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This commit is contained in:
Kirk Baird 2019-03-11 15:22:15 +11:00
parent 2b991854ab
commit 25b08f0096
No known key found for this signature in database
GPG Key ID: BF864B7ED0BEA33F
8 changed files with 73 additions and 51 deletions
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16
beacon_node/beacon_chain/test_harness/src/beacon_chain_harness.rs
View File

@ -118,12 +118,16 @@ impl BeaconChainHarness {
let deposits = generate_deposits_from_keypairs(
&keypairs,
genesis_time,
spec.get_domain(spec.genesis_epoch, Domain::Deposit, &Fork{
previous_version: spec.genesis_fork_version,
current_version: spec.genesis_fork_version,
epoch: spec.genesis_epoch,
}),
&spec
spec.get_domain(
spec.genesis_epoch,
Domain::Deposit,
&Fork {
previous_version: spec.genesis_fork_version,
current_version: spec.genesis_fork_version,
epoch: spec.genesis_epoch,
},
),
&spec,
);
state_builder.process_initial_deposits(&deposits, &spec);
};

46
beacon_node/beacon_chain/test_harness/src/beacon_chain_harness/generate_deposits.rs
View File

@ -42,28 +42,32 @@ pub fn generate_deposits_from_keypairs(
keypairs.len()
);
let initial_validator_deposits =
keypairs
.par_iter()
.map(|keypair| {
let withdrawal_credentials = Hash256::from_slice(
&get_withdrawal_credentials(&keypair.pk, spec.bls_withdrawal_prefix_byte)[..]);
Deposit {
branch: vec![], // branch verification is not specified.
index: 0, // index verification is not specified.
deposit_data: DepositData {
amount: 32_000_000_000, // 32 ETH (in Gwei)
timestamp: genesis_time - 1,
deposit_input: DepositInput {
pubkey: keypair.pk.clone(),
// Validator can withdraw using their main keypair.
withdrawal_credentials: withdrawal_credentials.clone(),
proof_of_possession: DepositInput::create_proof_of_possession(&keypair, &withdrawal_credentials, domain),
},
let initial_validator_deposits = keypairs
.par_iter()
.map(|keypair| {
let withdrawal_credentials = Hash256::from_slice(
&get_withdrawal_credentials(&keypair.pk, spec.bls_withdrawal_prefix_byte)[..],
);
Deposit {
branch: vec![], // branch verification is not specified.
index: 0, // index verification is not specified.
deposit_data: DepositData {
amount: 32_000_000_000, // 32 ETH (in Gwei)
timestamp: genesis_time - 1,
deposit_input: DepositInput {
pubkey: keypair.pk.clone(),
// Validator can withdraw using their main keypair.
withdrawal_credentials: withdrawal_credentials.clone(),
proof_of_possession: DepositInput::create_proof_of_possession(
&keypair,
&withdrawal_credentials,
domain,
),
},
}
})
.collect();
},
}
})
.collect();
initial_validator_deposits
}

8
beacon_node/beacon_chain/test_harness/src/test_case.rs
View File

@ -265,10 +265,14 @@ fn build_deposit(
&keypair,
&withdrawal_credentials,
harness.spec.get_domain(
harness.beacon_chain.state.read().current_epoch(&harness.spec),
harness
.beacon_chain
.state
.read()
.current_epoch(&harness.spec),
Domain::Deposit,
&harness.beacon_chain.state.read().fork,
)
),
);
let index = harness.beacon_chain.state.read().deposit_index + index_offset;

6
beacon_node/src/main.rs
View File

@ -19,8 +19,8 @@ use slot_clock::SystemTimeSlotClock;
use ssz::TreeHash;
use std::sync::Arc;
use types::{
beacon_state::BeaconStateBuilder, BeaconBlock, ChainSpec, Domain, Deposit, DepositData, DepositInput,
Eth1Data, Fork, Hash256, Keypair,
beacon_state::BeaconStateBuilder, BeaconBlock, ChainSpec, Deposit, DepositData, DepositInput,
Domain, Eth1Data, Fork, Hash256, Keypair,
};
fn main() {
@ -123,7 +123,7 @@ fn main() {
previous_version: spec.genesis_fork_version,
current_version: spec.genesis_fork_version,
epoch: spec.genesis_epoch,
}
},
),
),
},

