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Use prepared verifying key for non-batch Groth16 verification (#3092)

This commit is contained in:
teor 2021-11-23 14:30:59 +10:00 committed by GitHub
parent b39f4ca5aa
commit 29d5da320f
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 38 additions and 50 deletions
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13
zebra-consensus/src/primitives/groth16.rs
View File

@ -9,7 +9,7 @@ use std::{
}; };
use bellman::{ use bellman::{
groth16::{batch, prepare_verifying_key, VerifyingKey}, groth16::{batch, VerifyingKey},
VerificationError, VerificationError,
}; };
use bls12_381::Bls12; use bls12_381::Bls12;
@ -40,8 +40,7 @@ pub use params::{Groth16Parameters, GROTH16_PARAMETERS};
/// handle. /// handle.
pub static SPEND_VERIFIER: Lazy< pub static SPEND_VERIFIER: Lazy<
Fallback<Batch<Verifier, Item>, ServiceFn<fn(Item) -> Ready<Result<(), VerificationError>>>>, Fallback<Batch<Verifier, Item>, ServiceFn<fn(Item) -> Ready<Result<(), VerificationError>>>>,
> = > = Lazy::new(|| {
Lazy::new(|| {
Fallback::new( Fallback::new(
Batch::new( Batch::new(
Verifier::new(&GROTH16_PARAMETERS.sapling.spend.vk), Verifier::new(&GROTH16_PARAMETERS.sapling.spend.vk),
@ -58,9 +57,7 @@ pub static SPEND_VERIFIER: Lazy<
// function (which is possible because it doesn't capture any state). // function (which is possible because it doesn't capture any state).
tower::service_fn( tower::service_fn(
(|item: Item| { (|item: Item| {
ready(item.verify_single(&prepare_verifying_key( ready(item.verify_single(&GROTH16_PARAMETERS.sapling.spend_prepared_verifying_key))
&GROTH16_PARAMETERS.sapling.spend.vk,
)))
}) as fn(_) -> _, }) as fn(_) -> _,
), ),
) )
@ -93,9 +90,7 @@ pub static OUTPUT_VERIFIER: Lazy<
// function (which is possible because it doesn't capture any state). // function (which is possible because it doesn't capture any state).
tower::service_fn( tower::service_fn(
(|item: Item| { (|item: Item| {
ready(item.verify_single(&prepare_verifying_key( ready(item.verify_single(&GROTH16_PARAMETERS.sapling.output_prepared_verifying_key))
&GROTH16_PARAMETERS.sapling.output.vk,
)))
}) as fn(_) -> _, }) as fn(_) -> _,
), ),
) )

15
zebra-consensus/src/primitives/groth16/tests.rs
View File

@ -62,8 +62,7 @@ where
#[tokio::test] #[tokio::test]
async fn verify_sapling_groth16() { async fn verify_sapling_groth16() {
// Use separate verifiers so shared batch tasks aren't killed when the test ends (#2390) // Use separate verifiers so shared batch tasks aren't killed when the test ends (#2390)
let mut spend_verifier = let mut spend_verifier = Fallback::new(
Fallback::new(
Batch::new( Batch::new(
Verifier::new(&GROTH16_PARAMETERS.sapling.spend.vk), Verifier::new(&GROTH16_PARAMETERS.sapling.spend.vk),
crate::primitives::MAX_BATCH_SIZE, crate::primitives::MAX_BATCH_SIZE,
@ -71,9 +70,7 @@ async fn verify_sapling_groth16() {
), ),
tower::service_fn( tower::service_fn(
(|item: Item| { (|item: Item| {
ready(item.verify_single(&prepare_verifying_key( ready(item.verify_single(&GROTH16_PARAMETERS.sapling.spend_prepared_verifying_key))
&GROTH16_PARAMETERS.sapling.spend.vk,
)))
}) as fn(_) -> _, }) as fn(_) -> _,
), ),
); );
@ -85,9 +82,7 @@ async fn verify_sapling_groth16() {
), ),
tower::service_fn( tower::service_fn(
(|item: Item| { (|item: Item| {
ready(item.verify_single(&prepare_verifying_key( ready(item.verify_single(&GROTH16_PARAMETERS.sapling.output_prepared_verifying_key))
&GROTH16_PARAMETERS.sapling.output.vk,
)))
}) as fn(_) -> _, }) as fn(_) -> _,
), ),
); );
@ -163,9 +158,7 @@ async fn correctly_err_on_invalid_output_proof() {
), ),
tower::service_fn( tower::service_fn(
(|item: Item| { (|item: Item| {
ready(item.verify_single(&prepare_verifying_key( ready(item.verify_single(&GROTH16_PARAMETERS.sapling.output_prepared_verifying_key))
&GROTH16_PARAMETERS.sapling.output.vk,
)))
}) as fn(_) -> _, }) as fn(_) -> _,
), ),
); );