def has_pubkey_for(address, decodedAddress):
# Can return True or False
# If we need the public key for our own address or a chan,
# we can compute it from the private key
if shared.config.has_section(address):
return True
# This is not an address where we know the private key.
# See if we already have the public key in our database:
_, toAddressVersion, toStreamNumber, toRipe = decodedAddress
queryReturn = sqlQuery(
"SELECT hash FROM pubkeys WHERE hash=? AND addressversion=?", toRipe,
toAddressVersion)
if queryReturn != []:
return True
if toAddressVersion >= 4: # If we are trying to send to address version >= 4 then the needed pubkey might be encrypted in the inventory.
# If we have it we'll need to decrypt it and put it in the pubkeys table.
_, toTag = compute_priv_encryption_key_and_tag(toAddressVersion,
toStreamNumber, toRipe)
queryreturn = sqlQuery(
'''SELECT payload FROM inventory WHERE objecttype='pubkey' and tag=? ''',
toTag)
if queryreturn != []: # if there was a pubkey in our inventory with the correct tag, we need to try to decrypt it.
for row in queryreturn:
data, = row
if shared.decryptAndCheckPubkeyPayload(
data, address) == 'successful':
return True
with shared.inventoryLock:
for hash, storedValue in shared.inventory.items():
objectType, streamNumber, payload, receivedTime, tag = storedValue
if objectType == 'pubkey' and tag == toTag:
result = shared.decryptAndCheckPubkeyPayload(
payload, address
) #if valid, this function also puts it in the pubkeys table.
if result == 'successful':
return True
# We don't have the public key in our database.
return False
def has_pubkey_for(address, decodedAddress):
# Can return True or False
# If we need the public key for our own address or a chan,
# we can compute it from the private key
if shared.config.has_section( address ):
return True
# This is not an address where we know the private key.
# See if we already have the public key in our database:
_, toAddressVersion, toStreamNumber, toRipe = decodedAddress
queryReturn = sqlQuery( "SELECT hash FROM pubkeys WHERE hash=? AND addressversion=?", toRipe, toAddressVersion)
if queryReturn != []:
return True
if toAddressVersion >= 4: # If we are trying to send to address version >= 4 then the needed pubkey might be encrypted in the inventory.
# If we have it we'll need to decrypt it and put it in the pubkeys table.
_, toTag = compute_priv_encryption_key_and_tag(toAddressVersion, toStreamNumber, toRipe)
queryreturn = sqlQuery(
'''SELECT payload FROM inventory WHERE objecttype='pubkey' and tag=? ''', toTag)
if queryreturn != []: # if there was a pubkey in our inventory with the correct tag, we need to try to decrypt it.
for row in queryreturn:
data, = row
if shared.decryptAndCheckPubkeyPayload(data, address) == 'successful':
return True
with shared.inventoryLock:
for hash, storedValue in shared.inventory.items():
objectType, streamNumber, payload, receivedTime, tag = storedValue
if objectType == 'pubkey' and tag == toTag:
result = shared.decryptAndCheckPubkeyPayload(payload, address) #if valid, this function also puts it in the pubkeys table.
if result == 'successful':
return True
# We don't have the public key in our database.
return False
def processpubkey(self, data):
pubkeyProcessingStartTime = time.time()
shared.numberOfPubkeysProcessed += 1
shared.UISignalQueue.put(('updateNumberOfPubkeysProcessed', 'no data'))
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
addressVersion, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
streamNumber, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
if addressVersion == 0:
logger.debug(
'(Within processpubkey) addressVersion of 0 doesn\'t make sense.'
)
return
if addressVersion > 4 or addressVersion == 1:
logger.info(
'This version of Bitmessage cannot handle version %s addresses.'
% addressVersion)
return
if addressVersion == 2:
if len(
data
) < 146: # sanity check. This is the minimum possible length.
logger.debug(
'(within processpubkey) payloadLength less than 146. Sanity check failed.'
)
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = data[readPosition:readPosition + 64]
# Is it possible for a public key to be invalid such that trying to
# encrypt or sign with it will cause an error? If it is, it would
# be easiest to test them here.
readPosition += 64
publicEncryptionKey = data[readPosition:readPosition + 64]
if len(publicEncryptionKey) < 64:
logger.debug(
'publicEncryptionKey length less than 64. Sanity check failed.'
