Hash
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hash: H256,
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}
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impl PrivateTransaction {
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/// Constructor
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pub fn new(encrypted: Bytes, contract: Address) -> Self {
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PrivateTransaction {
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encrypted,
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contract,
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hash: 0.into(),
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}.compute_hash()
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}
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fn compute_hash(mut self) -> PrivateTransaction {
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self.hash = keccak(&*self.rlp_bytes());
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self
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}
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/// Hash of the private transaction
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pub fn hash(&self) -> H256 {
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self.hash
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}
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/// Address of the contract
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pub fn contract(&self) -> Address {
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self.contract
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}
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/// Encrypted data
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pub fn encrypted(&self) -> Bytes {
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self.encrypted.clone()
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}
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}
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/// Message about private transaction's signing
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#[derive(Default, Debug, Clone, PartialEq, RlpEncodable, RlpDecodable, Eq)]
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pub struct SignedPrivateTransaction {
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/// Hash of the corresponding private transaction
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private_transaction_hash: H256,
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/// Signature of the validator
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/// The V field of the signature
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v: u64,
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/// The R field of the signature
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r: U256,
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/// The S field of the signature
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s: U256,
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/// Hash
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hash: H256,
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}
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impl SignedPrivateTransaction {
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/// Construct a signed private transaction message
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pub fn new(private_transaction_hash: H256, sig: Signature, chain_id: Option<u64>) -> Self {
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SignedPrivateTransaction {
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private_transaction_hash: private_transaction_hash,
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r: sig.r().into(),
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s: sig.s().into(),
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v: add_chain_replay_protection(sig.v() as u64, chain_id),
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hash: 0.into(),
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}.compute_hash()
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}
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fn compute_hash(mut self) -> SignedPrivateTransaction {
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self.hash = keccak(&*self.rlp_bytes());
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self
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}
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pub fn standard_v(&self) -> u8 { check_replay_protection(self.v) }
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/// Construct a signature object from the sig.
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pub fn signature(&self) -> Signature {
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Signature::from_rsv(&self.r.into(), &self.s.into(), self.standard_v())
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}
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/// Get the hash of of the original transaction.
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pub fn private_transaction_hash(&self) -> H256 {
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self.private_transaction_hash
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}
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/// Own hash
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pub fn hash(&self) -> H256 {
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self.hash
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}
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}
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