def increment_legacy_tag(self):
"""
Increments the transaction's legacy tag, used to fix insecure
bundle hashes when finalizing a bundle.
References:
- https://github.com/iotaledger/iota.lib.py/issues/84
"""
self._legacy_tag = \
Tag.from_trits(add_trits(self.legacy_tag.as_trits(), [1]))
def increment_legacy_tag(self):
"""
Increments the transaction's legacy tag, used to fix insecure
bundle hashes when finalizing a bundle.
References:
- https://github.com/iotaledger/iota.lib.py/issues/84
"""
self._legacy_tag =\
Tag.from_trits(add_trits(self.legacy_tag.as_trits(), [1]))
def _create_sponge(self, index: int) -> Kerl:
"""
Prepares the hash sponge for the generator.
"""
seed = self.seed_as_trits[:]
sponge = Kerl()
sponge.absorb(add_trits(seed, trits_from_int(index)))
# Squeeze all of the trits out of the sponge and re-absorb them.
# Note that the sponge transforms several times per operation,
# so this sequence is not as redundant as it looks at first
# glance.
sponge.squeeze(seed)
sponge.reset()
sponge.absorb(seed)
return sponge
def _create_sponge(self, index):
# type: (int) -> Kerl
"""
Prepares the hash sponge for the generator.
"""
seed = self.seed_as_trits[:]
sponge = Kerl()
sponge.absorb(add_trits(seed, trits_from_int(index)))
# Squeeze all of the trits out of the sponge and re-absorb them.
# Note that the sponge transforms several times per operation, so
# this sequence is not as redundant as it looks at first glance.
sponge.squeeze(seed)
sponge.reset()
sponge.absorb(seed)
return sponge
def increment_legacy_tag(self):
sum = add_trits(self.legacy_tag.as_trits(), [1])
newSum = TryteString.from_trits(sum)
self.legacy_tag = newSum