)
return
readPosition += 64
dataToStore = data[
20:readPosition] # The data we'll store in the pubkeys table.
sha = hashlib.new('sha512')
sha.update('\x04' + publicSigningKey + '\x04' +
publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
logger.info(
'within recpubkey, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s' %
(addressVersion, streamNumber, ripe.encode('hex'),
publicSigningKey.encode('hex'),
publicEncryptionKey.encode('hex')))
queryreturn = sqlQuery(
'''SELECT usedpersonally FROM pubkeys WHERE hash=? AND addressversion=? AND usedpersonally='yes' ''',
ripe, addressVersion)
if queryreturn != []: # if this pubkey is already in our database and if we have used it personally:
logger.info(
'We HAVE used this pubkey personally. Updating time.')
t = (ripe, addressVersion, dataToStore, int(time.time()),
'yes')
else:
logger.info(
'We have NOT used this pubkey personally. Inserting in database.'
)
t = (ripe, addressVersion, dataToStore, int(time.time()), 'no')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
self.possibleNewPubkey(ripe=ripe)
if addressVersion == 3:
if len(data) < 170: # sanity check.
logger.warning(
'(within processpubkey) payloadLength less than 170. Sanity check failed.'
)
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
publicEncryptionKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
specifiedNonceTrialsPerByte, specifiedNonceTrialsPerByteLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedNonceTrialsPerByteLength
specifiedPayloadLengthExtraBytes, specifiedPayloadLengthExtraBytesLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedPayloadLengthExtraBytesLength
endOfSignedDataPosition = readPosition
dataToStore = data[
20:readPosition] # The data we'll store in the pubkeys table.
signatureLength, signatureLengthLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += signatureLengthLength
signature = data[readPosition:readPosition + signatureLength]
if highlevelcrypto.verify(data[8:endOfSignedDataPosition],
signature,
publicSigningKey.encode('hex')):
logger.debug('ECDSA verify passed (within processpubkey)')
else:
logger.warning('ECDSA verify failed (within processpubkey)')
return
sha = hashlib.new('sha512')
sha.update(publicSigningKey + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
logger.info(
'within recpubkey, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s' %
(addressVersion, streamNumber, ripe.encode('hex'),
publicSigningKey.encode('hex'),
publicEncryptionKey.encode('hex')))
queryreturn = sqlQuery(
'''SELECT usedpersonally FROM pubkeys WHERE hash=? AND addressversion=? AND usedpersonally='yes' ''',
ripe, addressVersion)
if queryreturn != []: # if this pubkey is already in our database and if we have used it personally:
logger.info(
'We HAVE used this pubkey personally. Updating time.')
t = (ripe, addressVersion, dataToStore, int(time.time()),
'yes')
else:
logger.info(
'We have NOT used this pubkey personally. Inserting in database.'
)
t = (ripe, addressVersion, dataToStore, int(time.time()), 'no')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
self.possibleNewPubkey(ripe=ripe)
if addressVersion == 4:
if len(data) < 350: # sanity check.
logger.debug(
'(within processpubkey) payloadLength less than 350. Sanity check failed.'
)
return
tag = data[readPosition:readPosition + 32]
if tag not in shared.neededPubkeys:
logger.info(
'We don\'t need this v4 pubkey. We didn\'t ask for it.')
return
# Let us try to decrypt the pubkey
toAddress, cryptorObject = shared.neededPubkeys[tag]
if shared.decryptAndCheckPubkeyPayload(data,
toAddress) == 'successful':
# At this point we know that we have been waiting on this pubkey.
# This function will command the workerThread to start work on
# the messages that require it.
self.possibleNewPubkey(address=toAddress)
# Display timing data
timeRequiredToProcessPubkey = time.time() - pubkeyProcessingStartTime
logger.debug('Time required to process this pubkey: %s' %
timeRequiredToProcessPubkey)
def processpubkey(self, data):
pubkeyProcessingStartTime = time.time()
shared.numberOfPubkeysProcessed += 1
shared.UISignalQueue.put((
'updateNumberOfPubkeysProcessed', 'no data'))
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
addressVersion, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
streamNumber, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
if addressVersion == 0:
logger.debug('(Within processpubkey) addressVersion of 0 doesn\'t make sense.')
return
if addressVersion > 4 or addressVersion == 1:
logger.info('This version of Bitmessage cannot handle version %s addresses.' % addressVersion)
return
if addressVersion == 2:
if len(data) < 146: # sanity check. This is the minimum possible length.
logger.debug('(within processpubkey) payloadLength less than 146. Sanity check failed.')
