status-im
/
eth2.0-specs
mirror of https://github.com/status-im/eth2.0-specs.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Make deposit root the root of an SSZ vector

This commit is contained in:
Justin Drake 2019-06-29 08:39:27 +01:00
parent b21c9cc71b
commit ad943bbd06
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
deposit_contract/contracts/validator_registration.v.py
View File

@ -43,7 +43,8 @@ def to_little_endian_64(value: uint256) -> bytes[8]:
@public @public
@constant @constant
def get_deposit_root() -> bytes32: def get_deposit_root() -> bytes32:
node: bytes32 = 0x0000000000000000000000000000000000000000000000000000000000000000 zero_bytes32: bytes32 = 0x0000000000000000000000000000000000000000000000000000000000000000
node: bytes32 = zero_bytes32
size: uint256 = self.deposit_count size: uint256 = self.deposit_count
for height in range(DEPOSIT_CONTRACT_TREE_DEPTH): for height in range(DEPOSIT_CONTRACT_TREE_DEPTH):
if bitwise_and(size, 1) == 1: # More gas efficient than `size % 2 == 1` if bitwise_and(size, 1) == 1: # More gas efficient than `size % 2 == 1`
@ -51,7 +52,7 @@ def get_deposit_root() -> bytes32:
else: else:
node = sha256(concat(node, self.zero_hashes[height])) node = sha256(concat(node, self.zero_hashes[height]))
size /= 2 size /= 2
return node return sha256(concat(node, slice(zero_bytes32, start=0, len=24), self.to_little_endian_64(deposit_amount))
@public @public