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+"""
+ The MIT License (MIT)
+
+ Copyright (C) 2017 Andris Raugulis (moo@arthepsy.eu)
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+"""
+# pylint: disable=unused-import
+from typing import Dict, List, Set, Sequence, Tuple, Iterable # noqa: F401
+from typing import Callable, Optional, Union, Any # noqa: F401
+
+from ssh_audit.ssh1_crc32 import SSH1_CRC32
+
+
+class SSH1:
+ _crc32: Optional[SSH1_CRC32] = None
+ CIPHERS = ['none', 'idea', 'des', '3des', 'tss', 'rc4', 'blowfish']
+ AUTHS = ['none', 'rhosts', 'rsa', 'password', 'rhosts_rsa', 'tis', 'kerberos']
+
+ @classmethod
+ def crc32(cls, v: bytes) -> int:
+ if cls._crc32 is None:
+ cls._crc32 = SSH1_CRC32()
+ return cls._crc32.calc(v)