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = data[readPosition:readPosition + 64]
# Is it possible for a public key to be invalid such that trying to
# encrypt or sign with it will cause an error? If it is, it would
# be easiest to test them here.
readPosition += 64
publicEncryptionKey = data[readPosition:readPosition + 64]
if len(publicEncryptionKey) < 64:
logger.debug('publicEncryptionKey length less than 64. Sanity check failed.')
return
readPosition += 64
dataToStore = data[20:readPosition] # The data we'll store in the pubkeys table.
sha = hashlib.new('sha512')
sha.update(
'\x04' + publicSigningKey + '\x04' + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
logger.debug('within recpubkey, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s' % (addressVersion,
streamNumber,
ripe.encode('hex'),
publicSigningKey.encode('hex'),
publicEncryptionKey.encode('hex')
)
)
address = encodeAddress(addressVersion, streamNumber, ripe)
queryreturn = sqlQuery(
'''SELECT usedpersonally FROM pubkeys WHERE address=? AND usedpersonally='yes' ''', address)
if queryreturn != []: # if this pubkey is already in our database and if we have used it personally:
logger.info('We HAVE used this pubkey personally. Updating time.')
t = (address, addressVersion, dataToStore, int(time.time()), 'yes')
else:
logger.info('We have NOT used this pubkey personally. Inserting in database.')
t = (address, addressVersion, dataToStore, int(time.time()), 'no')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
self.possibleNewPubkey(address)
if addressVersion == 3:
if len(data) < 170: # sanity check.
logger.warning('(within processpubkey) payloadLength less than 170. Sanity check failed.')
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
publicEncryptionKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
specifiedNonceTrialsPerByte, specifiedNonceTrialsPerByteLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedNonceTrialsPerByteLength
specifiedPayloadLengthExtraBytes, specifiedPayloadLengthExtraBytesLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedPayloadLengthExtraBytesLength
endOfSignedDataPosition = readPosition
dataToStore = data[20:readPosition] # The data we'll store in the pubkeys table.
signatureLength, signatureLengthLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += signatureLengthLength
signature = data[readPosition:readPosition + signatureLength]
if highlevelcrypto.verify(data[8:endOfSignedDataPosition], signature, publicSigningKey.encode('hex')):
logger.debug('ECDSA verify passed (within processpubkey)')
else:
logger.warning('ECDSA verify failed (within processpubkey)')
return
sha = hashlib.new('sha512')
sha.update(publicSigningKey + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
logger.debug('within recpubkey, addressVersion: %s, streamNumber: %s \n\
ripe %s\n\
publicSigningKey in hex: %s\n\
publicEncryptionKey in hex: %s' % (addressVersion,
streamNumber,
ripe.encode('hex'),
publicSigningKey.encode('hex'),
publicEncryptionKey.encode('hex')
)
)
address = encodeAddress(addressVersion, streamNumber, ripe)
queryreturn = sqlQuery('''SELECT usedpersonally FROM pubkeys WHERE address=? AND usedpersonally='yes' ''', address)
if queryreturn != []: # if this pubkey is already in our database and if we have used it personally:
logger.info('We HAVE used this pubkey personally. Updating time.')
t = (address, addressVersion, dataToStore, int(time.time()), 'yes')
else:
logger.info('We have NOT used this pubkey personally. Inserting in database.')
t = (address, addressVersion, dataToStore, int(time.time()), 'no')
sqlExecute('''INSERT INTO pubkeys VALUES (?,?,?,?,?)''', *t)
self.possibleNewPubkey(address)
if addressVersion == 4:
if len(data) < 350: # sanity check.
logger.debug('(within processpubkey) payloadLength less than 350. Sanity check failed.')
return
tag = data[readPosition:readPosition + 32]
if tag not in shared.neededPubkeys:
logger.info('We don\'t need this v4 pubkey. We didn\'t ask for it.')