9
eth2/types/src/beacon_state.rs
View File

@ -618,19 +618,14 @@ impl BeaconState {
pubkey_map: Option<&HashMap<PublicKey, usize>>,
spec: &ChainSpec,
) -> Result<usize, ()> {
let proof_is_valid = deposit_input.proof_of_possession.verify(
&deposit_input.signed_root(),
spec.get_domain(
self.current_epoch(&spec),
Domain::Deposit,
&self.fork,
),
spec.get_domain(self.current_epoch(&spec), Domain::Deposit, &self.fork),
&deposit_input.pubkey,
);
if !proof_is_valid {
return Err(())
return Err(());
}
let pubkey = deposit_input.pubkey.clone();

21
eth2/types/src/deposit_input.rs
View File

@ -3,14 +3,25 @@ use crate::test_utils::TestRandom;
use bls::{Keypair, PublicKey, Signature};
use rand::RngCore;
use serde_derive::{Deserialize, Serialize};
use ssz_derive::{Decode, Encode, SignedRoot, TreeHash};
use ssz::{SignedRoot, TreeHash};
use ssz_derive::{Decode, Encode, SignedRoot, TreeHash};
use test_random_derive::TestRandom;
/// The data supplied by the user to the deposit contract.
///
/// Spec v0.4.0
#[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Encode, Decode, SignedRoot, TreeHash, TestRandom)]
#[derive(
Debug,
PartialEq,
Clone,
Serialize,
Deserialize,
Encode,
Decode,
SignedRoot,
TreeHash,
TestRandom,
)]
pub struct DepositInput {
pub pubkey: PublicKey,
pub withdrawal_credentials: Hash256,
@ -21,7 +32,11 @@ impl DepositInput {
/// Generate the 'proof_of_posession' signature for a given DepositInput details.
///
/// Spec v0.4.0
pub fn create_proof_of_possession(keypair: &Keypair, withdrawal_credentials: &Hash256, domain: u64) -> Signature {
pub fn create_proof_of_possession(
keypair: &Keypair,
withdrawal_credentials: &Hash256,
domain: u64,
) -> Signature {
let signable_deposite_input = DepositInput {
pubkey: keypair.pk.clone(),
withdrawal_credentials: withdrawal_credentials.clone(),

17
eth2/types/src/test_utils/testing_deposit_builder.rs
View File

@ -1,5 +1,5 @@
use crate::*;
use bls::{get_withdrawal_credentials};
use bls::get_withdrawal_credentials;
pub struct TestingDepositBuilder {
deposit: Deposit,
@ -31,15 +31,16 @@ impl TestingDepositBuilder {
}
pub fn sign(&mut self, keypair: &Keypair, domain: u64, spec: &ChainSpec) {
let withdrawal_credentials = Hash256::from_slice(&get_withdrawal_credentials(&keypair.pk, spec.bls_withdrawal_prefix_byte)[..]);
let withdrawal_credentials = Hash256::from_slice(
&get_withdrawal_credentials(&keypair.pk, spec.bls_withdrawal_prefix_byte)[..],
);
self.deposit.deposit_data.deposit_input.pubkey = keypair.pk.clone();
self.deposit.deposit_data.deposit_input.withdrawal_credentials = withdrawal_credentials.clone();
self.deposit
.deposit_data
.deposit_input
.withdrawal_credentials = withdrawal_credentials.clone();
self.deposit.deposit_data.deposit_input.proof_of_possession =
DepositInput::create_proof_of_possession(
&keypair,
&withdrawal_credentials,
domain,
);
DepositInput::create_proof_of_possession(&keypair, &withdrawal_credentials, domain);
}
pub fn build(self) -> Deposit {

1
eth2/utils/bls/src/lib.rs
View File

@ -29,7 +29,6 @@ pub fn verify_proof_of_possession(sig: &Signature, pubkey: &PublicKey) -> bool {
sig.verify(&ssz_encode(pubkey), 0, &pubkey)
}
/// Returns the withdrawal credentials for a given public key.
pub fn get_withdrawal_credentials(pubkey: &PublicKey, prefix_byte: u8) -> Vec<u8> {
let hashed = hash(&ssz_encode(pubkey));