diff options
Diffstat (limited to 'frozen_deps/Cryptodome/Hash/CMAC.py')
| -rw-r--r-- | frozen_deps/Cryptodome/Hash/CMAC.py | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/frozen_deps/Cryptodome/Hash/CMAC.py b/frozen_deps/Cryptodome/Hash/CMAC.py index e831700..8feb79f 100644 --- a/frozen_deps/Cryptodome/Hash/CMAC.py +++ b/frozen_deps/Cryptodome/Hash/CMAC.py @@ -242,11 +242,15 @@ class CMAC(object): raise ValueError("MAC check failed") def hexverify(self, hex_mac_tag): - """Return the **printable** MAC tag of the message authenticated so far. + """Verify that a given **printable** MAC (computed by another party) + is valid. - :return: The MAC tag, computed over the data processed so far. - Hexadecimal encoded. - :rtype: string + Args: + hex_mac_tag (string): the expected MAC of the message, as a hexadecimal string. + + Raises: + ValueError: if the MAC does not match. It means that the message + has been tampered with or that the MAC key is incorrect. """ self.verify(unhexlify(tobytes(hex_mac_tag))) |