£Á°èZ¨Ä…–K§‚«“ô4“ÒÙ´dîfUÙÃÅ WKbyÊ¦•êŽ…È®FÒ¿ÊÎóCozá¬S@6{Í:›œêZÌ:Š•_%:¢¾¾~;‘Ã~èŠ©ÊÇí`ÔÑ©úë™µ'5I¿fš×WO%ø9¾«¾DK|€ùÍD”Ýs]nHÕ¶ê×Ó¼ãžªéUWŸÈË%DÒÕ¬ï‘]/Åcx  ‰ï2ß]ä6G[]S£ÔÏ¯rs{úëóµmÒï#UQxo·õÞCe]"±/aÙ&Eã4ú9Jé_ÞåëdãöKë)AÞ                  ¯¹ægƒÛowÐø^d™ý½ßB7áyMä9ÜÖUã
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
<html>
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import annotations

from cryptography.hazmat.primitives._cipheralgorithm import (
    BlockCipherAlgorithm,
    CipherAlgorithm,
    _verify_key_size,
)


class ARC4(CipherAlgorithm):
    name = "RC4"
    key_sizes = frozenset([40, 56, 64, 80, 128, 160, 192, 256])

    def __init__(self, key: bytes):
        self.key = _verify_key_size(self, key)

    @property
    def key_size(self) -> int:
        return len(self.key) * 8


class TripleDES(BlockCipherAlgorithm):
    name = "3DES"
    block_size = 64
    key_sizes = frozenset([64, 128, 192])

    def __init__(self, key: bytes):
        if len(key) == 8:
            key += key + key
        elif len(key) == 16:
            key += key[:8]
        self.key = _verify_key_size(self, key)

    @property
    def key_size(self) -> int:
        return len(self.key) * 8


class Blowfish(BlockCipherAlgorithm):
    name = "Blowfish"
    block_size = 64
    key_sizes = frozenset(range(32, 449, 8))

    def __init__(self, key: bytes):
        self.key = _verify_key_size(self, key)

    @property
    def key_size(self) -> int:
        return len(self.key) * 8


class CAST5(BlockCipherAlgorithm):
    name = "CAST5"
    block_size = 64
    key_sizes = frozenset(range(40, 129, 8))

    def __init__(self, key: bytes):
        self.key = _verify_key_size(self, key)

    @property
    def key_size(self) -> int:
        return len(self.key) * 8


class SEED(BlockCipherAlgorithm):
    name = "SEED"
    block_size = 128
    key_sizes = frozenset([128])

    def __init__(self, key: bytes):
        self.key = _verify_key_size(self, key)

    @property
    def key_size(self) -> int:
        return len(self.key) * 8


class IDEA(BlockCipherAlgorithm):
    name = "IDEA"
    block_size = 64
    key_sizes = frozenset([128])

    def __init__(self, key: bytes):
        self.key = _verify_key_size(self, key)

    @property
    def key_size(self) -> int:
        return len(self.key) * 8


# This class only allows RC2 with a 128-bit key. No support for
# effective key bits or other key sizes is provided.
class RC2(BlockCipherAlgorithm):
    name = "RC2"
    block_size = 64
    key_sizes = frozenset([128])

    def __init__(self, key: bytes):
        self.key = _verify_key_size(self, key)

    @property
    def key_size(self) -> int:
        return len(self.key) * 8