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1 stable release
2.0.0 | Apr 4, 2021 |
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#33 in #tetcore
114 downloads per month
Used in 12 crates
(3 directly)
1MB
23K
SLoC
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 noble 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 fabric_support::{decl_module, dispatch, traits::Randomness};
pub trait Config: fabric_system::Config {}
decl_module! {
pub struct Module<T: Config> for enum Call where origin: T::Origin {
#[weight = 0]
pub fn random_module_example(origin) -> dispatch::DispatchResult {
let _random_value = <noble_randomness_collective_flip::Module<T>>::random(&b"my context"[..]);
Ok(())
}
}
}
License: Apache-2.0
Dependencies
~3–12MB
~135K SLoC