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Merge branch 'feature-dan' into merge-feature-dan
* feature-dan: fix(core)!: sort validate set by shard key (tari-project#4952) update validator signature feat!: implement validator node registration as per RFC-0313 (tari-project#4928)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,44 @@ | ||
| // Copyright 2022. The Tari Project | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without modification, are permitted provided that the | ||
| // following conditions are met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following | ||
| // disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the | ||
| // following disclaimer in the documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote | ||
| // products derived from this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
| // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
| // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| use newtype_ops::newtype_ops; | ||
| use serde::{Deserialize, Serialize}; | ||
|
|
||
| #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize, Default)] | ||
| pub struct VnEpoch(pub u64); | ||
|
|
||
| impl VnEpoch { | ||
| pub fn as_u64(&self) -> u64 { | ||
| self.0 | ||
| } | ||
|
|
||
| pub fn to_be_bytes(&self) -> [u8; 8] { | ||
| self.0.to_be_bytes() | ||
| } | ||
|
|
||
| pub fn saturating_sub(self, other: VnEpoch) -> VnEpoch { | ||
| VnEpoch(self.0.saturating_sub(other.0)) | ||
| } | ||
| } | ||
|
|
||
| newtype_ops! { [VnEpoch] {add sub mul div} {:=} Self Self } | ||
| newtype_ops! { [VnEpoch] {add sub mul div} {:=} &Self &Self } | ||
| newtype_ops! { [VnEpoch] {add sub mul div} {:=} Self &Self } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // Copyright 2022. The Tari Project | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without modification, are permitted provided that the | ||
| // following conditions are met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following | ||
| // disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the | ||
| // following disclaimer in the documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote | ||
| // products derived from this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, | ||
| // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
| // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE | ||
| // USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
|
|
||
| use rand::rngs::OsRng; | ||
| use serde::{Deserialize, Serialize}; | ||
| use tari_crypto::{hash::blake2::Blake256, hash_domain, hashing::DomainSeparatedHasher, keys::PublicKey as PublicKeyT}; | ||
| use tari_utilities::ByteArray; | ||
|
|
||
| use crate::types::{FixedHash, PrivateKey, PublicKey, Signature}; | ||
|
|
||
| hash_domain!(ValidatorNodeHashDomain, "com.tari.dan_layer.validator_node", 0); | ||
|
|
||
| #[derive(Debug, Clone, Hash, PartialEq, Eq, Deserialize, Serialize)] | ||
| pub struct ValidatorNodeSignature { | ||
| public_key: PublicKey, | ||
| signature: Signature, | ||
| } | ||
|
|
||
| impl ValidatorNodeSignature { | ||
| pub fn new(public_key: PublicKey, signature: Signature) -> Self { | ||
| Self { public_key, signature } | ||
| } | ||
|
|
||
| // TODO: pass in commitment instead of arbitrary message | ||
| pub fn sign(private_key: &PrivateKey, msg: &[u8]) -> Self { | ||
| let (secret_nonce, public_nonce) = PublicKey::random_keypair(&mut OsRng); | ||
| let public_key = PublicKey::from_secret_key(private_key); | ||
| let challenge = Self::construct_challenge(&public_key, &public_nonce, msg); | ||
| // TODO: Changing to use the new signing API requires a lot of changes | ||
| let signature = Signature::sign_raw(private_key, secret_nonce, &*challenge) | ||
| .expect("Sign cannot fail with 32-byte challenge and a RistrettoPublicKey"); | ||
| Self { public_key, signature } | ||
| } | ||
|
|
||
| fn construct_challenge(public_key: &PublicKey, public_nonce: &PublicKey, msg: &[u8]) -> FixedHash { | ||
| let hasher = DomainSeparatedHasher::<Blake256, ValidatorNodeHashDomain>::new_with_label("registration") | ||
| .chain(public_key.as_bytes()) | ||
| .chain(public_nonce.as_bytes()) | ||
| .chain(msg); | ||
| digest::Digest::finalize(hasher).into() | ||
| } | ||
|
|
||
| pub fn is_valid_signature_for(&self, msg: &[u8]) -> bool { | ||
| let challenge = Self::construct_challenge(&self.public_key, self.signature.get_public_nonce(), msg); | ||
| self.signature.verify_challenge(&self.public_key, &*challenge) | ||
| } | ||
|
|
||
| pub fn public_key(&self) -> &PublicKey { | ||
| &self.public_key | ||
| } | ||
|
|
||
| pub fn signature(&self) -> &Signature { | ||
| &self.signature | ||
| } | ||
| } |
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