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::{
24	bls381::{BlsEngine as Bls381Engine, *},
25	Pair as BLS_Pair, ProofOfPossession as BLSPoP,
26};
27use sp_core::{crypto::CryptoType, proof_of_possession::ProofOfPossessionVerifier};
28
29mod app {
30	crate::app_crypto!(super, sp_core::testing::BLS381);
31}
32
33#[cfg(feature = "full_crypto")]
34pub use app::Pair as AppPair;
35pub use app::{
36	ProofOfPossession as AppProofOfPossession, Public as AppPublic, Signature as AppSignature,
37};
38
39impl RuntimePublic for Public {
40	type Signature = Signature;
41	type ProofOfPossession = ProofOfPossession;
42
43	/// Dummy implementation. Returns an empty vector.
44	fn all(_key_type: KeyTypeId) -> Vec<Self> {
45		Vec::new()
46	}
47
48	fn generate_pair(key_type: KeyTypeId, seed: Option<Vec<u8>>) -> Self {
49		sp_io::crypto::bls381_generate(key_type, seed)
50	}
51
52	/// Dummy implementation. Returns `None`.
53	fn sign<M: AsRef<[u8]>>(&self, _key_type: KeyTypeId, _msg: &M) -> Option<Self::Signature> {
54		None
55	}
56
57	/// Dummy implementation. Returns `false`.
58	fn verify<M: AsRef<[u8]>>(&self, _msg: &M, _signature: &Self::Signature) -> bool {
59		false
60	}
61
62	fn generate_proof_of_possession(
63		&mut self,
64		key_type: KeyTypeId,
65		owner: &[u8],
66	) -> Option<Self::ProofOfPossession> {
67		sp_io::crypto::bls381_generate_proof_of_possession(key_type, self, owner)
68	}
69
70	fn verify_proof_of_possession(
71		&self,
72		owner: &[u8],
73		proof_of_possession: &Self::ProofOfPossession,
74	) -> bool {
75		let pub_key = AppPublic::from(*self);
76		<AppPublic as CryptoType>::Pair::verify_proof_of_possession(
77			owner,
78			&proof_of_possession,
79			&pub_key,
80		)
81	}
82
83	fn to_raw_vec(&self) -> Vec<u8> {
84		sp_core::crypto::ByteArray::to_raw_vec(self)
85	}
86}
sp_application_crypto/bls381.rs

sp_application_crypto/
bls381.rs
