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trezor-firmware/src/apps/common/cache.py

19 lines
358 B
Python

seed = None
def get_state():
global seed
if seed is None:
return None
else:
from trezor.crypto import bip32
from trezor.crypto.hashlib import blake2s
node = bip32.from_seed(seed, 'secp256k1')
state = blake2s(node.public_key()).digest()
return state
def clear():
global seed
seed = None