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Bastian Köcher
f6f58f95e1
* Introduce `SecretUri` * `inspect-key`: Adds support for `expect-public` `expect-public` can be used to check that a given secret uri corresponds to the given public key. This is mainly useful when the secret uri is protected by a password and a new derived account should be generated. With `--expect-public` the user can pass the public key/account-id of the "base" secret uri aka the one without any derivation to ensure the correct password was inserted. * Fixes * 🤦 * Apply suggestions from code review Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com> * Review feedback * FMT * Bump the versions Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
Randomness Module
The Randomness Collective Flip module provides a random
function that generates low-influence random values based on the block hashes from the previous
81 blocks. Low-influence randomness can be useful when defending against relatively weak
adversaries. Using this pallet as a randomness source is advisable primarily in low-security
situations like testing.
Public Functions
See the Module struct for details of publicly available functions.
Usage
Prerequisites
Import the Randomness Collective Flip module and derive your module's configuration trait from the system trait.
Example - Get random seed for the current block
use frame_support::traits::Randomness;
#[frame_support::pallet]
pub mod pallet {
use super::*;
use frame_support::pallet_prelude::*;
use frame_system::pallet_prelude::*;
#[pallet::pallet]
pub struct Pallet<T>(_);
#[pallet::config]
pub trait Config: frame_system::Config + pallet_randomness_collective_flip::Config {}
#[pallet::call]
impl<T: Config> Pallet<T> {
#[pallet::weight(0)]
pub fn random_module_example(origin: OriginFor<T>) -> DispatchResult {
let _random_value = <pallet_randomness_collective_flip::Pallet<T>>::random(&b"my context"[..]);
Ok(())
}
}
}
License: Apache-2.0