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* Pyupgrade to Python 3.9
* updating DIRECTORY.md
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33 lines
952 B
Python
33 lines
952 B
Python
from __future__ import annotations
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def find_primitive(n: int) -> int | None:
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for r in range(1, n):
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li = []
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for x in range(n - 1):
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val = pow(r, x, n)
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if val in li:
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break
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li.append(val)
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else:
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return r
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return None
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if __name__ == "__main__":
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q = int(input("Enter a prime number q: "))
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a = find_primitive(q)
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if a is None:
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print(f"Cannot find the primitive for the value: {a!r}")
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else:
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a_private = int(input("Enter private key of A: "))
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a_public = pow(a, a_private, q)
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b_private = int(input("Enter private key of B: "))
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b_public = pow(a, b_private, q)
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a_secret = pow(b_public, a_private, q)
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b_secret = pow(a_public, b_private, q)
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print("The key value generated by A is: ", a_secret)
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print("The key value generated by B is: ", b_secret)
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