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import typing as t
if t.TYPE_CHECKING:
from gssapi.raw.named_tuples import WrapResult, UnwrapResult
from gssapi.raw.sec_contexts import SecurityContext
def wrap_aead(
context: "SecurityContext",
message: bytes,
associated: t.Optional[bytes] = None,
confidential: bool = True,
qop: t.Optional[int] = None,
) -> "WrapResult":
"""Wrap/Encrypt an AEAD message.
This method takes an input message and associated data,
and outputs and AEAD message.
Args:
context (~gssapi.raw.sec_contexts.SecurityContext): the current
security context
message (bytes): the message to wrap or encrypt
associated (bytes): associated data to go with the message
confidential (bool): whether or not to encrypt the message (True),
or just wrap it with a MIC (False)
qop (int): the desired Quality of Protection
(or None for the default QoP)
Returns:
WrapResult: the wrapped/encrypted total message, and whether or not
encryption was actually used
Raises:
~gssapi.exceptions.GSSError
"""
def unwrap_aead(
context: "SecurityContext",
message: bytes,
associated: t.Optional[bytes] = None,
) -> "UnwrapResult":
"""Unwrap/Decrypt an AEAD message.
This method takes an encrpyted/wrapped AEAD message and some associated
data, and returns an unwrapped/decrypted message.
Args:
context (~gssapi.raw.sec_contexts.SecurityContext): the current
security context
message (bytes): the AEAD message to unwrap or decrypt
associated (bytes): associated data that goes with the message
Returns:
UnwrapResult: the unwrapped/decrypted message, whether or on
encryption was used, and the QoP used
Raises:
~gssapi.exceptions.GSSError
"""