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state_processing: verify_deposit v0.6.0

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This commit is contained in:
Michael Sproul 2019-05-13 17:28:37 +10:00
parent 4f138fa3fe
commit 2751be9a05
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GPG Key ID: 77B1309D2E54E914
1 changed files with 2 additions and 26 deletions
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28
eth2/state_processing/src/per_block_processing/verify_deposit.rs
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@ -88,9 +88,9 @@ pub fn get_existing_validator_index(
/// Verify that a deposit is included in the state's eth1 deposit root. /// Verify that a deposit is included in the state's eth1 deposit root.
/// ///
/// Spec v0.5.1 /// Spec v0.6.0
fn verify_deposit_merkle_proof(state: &BeaconState, deposit: &Deposit, spec: &ChainSpec) -> bool { fn verify_deposit_merkle_proof(state: &BeaconState, deposit: &Deposit, spec: &ChainSpec) -> bool {
let leaf = hash(&get_serialized_deposit_data(deposit)); let leaf = deposit.data.tree_hash_root();
verify_merkle_proof( verify_merkle_proof(
Hash256::from_slice(&leaf), Hash256::from_slice(&leaf),
&deposit.proof, &deposit.proof,
@ -99,27 +99,3 @@ fn verify_deposit_merkle_proof(state: &BeaconState, deposit: &Deposit, spec: &Ch
state.latest_eth1_data.deposit_root, state.latest_eth1_data.deposit_root,
) )
} }
/// Helper struct for easily getting the serialized data generated by the deposit contract.
///
/// Spec v0.5.1
#[derive(Encode)]
struct SerializedDepositData {
amount: u64,
timestamp: u64,
input: DepositInput,
}
/// Return the serialized data generated by the deposit contract that is used to generate the
/// merkle proof.
///
/// Spec v0.5.1
fn get_serialized_deposit_data(deposit: &Deposit) -> Vec<u8> {
let serialized_deposit_data = SerializedDepositData {
amount: deposit.deposit_data.amount,
timestamp: deposit.deposit_data.timestamp,
input: deposit.deposit_data.deposit_input.clone(),
};
ssz_encode(&serialized_deposit_data)
}