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Refinements to VRF types (#14036)

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* Allow extra signing data

* Fix tests after renaming

* Rename VrfSecret/VrfVerifier to VrfSecret/VrfPublic

* Further encrapsulation of 'transcript' type to the sr25519 implementation

* Keystore sr25519 pre-output

* Leave additional custom input field hidden in the associated VrfInput type

* Fix test

* More ergonomic output_bytes

* Trigger pipeline

* Define a separated type for vrf signature data

* Fix docs

* Fix doc

* Remove annotation

* Directly use dleq_proove and dleq_verify in sr25519

* Trigger CI

* Remove cruft before merge
This commit is contained in:
Davide Galassi
2023-05-04 15:41:59 +02:00
committed by GitHub
parent 93165bc4d2
commit 3a90728de0
12 changed files with 384 additions and 138 deletions
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substrate/client/keystore/src/local.rs
+29 -6
View File
@@ -20,7 +20,7 @@
use parking_lot::RwLock;
use sp_application_crypto::{AppCrypto, AppPair, IsWrappedBy};
use sp_core::{
crypto::{ByteArray, ExposeSecret, KeyTypeId, Pair as CorePair, SecretString, VrfSigner},
crypto::{ByteArray, ExposeSecret, KeyTypeId, Pair as CorePair, SecretString, VrfSecret},
ecdsa, ed25519, sr25519,
};
use sp_keystore::{Error as TraitError, Keystore, KeystorePtr};
@@ -98,19 +98,33 @@ impl LocalKeystore {
Ok(signature)
}
fn vrf_sign<T: CorePair + VrfSigner>(
fn vrf_sign<T: CorePair + VrfSecret>(
&self,
key_type: KeyTypeId,
public: &T::Public,
transcript: &T::VrfInput,
data: &T::VrfSignData,
) -> std::result::Result<Option<T::VrfSignature>, TraitError> {
let sig = self
.0
.read()
.key_pair_by_type::<T>(public, key_type)?
.map(|pair| pair.vrf_sign(transcript));
.map(|pair| pair.vrf_sign(data));
Ok(sig)
}
fn vrf_output<T: CorePair + VrfSecret>(
&self,
key_type: KeyTypeId,
public: &T::Public,
input: &T::VrfInput,
) -> std::result::Result<Option<T::VrfOutput>, TraitError> {
let preout = self
.0
.read()
.key_pair_by_type::<T>(public, key_type)?
.map(|pair| pair.vrf_output(input));
Ok(preout)
}
}
impl Keystore for LocalKeystore {
@@ -142,9 +156,18 @@ impl Keystore for LocalKeystore {
&self,
key_type: KeyTypeId,
public: &sr25519::Public,
transcript: &sr25519::vrf::VrfTranscript,
data: &sr25519::vrf::VrfSignData,
) -> std::result::Result<Option<sr25519::vrf::VrfSignature>, TraitError> {
self.vrf_sign::<sr25519::Pair>(key_type, public, transcript)
self.vrf_sign::<sr25519::Pair>(key_type, public, data)
}
fn sr25519_vrf_output(
&self,
key_type: KeyTypeId,
public: &sr25519::Public,
input: &sr25519::vrf::VrfInput,
) -> std::result::Result<Option<sr25519::vrf::VrfOutput>, TraitError> {
self.vrf_output::<sr25519::Pair>(key_type, public, input)
}
fn ed25519_public_keys(&self, key_type: KeyTypeId) -> Vec<ed25519::Public> {