diff options
| -rw-r--r-- | rsa/key.py | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -31,6 +31,7 @@ of pyasn1. """ +import abc import threading import typing import warnings @@ -48,7 +49,7 @@ DEFAULT_EXPONENT = 65537 T = typing.TypeVar("T", bound="AbstractKey") -class AbstractKey: +class AbstractKey(metaclass=abc.ABCMeta): """Abstract superclass for private and public keys.""" __slots__ = ("n", "e", "blindfac", "blindfac_inverse", "mutex") @@ -65,6 +66,7 @@ class AbstractKey: self.mutex = threading.Lock() @classmethod + @abc.abstractmethod def _load_pkcs1_pem(cls: typing.Type[T], keyfile: bytes) -> T: """Loads a key in PKCS#1 PEM format, implement in a subclass. @@ -77,6 +79,7 @@ class AbstractKey: """ @classmethod + @abc.abstractmethod def _load_pkcs1_der(cls: typing.Type[T], keyfile: bytes) -> T: """Loads a key in PKCS#1 PEM format, implement in a subclass. @@ -88,6 +91,7 @@ class AbstractKey: :rtype: AbstractKey """ + @abc.abstractmethod def _save_pkcs1_pem(self) -> bytes: """Saves the key in PKCS#1 PEM format, implement in a subclass. @@ -95,6 +99,7 @@ class AbstractKey: :rtype: bytes """ + @abc.abstractmethod def _save_pkcs1_der(self) -> bytes: """Saves the key in PKCS#1 DER format, implement in a subclass. |