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Scrypt verification

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This commit is contained in:
Vivek Teega 2019-01-29 04:57:29 +00:00
parent e28b8806ac
commit eb418f1d3e
1 changed files with 4 additions and 4 deletions
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8
electrum/blockchain.py
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@ -267,7 +267,7 @@ class Blockchain(util.PrintError):
@classmethod
def verify_header(cls, header: dict, prev_hash: str, target: int, expected_header_hash: str=None) -> None:
_hash = hash_header(header)
#_powhash = pow_hash_header(header)
_powhash = pow_hash_header(header)
if expected_header_hash and expected_header_hash != _hash:
raise Exception("hash mismatches with expected: {} vs {}".format(expected_header_hash, _hash))
if prev_hash != header.get('prev_block_hash'):
@ -279,9 +279,9 @@ class Blockchain(util.PrintError):
if bits != header.get('bits'):
raise Exception("bits mismatch: %s vs %s" % (bits, header.get('bits')))
block_hash_as_num = int.from_bytes(bfh(_hash), byteorder='big')
#target_val = cls.bits_to_target(bits)
#if int('0x' + _powhash, 16) > target_val:
# raise Exception("insufficient proof of work: %s vs target %s" % (int('0x' + _hash, 16), target_val))
target_val = cls.bits_to_target(bits)
if int('0x' + _powhash, 16) > target_val:
raise Exception("insufficient proof of work: %s vs target %s" % (int('0x' + _hash, 16), target_val))
def verify_chunk(self, index: int, data: bytes) -> None:
num = len(data) // HEADER_SIZE