def throw_wrong_type():
private_key = ExtendedPrivateKey.from_seed(b"foo").get_private_key()
message_hash = bytes([10] * 32)
sig_prepend = private_key.sign_prepend_prehashed(message_hash).serialize()
sig_secure = private_key.sign_prehashed(message_hash).serialize()
try:
Signature.from_bytes(sig_prepend)
except ValueError:
try:
PrependSignature.from_bytes(sig_secure)
except ValueError:
return
assert False
assert False
def no_throw_bad_sig():
private_key = ExtendedPrivateKey.from_seed(b"foo").get_private_key()
message_hash = bytes([9] * 32)
sig = private_key.sign_prepend_prehashed(message_hash).serialize()
sig = sig[:-1] + bytes([0])
public_key = private_key.get_public_key()
try:
bad_signature = PrependSignature.from_bytes(sig)
except ValueError:
return
assert (False)
def signature_from_string(signature):
try:
sig = PrependSignature.from_bytes(bytes.fromhex(signature))
except Exception:
raise Exception
return sig