mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 20:27:58 +00:00
Gavin Wood
adba89913e
* Reformulate random seed to be more random - First 80 random values come from cycling the incomplete series ( instead of filling with zeroes) - Calculate random material each usage (use a single amalgamated ring buffer to store them for avoiding 81 lookups each time) - Mutate inputs by hashing each with: - its index (into the 81) - an additional "subject" key provided by caller This keeps the final output low-influence while still allowing it to be used as the seed to independent contexts. (Hashing the result to give the final seed is no better than using parent_hash). * Docs * Bump runtime * Update notes * Remove feature(alloc) * Update srml/system/src/lib.rs Co-Authored-By: gavofyork <github@gavwood.com>
70 lines
2.4 KiB
Rust
70 lines
2.4 KiB
Rust
// Copyright 2018-2019 Parity Technologies (UK) Ltd.
|
|
// This file is part of Substrate.
|
|
|
|
// Substrate 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.
|
|
|
|
// Substrate 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 Substrate. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//! Low-level types used throughout the Substrate code.
|
|
|
|
#![warn(missing_docs)]
|
|
|
|
#![cfg_attr(not(feature = "std"), no_std)]
|
|
|
|
use runtime_primitives::{
|
|
generic, traits::{Verify, BlakeTwo256}, OpaqueExtrinsic, AnySignature
|
|
};
|
|
|
|
/// An index to a block.
|
|
pub type BlockNumber = u64;
|
|
|
|
/// Alias to 512-bit hash when used in the context of a transaction signature on the chain.
|
|
pub type Signature = AnySignature;
|
|
|
|
/// Some way of identifying an account on the chain. We intentionally make it equivalent
|
|
/// to the public key of our transaction signing scheme.
|
|
pub type AccountId = <Signature as Verify>::Signer;
|
|
|
|
/// The type for looking up accounts. We don't expect more than 4 billion of them, but you
|
|
/// never know...
|
|
pub type AccountIndex = u32;
|
|
|
|
/// Balance of an account.
|
|
pub type Balance = u128;
|
|
|
|
/// The Ed25519 pub key of an session that belongs to an authority of the chain. This is
|
|
/// exactly equivalent to what the substrate calls an "authority".
|
|
pub type AuthorityId = <AuthoritySignature as Verify>::Signer;
|
|
|
|
/// Alias to 512-bit hash when used in the context of a session signature on the chain.
|
|
pub type AuthoritySignature = primitives::ed25519::Signature;
|
|
|
|
/// Index of a transaction in the chain.
|
|
pub type Index = u64;
|
|
|
|
/// A hash of some data used by the chain.
|
|
pub type Hash = primitives::H256;
|
|
|
|
/// A timestamp: seconds since the unix epoch.
|
|
pub type Timestamp = u64;
|
|
|
|
/// Header type.
|
|
///
|
|
pub type Header = generic::Header<BlockNumber, BlakeTwo256, generic::DigestItem<Hash, AuthorityId, AuthoritySignature>>;
|
|
/// Block type.
|
|
pub type Block = generic::Block<Header, UncheckedExtrinsic>;
|
|
/// Block ID.
|
|
pub type BlockId = generic::BlockId<Block>;
|
|
|
|
/// Opaque, encoded, unchecked extrinsic.
|
|
pub type UncheckedExtrinsic = OpaqueExtrinsic;
|