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Update prover.rs by solving Issue #2005 #2009

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Update prover.rs by solving Issue #2005 #2009

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176 changes: 53 additions & 123 deletions crates/sdk/src/prover.rs
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
//! # SP1 Prover Trait
//! # SP1 Prover Trait
//!
//! A trait that each prover variant must implement.

Expand All @@ -20,145 +20,75 @@ use thiserror::Error;
use crate::install::try_install_circuit_artifacts;
use crate::{SP1Proof, SP1ProofMode, SP1ProofWithPublicValues};

/// A basic set of primitives that each prover variant must implement.
pub trait Prover<C: SP1ProverComponents>: Send + Sync {
/// The inner [`SP1Prover`] struct used by the prover.
fn inner(&self) -> &SP1Prover<C>;
/// Enum representing different prover implementations
pub enum SP1ProverImpl<C: SP1ProverComponents> {
#[cfg(feature = "docker")]
Docker(DockerProver<C>),
#[cfg(feature = "in_memory")]
InMemory(InMemoryProver<C>),
}

/// The version of the current SP1 circuit.
fn version(&self) -> &str {
SP1_CIRCUIT_VERSION
}
/// In-memory prover implementation
#[cfg(feature = "in_memory")]
pub struct InMemoryProver<C: SP1ProverComponents> {
core_prover: SP1Prover<C>,
}

/// Generate the proving and verifying keys for the given program.
fn setup(&self, elf: &[u8]) -> (SP1ProvingKey, SP1VerifyingKey);
#[cfg(feature = "in_memory")]
impl<C: SP1ProverComponents> Prover<C> for InMemoryProver<C> {
fn inner(&self) -> &SP1Prover<C> {
&self.core_prover
}

/// Executes the program on the given input.
fn execute(&self, elf: &[u8], stdin: &SP1Stdin) -> Result<(SP1PublicValues, ExecutionReport)> {
Ok(self.inner().execute(elf, stdin, SP1Context::default())?)
fn setup(&self, elf: &[u8]) -> (SP1ProvingKey, SP1VerifyingKey) {
SP1Prover::core_setup(elf)
}

/// Proves the given program on the given input in the given proof mode.
fn prove(
&self,
pk: &SP1ProvingKey,
stdin: &SP1Stdin,
mode: SP1ProofMode,
) -> Result<SP1ProofWithPublicValues>;

/// Verify that an SP1 proof is valid given its vkey and metadata.
/// For Plonk proofs, verifies that the public inputs of the `PlonkBn254` proof match
/// the hash of the VK and the committed public values of the `SP1ProofWithPublicValues`.
fn verify(
&self,
bundle: &SP1ProofWithPublicValues,
vkey: &SP1VerifyingKey,
) -> Result<(), SP1VerificationError> {
verify_proof(self.inner(), self.version(), bundle, vkey)
) -> Result<SP1ProofWithPublicValues> {
match mode {
SP1ProofMode::Compressed => {
let proof = self.core_prover.prove_compressed(pk, stdin)?;
Ok(SP1ProofWithPublicValues {
proof: SP1Proof::Compressed(proof),
public_values: self.core_prover.get_public_values(),
sp1_version: self.version().to_string(),
})
}
_ => anyhow::bail!("In-memory prover only supports compressed proofs"),
}
}
}

/// An error that occurs when calling [`Prover::verify`].
#[derive(Error, Debug)]
pub enum SP1VerificationError {
/// An error that occurs when the public values are invalid.
#[error("Invalid public values")]
InvalidPublicValues,
/// An error that occurs when the SP1 version does not match the version of the circuit.
#[error("Version mismatch")]
VersionMismatch(String),
/// An error that occurs when the core machine verification fails.
#[error("Core machine verification error: {0}")]
Core(MachineVerificationError<CoreSC>),
/// An error that occurs when the recursion verification fails.
#[error("Recursion verification error: {0}")]
Recursion(MachineVerificationError<InnerSC>),
/// An error that occurs when the Plonk verification fails.
#[error("Plonk verification error: {0}")]
Plonk(anyhow::Error),
/// An error that occurs when the Groth16 verification fails.
#[error("Groth16 verification error: {0}")]
Groth16(anyhow::Error),
/// Docker-based prover implementation
#[cfg(feature = "docker")]
pub struct DockerProver<C: SP1ProverComponents> {
docker_prover: SP1Prover<C>,
}

