first add files

lib/Crypto/PublicKey/RSA.pyi

@@ -0,0 +1,51 @@
+from typing import Callable, Union, Tuple, Optional
+
+__all__ = ['generate', 'construct', 'import_key',
+           'RsaKey', 'oid']
+
+RNG = Callable[[int], bytes]
+
+class RsaKey(object):
+    def __init__(self, **kwargs: int) -> None: ...
+    @property
+    def n(self) -> int: ...
+    @property
+    def e(self) -> int: ...
+    @property
+    def d(self) -> int: ...
+    @property
+    def p(self) -> int: ...
+    @property
+    def q(self) -> int: ...
+    @property
+    def u(self) -> int: ...
+    def size_in_bits(self) -> int: ...
+    def size_in_bytes(self) -> int: ...
+    def has_private(self) -> bool: ...
+    def can_encrypt(self) -> bool: ...  # legacy
+    def can_sign(self) -> bool:...     # legacy
+    def public_key(self) -> RsaKey: ...
+    def __eq__(self, other: object) -> bool: ...
+    def __ne__(self, other: object) -> bool: ...
+    def __getstate__(self) -> None: ...
+    def __repr__(self) -> str: ...
+    def __str__(self) -> str: ...
+    def export_key(self, format: Optional[str]="PEM", passphrase: Optional[str]=None, pkcs: Optional[int]=1,
+                   protection: Optional[str]=None, randfunc: Optional[RNG]=None) -> bytes: ...
+
+    # Backward compatibility
+    exportKey = export_key
+    publickey = public_key
+
+def generate(bits: int, randfunc: Optional[RNG]=None, e: Optional[int]=65537) -> RsaKey: ...
+def construct(rsa_components: Union[Tuple[int, int], #  n, e
+                                    Tuple[int, int, int], #  n, e, d
+                                    Tuple[int, int, int, int, int], #  n, e, d, p, q
+                                    Tuple[int, int, int, int, int, int]], #  n, e, d, p, q, crt_q
+              consistency_check: Optional[bool]=True) -> RsaKey: ...
+def import_key(extern_key: Union[str, bytes], passphrase: Optional[str]=None) -> RsaKey: ...
+
+# Backward compatibility
+importKey = import_key
+
+oid: str