sc_proof_of_time::verifier

Struct PotVerifier

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pub struct PotVerifier { /* private fields */ }
Expand description

Verifier data structure that verifies and caches results of PoT verification

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impl PotVerifier

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pub fn new(genesis_seed: PotSeed, cache_size: u32) -> Self

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pub fn inject_verified_checkpoints( &self, seed: PotSeed, slot_iterations: NonZeroU32, checkpoints: PotCheckpoints, )

Inject known good checkpoints into verifier

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pub fn genesis_seed(&self) -> PotSeed

Get genesis seed

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pub fn get_checkpoints( &self, slot_iterations: NonZeroU32, seed: PotSeed, ) -> Option<PotCheckpoints>

Try to get checkpoints for provided seed and slot iterations, returns None if proving fails internally.

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pub fn try_get_checkpoints( &self, slot_iterations: NonZeroU32, seed: PotSeed, ) -> Option<PotCheckpoints>

Try to get checkpoints quickly without waiting for potentially locked mutex or proving

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pub fn is_output_valid( &self, input: PotNextSlotInput, slots: Slot, output: PotOutput, maybe_parameters_change: Option<PotParametersChange>, ) -> bool

Verify sequence of proofs of time that covers slots slots starting at slot with provided initial seed.

In case maybe_parameters_change is present, it will not affect provided seed and slot_iterations, meaning if parameters change occurred at slot, provided seed and slot_iterations must already account for that.

NOTE: Potentially much slower than checkpoints, prefer Self::verify_checkpoints() whenever possible.

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pub fn try_is_output_valid( &self, input: PotNextSlotInput, slots: Slot, output: PotOutput, maybe_parameters_change: Option<PotParametersChange>, ) -> bool

Does the same verification as Self::is_output_valid() except it relies on proofs being pre-validated before and will return false in case proving is necessary, this is meant to be a quick and cheap version of the function.

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pub fn verify_checkpoints( &self, seed: PotSeed, slot_iterations: NonZeroU32, checkpoints: &PotCheckpoints, ) -> bool

Verify proof of time checkpoints

Trait Implementations§

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impl Clone for PotVerifier

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fn clone(&self) -> PotVerifier

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PotVerifier

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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