def _pad(key, value, seeds, amplify_factor):
has_key = int(hashlib.md5(f"{key}".encode("ascii")).hexdigest(), 16)
# LOGGER.debug(f"hash_key: {has_key}")
cur_seeds = {uid: has_key + seed for uid, seed in seeds.items()}
# LOGGER.debug(f"cur_seeds: {cur_seeds}")
rands = {uid: RandomPads(v & 0xFFFFFFFF) for uid, v in cur_seeds.items()}
if isinstance(value, np.ndarray):
ret = value
for uid, rand in rands.items():
if uid > self._uuid:
ret = rand.add_rand_pads(ret, 1.0 * amplify_factor)
else:
ret = rand.add_rand_pads(ret, -1.0 * amplify_factor)
return key, ret
elif isinstance(value, Instance):
ret = value.features
for uid, rand in rands.items():
if uid > self._uuid:
ret = rand.add_rand_pads(ret, 1.0 * amplify_factor)
else:
ret = rand.add_rand_pads(ret, -1.0 * amplify_factor)
value.features = ret
return key, value
else:
ret = value
for uid, rand in rands.items():
if uid > self._uuid:
ret += rand.rand(1)[0] * self._amplify_factor
else:
ret -= rand.rand(1)[0] * self._amplify_factor
return key, ret
def set_exchanged_keys(self, keys):
self._seeds = {
uid: v & 0xffffffff
for uid, v in keys.items() if uid != self._uuid
}
self._rands = {
uid: RandomPads(v & 0xffffffff)
for uid, v in keys.items() if uid != self._uuid
}