return
# Let us try to decrypt the pubkey
toAddress, cryptorObject = shared.neededPubkeys[tag]
if shared.decryptAndCheckPubkeyPayload(data, toAddress) == 'successful':
# At this point we know that we have been waiting on this pubkey.
# This function will command the workerThread to start work on
# the messages that require it.
self.possibleNewPubkey(toAddress)
# Display timing data
timeRequiredToProcessPubkey = time.time(
) - pubkeyProcessingStartTime
logger.debug('Time required to process this pubkey: %s' % timeRequiredToProcessPubkey)
def processpubkey(self, data):
pubkeyProcessingStartTime = time.time()
shared.numberOfPubkeysProcessed += 1
embeddedTime, = unpack('>Q', data[8:16])
readPosition = 20 # bypass the nonce, time, and object type
addressVersion, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
streamNumber, varintLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += varintLength
if addressVersion == 0:
return
if addressVersion > 4 or addressVersion == 1:
return
if addressVersion == 2:
if len(data) < 146: # sanity check. This is the minimum possible length.
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = data[readPosition:readPosition + 64]
# Is it possible for a public key to be invalid such that trying to
# encrypt or sign with it will cause an error? If it is, it would
# be easiest to test them here.
readPosition += 64
publicEncryptionKey = data[readPosition:readPosition + 64]
if len(publicEncryptionKey) < 64:
return
readPosition += 64
dataToStore = data[20:readPosition] # The data we'll store in the pubkeys table.
sha = hashlib.new('sha512')
sha.update(
'\x04' + publicSigningKey + '\x04' + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
address = encodeAddress(addressVersion, streamNumber, ripe)
if address not in shared.hadPubkeys.keys(): # if this pubkey is already in our database and if we have used it personally:
t = (address, addressVersion, dataToStore, int(time.time()), 'no')
shared.hadPubkeys[address] = t
shared.savePubkeyToFile()
self.possibleNewPubkey(address)
print "Received a pubkey for version 2 address:%s" % address
if addressVersion == 3:
if len(data) < 170: # sanity check.
return
bitfieldBehaviors = data[readPosition:readPosition + 4]
readPosition += 4
publicSigningKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
publicEncryptionKey = '\x04' + data[readPosition:readPosition + 64]
readPosition += 64
specifiedNonceTrialsPerByte, specifiedNonceTrialsPerByteLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedNonceTrialsPerByteLength
specifiedPayloadLengthExtraBytes, specifiedPayloadLengthExtraBytesLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += specifiedPayloadLengthExtraBytesLength
endOfSignedDataPosition = readPosition
dataToStore = data[20:readPosition] # The data we'll store in the pubkeys table.
signatureLength, signatureLengthLength = decodeVarint(
data[readPosition:readPosition + 10])
readPosition += signatureLengthLength
signature = data[readPosition:readPosition + signatureLength]
if not highlevelcrypto.verify(data[8:endOfSignedDataPosition], signature, publicSigningKey.encode('hex')):
return
sha = hashlib.new('sha512')
sha.update(publicSigningKey + publicEncryptionKey)
ripeHasher = hashlib.new('ripemd160')
ripeHasher.update(sha.digest())
ripe = ripeHasher.digest()
address = encodeAddress(addressVersion, streamNumber, ripe)
if address not in shared.hadPubkeys.keys():
t = (address, addressVersion, dataToStore, int(time.time()), 'no')
shared.hadPubkeys[address] = t
shared.savePubkeyToFile()
self.possibleNewPubkey(address)
print "Received a pubkey for version 3 address:%s" % address
if addressVersion == 4:
if len(data) < 350: # sanity check.
return
tag = data[readPosition:readPosition + 32]
if tag not in shared.neededPubkeys:
return
# Let us try to decrypt the pubkey
toAddress, cryptorObject = shared.neededPubkeys[tag]
if shared.decryptAndCheckPubkeyPayload(data, toAddress) == 'successful':
# At this point we know that we have been waiting on this pubkey.
# This function will command the workerThread to start work on
# the messages that require it.
self.possibleNewPubkey(toAddress)
# Display timing data
timeRequiredToProcessPubkey = time.time(
) - pubkeyProcessingStartTime