def alice_bob_boxes():
alice_kp = init_keypair("alicekey")
bob_kp = init_keypair("bobkey")
# this is the DH key exchange part
bob_otwpk = get_pubkey(bob_kp, True)
alice_otwpk = get_pubkey(alice_kp, True)
bob_pk = init_pubkey(bob_otwpk)
alice_box = as_init_encryption(alice_kp, bob_pk)
alice_pk = init_pubkey(alice_otwpk, "alicepubkey")
bob_box = as_init_encryption(bob_kp, alice_pk)
# now Alice and Bob can use their 'box'
# constructs (both of which utilise the same
# shared secret) to perform encryption/decryption
# to test the encryption functionality
return (alice_box, bob_box)
def test_invalid_nacl_keys(alice_bob_boxes, invalid_pubkey):
with pytest.raises(NaclError) as e_info:
x = init_pubkey(invalid_pubkey)
with pytest.raises(NaclError) as e_info:
alice_kp = init_keypair()
box = as_init_encryption(alice_kp, invalid_pubkey)
#also try when using the wrong object type as a keypair
with pytest.raises(NaclError) as e_info:
alice_bad_kp = init_pubkey("02"*32)
box = as_init_encryption(alice_bad_kp, alice_bad_kp)
#try to load a pubkey from a non-keypair object
with pytest.raises(NaclError) as e_info:
pk = get_pubkey(invalid_pubkey)