Bandersnatch VRF (#14412)

* Introduce bandersnatch vrf * Some documentation * Fix tests * Fix docs refs * Some more docs * Comments about key derivation * Make clippy happy * Fix ring context enc/dec test * Fix docs * Switch to upstream ring-vrf * Use sub-domains to construct VrfInput * Bandersnatch VRF experimental feature * Restore upstream dep * Fix feature flags * Apply typo fix Co-authored-by: Anton <anton.kalyaev@gmail.com> * Bump bandersnatch-vrfs * Weiestrass form has been selected * Rename bandersnatch testing app crypto id * Support for seed recovery * Clarified domain size <-> key size relationship * cargo fmt * Trigger CI * Some required tweaks to crypto types * Remove leftovers from Cargo.toml * Remove some TODO notes * Simplification of structs construction * Trigger CI * Apply review suggestion Co-authored-by: Koute <koute@users.noreply.github.com> * Docs typo * Fix keystore tests * Consistence * Add ref to git rependency * Static check of MAX_VRF_IOS value * Clarify behavior for out of ring keys signatures * Add test for ring-vrf to the keystore * Fix docs --------- Co-authored-by: Anton <anton.kalyaev@gmail.com> Co-authored-by: Koute <koute@users.noreply.github.com>
2026-06-19 08:51:04 +00:00 · 2023-08-09 17:09:47 +02:00
parent 8321cee4f5
commit 314109d87b
23 changed files with 1900 additions and 59 deletions
@@ -0,0 +1,57 @@
+// This file is part of Substrate.
+
+// Copyright (C) Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: Apache-2.0
+
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// 	http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Bandersnatch VRF application crypto types.
+
+use crate::{KeyTypeId, RuntimePublic};
+pub use sp_core::bandersnatch::*;
+use sp_std::vec::Vec;
+
+mod app {
+	crate::app_crypto!(super, sp_core::testing::BANDERSNATCH);
+}
+
+#[cfg(feature = "full_crypto")]
+pub use app::Pair as AppPair;
+pub use app::{Public as AppPublic, Signature as AppSignature};
+
+impl RuntimePublic for Public {
+	type Signature = Signature;
+
+	/// Dummy implementation. Returns an empty vector.
+	fn all(_key_type: KeyTypeId) -> Vec<Self> {
+		Vec::new()
+	}
+
+	fn generate_pair(key_type: KeyTypeId, seed: Option<Vec<u8>>) -> Self {
+		sp_io::crypto::bandersnatch_generate(key_type, seed)
+	}
+
+	/// Dummy implementation. Returns `None`.
+	fn sign<M: AsRef<[u8]>>(&self, _key_type: KeyTypeId, _msg: &M) -> Option<Self::Signature> {
+		None
+	}
+
+	/// Dummy implementation. Returns `false`.
+	fn verify<M: AsRef<[u8]>>(&self, _msg: &M, _signature: &Self::Signature) -> bool {
+		false
+	}
+
+	fn to_raw_vec(&self) -> Vec<u8> {
+		sp_core::crypto::ByteArray::to_raw_vec(self)
+	}
+}