Trait fvm::externs::Rand

pub trait Rand {
    fn get_chain_randomness(
        &self, 
        pers: DomainSeparationTag, 
        round: ChainEpoch, 
        entropy: &[u8]
    ) -> Result<[u8; 32]>;
    fn get_beacon_randomness(
        &self, 
        pers: DomainSeparationTag, 
        round: ChainEpoch, 
        entropy: &[u8]
    ) -> Result<[u8; 32]>;
}

Randomness provider trait

Required methods

fn get_chain_randomness(
    &self,
    pers: DomainSeparationTag,
    round: ChainEpoch,
    entropy: &[u8]
) -> Result<[u8; 32]>

Gets 32 bytes of randomness for ChainRand paramaterized by the DomainSeparationTag, ChainEpoch, Entropy from the ticket chain.

fn get_beacon_randomness(
    &self,
    pers: DomainSeparationTag,
    round: ChainEpoch,
    entropy: &[u8]
) -> Result<[u8; 32]>

Gets 32 bytes of randomness for ChainRand paramaterized by the DomainSeparationTag, ChainEpoch, Entropy from the latest beacon entry.

Implementors