56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
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# modes/decrypt.py
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from __future__ import annotations
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from typing import Dict, Any, List
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class DecryptMode:
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def run(
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self,
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*,
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c: int | List[int],
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n: int,
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d: int,
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) -> Dict[str, Any]:
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# Один блок
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if isinstance(c, int):
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plain = pow(c, d, n) # Дешифратор
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char = chr(plain) if 0 <= plain < 128 else None
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return {
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"mode": "int",
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"input": {
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"cipher": c,
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"hex_in": hex(c),
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},
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"output": {
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"ascii": plain,
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"char": char,
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"hex_out": hex(plain),
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},
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}
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# Несколько блоков (список чисел)
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if isinstance(c, list):
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result: List[Dict[str, Any]] = []
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text = ""
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for block in c:
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plain = pow(block, d, n) # Дешифратор
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char = chr(plain) if 0 <= plain < 128 else None
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if char:
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text += char
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result.append({
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"cipher": block,
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"hex_in": hex(block),
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"ascii": plain,
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"char": char,
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"hex_out": hex(plain),
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})
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return {
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"mode": "list",
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"input": c,
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"output": result,
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"text": text,
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}
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raise ValueError("c должен быть числом или списком чисел")
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