sp_application_crypto/
bls381.rs

1// This file is part of Substrate.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: Apache-2.0
5
6// Licensed under the Apache License, Version 2.0 (the "License");
7// you may not use this file except in compliance with the License.
8// You may obtain a copy of the License at
9//
10// 	http://www.apache.org/licenses/LICENSE-2.0
11//
12// Unless required by applicable law or agreed to in writing, software
13// distributed under the License is distributed on an "AS IS" BASIS,
14// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15// See the License for the specific language governing permissions and
16// limitations under the License.
17
18//! BLS12-381 crypto applications.
19use crate::{KeyTypeId, RuntimePublic};
20
21use alloc::vec::Vec;
22
23pub use sp_core::bls::bls381::*;
24use sp_core::{crypto::CryptoType, proof_of_possession::ProofOfPossessionVerifier};
25
26mod app {
27	crate::app_crypto!(super, sp_core::testing::BLS381);
28}
29
30#[cfg(feature = "full_crypto")]
31pub use app::Pair as AppPair;
32pub use app::{Public as AppPublic, Signature as AppSignature};
33
34impl RuntimePublic for Public {
35	type Signature = Signature;
36
37	/// Dummy implementation. Returns an empty vector.
38	fn all(_key_type: KeyTypeId) -> Vec<Self> {
39		Vec::new()
40	}
41
42	fn generate_pair(key_type: KeyTypeId, seed: Option<Vec<u8>>) -> Self {
43		sp_io::crypto::bls381_generate(key_type, seed)
44	}
45
46	/// Dummy implementation. Returns `None`.
47	fn sign<M: AsRef<[u8]>>(&self, _key_type: KeyTypeId, _msg: &M) -> Option<Self::Signature> {
48		None
49	}
50
51	/// Dummy implementation. Returns `false`.
52	fn verify<M: AsRef<[u8]>>(&self, _msg: &M, _signature: &Self::Signature) -> bool {
53		false
54	}
55
56	fn generate_proof_of_possession(&mut self, key_type: KeyTypeId) -> Option<Self::Signature> {
57		sp_io::crypto::bls381_generate_proof_of_possession(key_type, self)
58	}
59
60	fn verify_proof_of_possession(&self, proof_of_possession: &Self::Signature) -> bool {
61		let proof_of_possession = AppSignature::from(*proof_of_possession);
62		let pub_key = AppPublic::from(*self);
63		<AppPublic as CryptoType>::Pair::verify_proof_of_possession(&proof_of_possession, &pub_key)
64	}
65
66	fn to_raw_vec(&self) -> Vec<u8> {
67		sp_core::crypto::ByteArray::to_raw_vec(self)
68	}
69}
sp_application_crypto/bls381.rs

sp_application_crypto/
bls381.rs
