def test_anybody_can_verify():
"""
In the last example, we used the lower-level Crypto API to verify the signature.
Here, we show that anybody can do it without needing to directly access Crypto.
"""
# Alice can sign by default, by dint of her _default_crypto_powerups.
alice = Alice(federated_only=True, always_be_learning=False)
# So, our story is fairly simple: an everyman meets Alice.
somebody = Character(always_be_learning=False, federated_only=True)
# Alice signs a message.
message = b"A message for all my friends who can only verify and not sign."
signature = alice.stamp(message)
# Our everyman can verify it.
cleartext = somebody.verify_from(alice, message, signature, decrypt=False)
assert cleartext is constants.NO_DECRYPTION_PERFORMED
def test_anybody_can_verify(nucypher_test_config, mock_policy_agent):
"""
In the last example, we used the lower-level Crypto API to verify the signature.
Here, we show that anybody can do it without needing to directly access Crypto.
"""
# Alice can sign by default, by dint of her _default_crypto_powerups.
alice = Alice(config=nucypher_test_config, policy_agent=mock_policy_agent)
# So, our story is fairly simple: an everyman meets Alice.
somebody = Character(config=nucypher_test_config)
# Alice signs a message.
message = b"A message for all my friends who can only verify and not sign."
signature = alice.stamp(message)
# Our everyman can verify it.
verification, cleartext = somebody.verify_from(alice,
message,
signature,
decrypt=False)
assert verification is True
assert cleartext is constants.NO_DECRYPTION_PERFORMED
