102 lines
2.4 KiB
Nim
102 lines
2.4 KiB
Nim
## Nim-Codex
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## Copyright (c) 2024 Status Research & Development GmbH
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## Licensed under either of
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## * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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## * MIT license ([LICENSE-MIT](LICENSE-MIT))
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## at your option.
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## This file may not be copied, modified, or distributed except according to
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## those terms.
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##
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import pkg/chronos
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import pkg/chronicles
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import pkg/circomcompat
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import pkg/poseidon2
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import pkg/questionable/results
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import pkg/libp2p/cid
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import ../../manifest
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import ../../merkletree
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import ../../stores
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import ../../market
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import ../../utils/poseidon2digest
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import ../../conf
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import ../builder
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import ../sampler
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import ./backends
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import ./backendfactory
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import ../types
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export backends
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logScope:
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topics = "codex prover"
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type
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AnyProof* = CircomProof
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AnySampler* = Poseidon2Sampler
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AnyBuilder* = Poseidon2Builder
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AnyProofInputs* = ProofInputs[Poseidon2Hash]
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Prover* = ref object of RootObj
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backend: AnyBackend
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store: BlockStore
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nSamples: int
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proc prove*(
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self: Prover,
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slotIdx: int,
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manifest: Manifest,
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challenge: ProofChallenge): Future[?!(AnyProofInputs, AnyProof)] {.async.} =
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## Prove a statement using backend.
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## Returns a future that resolves to a proof.
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logScope:
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cid = manifest.treeCid
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slot = slotIdx
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challenge = challenge
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trace "Received proof challenge"
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without builder =? AnyBuilder.new(self.store, manifest), err:
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error "Unable to create slots builder", err = err.msg
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return failure(err)
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without sampler =? AnySampler.new(slotIdx, self.store, builder), err:
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error "Unable to create data sampler", err = err.msg
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return failure(err)
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without proofInput =? await sampler.getProofInput(challenge, self.nSamples), err:
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error "Unable to get proof input for slot", err = err.msg
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return failure(err)
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# prove slot
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without proof =? self.backend.prove(proofInput), err:
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error "Unable to prove slot", err = err.msg
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return failure(err)
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success (proofInput, proof)
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proc verify*(
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self: Prover,
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proof: AnyProof,
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inputs: AnyProofInputs): Future[?!bool] {.async.} =
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## Prove a statement using backend.
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## Returns a future that resolves to a proof.
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self.backend.verify(proof, inputs)
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proc new*(
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_: type Prover,
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store: BlockStore,
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backend: AnyBackend,
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nSamples: int): Prover =
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Prover(
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store: store,
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backend: backend,
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nSamples: nSamples)
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