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PyBitmessage
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enable delayed POW checks 

enable delayed POW checks via optional "receive time" argument
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f97ada87 2018-05-23 03:38:05 +00:00 committed by GitHub
parent 74ddda8775
commit 609a4a92e2
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1 changed files with 3 additions and 2 deletions
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5
src/protocol.py
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@ -168,13 +168,14 @@ def checkSocksIP(host):
def isProofOfWorkSufficient(data,
nonceTrialsPerByte=0,
payloadLengthExtraBytes=0):
payloadLengthExtraBytes=0,
recvTime=0):
if nonceTrialsPerByte < defaults.networkDefaultProofOfWorkNonceTrialsPerByte:
nonceTrialsPerByte = defaults.networkDefaultProofOfWorkNonceTrialsPerByte
if payloadLengthExtraBytes < defaults.networkDefaultPayloadLengthExtraBytes:
payloadLengthExtraBytes = defaults.networkDefaultPayloadLengthExtraBytes
endOfLifeTime, = unpack('>Q', data[8:16])
TTL = endOfLifeTime - int(time.time())
TTL = endOfLifeTime - (recvTime if recvTime else int(time.time()))
if TTL < 300:
TTL = 300
POW, = unpack('>Q', hashlib.sha512(hashlib.sha512(data[