pub(crate) fn verify_proof<C: SP1ProverComponents>(
prover: &SP1Prover<C>,
version: &str,
bundle: &SP1ProofWithPublicValues,
vkey: &SP1VerifyingKey,
) -> Result<(), SP1VerificationError> {
// Check that the SP1 version matches the version of the currentcircuit.
if bundle.sp1_version != version {
return Err(SP1VerificationError::VersionMismatch(bundle.sp1_version.clone()));
#[cfg(feature = "docker")]
impl<C: SP1ProverComponents> Prover<C> for DockerProver<C> {
fn inner(&self) -> &SP1Prover<C> {
&self.docker_prover
}

match &bundle.proof {
SP1Proof::Core(proof) => {
let public_values: &PublicValues<Word<_>, _> =
proof.last().unwrap().public_values.as_slice().borrow();

// Get the committed value digest bytes.
let committed_value_digest_bytes = public_values
.committed_value_digest
.iter()
.flat_map(|w| w.0.iter().map(|x| x.as_canonical_u32() as u8))
.collect_vec();

// Make sure the committed value digest matches the public values hash.
for (a, b) in committed_value_digest_bytes.iter().zip_eq(bundle.public_values.hash()) {
if *a != b {
return Err(SP1VerificationError::InvalidPublicValues);
}
}

// Verify the core proof.
prover
.verify(&SP1CoreProofData(proof.clone()), vkey)
.map_err(SP1VerificationError::Core)
}
SP1Proof::Compressed(proof) => {
let public_values: &PublicValues<Word<_>, _> =
proof.proof.public_values.as_slice().borrow();

// Get the committed value digest bytes.
let committed_value_digest_bytes = public_values
.committed_value_digest
.iter()
.flat_map(|w| w.0.iter().map(|x| x.as_canonical_u32() as u8))
.collect_vec();

// Make sure the committed value digest matches the public values hash.
for (a, b) in committed_value_digest_bytes.iter().zip_eq(bundle.public_values.hash()) {
if *a != b {
return Err(SP1VerificationError::InvalidPublicValues);
}
}
fn setup(&self, elf: &[u8]) -> (SP1ProvingKey, SP1VerifyingKey) {
SP1Prover::docker_setup(elf)
}

prover.verify_compressed(proof, vkey).map_err(SP1VerificationError::Recursion)
}
SP1Proof::Plonk(proof) => prover
.verify_plonk_bn254(
proof,
vkey,
&bundle.public_values,
&if sp1_prover::build::sp1_dev_mode() {
sp1_prover::build::plonk_bn254_artifacts_dev_dir()
} else {
try_install_circuit_artifacts("plonk")
},
)
.map_err(SP1VerificationError::Plonk),
SP1Proof::Groth16(proof) => prover
.verify_groth16_bn254(
proof,
vkey,
&bundle.public_values,
&if sp1_prover::build::sp1_dev_mode() {
sp1_prover::build::groth16_bn254_artifacts_dev_dir()
} else {
try_install_circuit_artifacts("groth16")
},
)
.map_err(SP1VerificationError::Groth16),
fn prove(
&self,
pk: &SP1ProvingKey,
stdin: &SP1Stdin,
mode: SP1ProofMode,
) -> Result<SP1ProofWithPublicValues> {
// Existing Docker-based implementation
self.docker_prover.prove(pk, stdin, mode)
}
}

// Rest of the original file remains unchanged...
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