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from typing import Dict, Tuple
import abc
class CryptoCallError(ValueError):
pass
class CryptoCaller(abc.ABC):
"""Abstract base class for `CryptoCaller`s - an interface that
encapsulates basic password and TLS cert related functions
needed by the Ceph MGR.
"""
@abc.abstractmethod
def create_private_key(self) -> str:
"""Create a new TLS private key, returning it as a string."""
@abc.abstractmethod
def create_self_signed_cert(
self, dname: Dict[str, str], pkey: str
) -> str:
"""Given TLS certificate subject parameters and a private key,
create a new self signed certificate - returned as a string.
"""
@abc.abstractmethod
def verify_tls(self, crt: str, key: str) -> None:
"""Given a TLS certificate and a private key raise an error
if the combination is not valid.
"""
@abc.abstractmethod
def certificate_days_to_expire(self, crt: str) -> int:
"""Return the number of days until the given TLS certificate expires."""
@abc.abstractmethod
def get_cert_issuer_info(self, crt: str) -> Tuple[str, str]:
"""Basic validation of a ca cert"""
@abc.abstractmethod
def password_hash(self, password: str, salt_password: str) -> str:
"""Hash a password. Returns the hashed password as a string."""
@abc.abstractmethod
def verify_password(self, password: str, hashed_password: str) -> bool:
"""Return true if a password and hash match."""