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Merge pull request #573 from ethereum/hwwhww/verify_bitfield

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Fix `verify_bitfield`
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Danny Ryan 2019-02-05 18:57:40 -08:00 committed by GitHub
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1 changed files with 2 additions and 1 deletions
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specs/core/0_beacon-chain.md
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@ -1099,7 +1099,8 @@ def verify_bitfield(bitfield: bytes, committee_size: int) -> bool:
if len(bitfield) != (committee_size + 7) // 8: if len(bitfield) != (committee_size + 7) // 8:
return False return False
for i in range(committee_size + 1, committee_size - committee_size % 8 + 8): # Check `bitfield` is padded with zero bits only
for i in range(committee_size, len(bitfield) * 8):
if get_bitfield_bit(bitfield, i) == 0b1: if get_bitfield_bit(bitfield, i) == 0b1:
return False return False