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# Copyright (c) 2014-2021 by Ron Frederick <ronf@timeheart.net> and others.
#
# This program and the accompanying materials are made available under
# the terms of the Eclipse Public License v2.0 which accompanies this
# distribution and is available at:
#
# http://www.eclipse.org/legal/epl-2.0/
#
# This program may also be made available under the following secondary
# licenses when the conditions for such availability set forth in the
# Eclipse Public License v2.0 are satisfied:
#
# GNU General Public License, Version 2.0, or any later versions of
# that license
#
# SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
#
# Contributors:
# Ron Frederick - initial implementation, API, and documentation
"""A shim for accessing cryptographic primitives needed by asyncssh"""
from .cipher import BasicCipher, GCMCipher, register_cipher, get_cipher_params
from .dsa import DSAPrivateKey, DSAPublicKey
from .ec import ECDSAPrivateKey, ECDSAPublicKey, ECDH
from .ed import ed25519_available, ed448_available
from .ed import curve25519_available, curve448_available
from .ed import EdDSAPrivateKey, EdDSAPublicKey, Curve25519DH, Curve448DH
from .ec_params import lookup_ec_curve_by_params
from .kdf import pbkdf2_hmac
from .misc import CryptoKey, PyCAKey
from .rsa import RSAPrivateKey, RSAPublicKey
# Import chacha20-poly1305 cipher if available
from .chacha import ChachaCipher, chacha_available
# Import umac cryptographic hash if available
try:
from .umac import umac32, umac64, umac96, umac128
except (ImportError, AttributeError, OSError): # pragma: no cover
pass
# Import X.509 certificate support if available
try:
from .x509 import X509Certificate, X509Name, X509NamePattern
from .x509 import generate_x509_certificate, import_x509_certificate
except ImportError: # pragma: no cover
pass
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