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This is the Cryptography homework 3.

Usage

Installation

Please install pycryptodome using Python 3.10.

Part 1

First run alice.py and input the message. Run bob.py to decrypt the message.

Part 2

Run bob.py to generate bob's public and private keys. Run alice.py and enter a message. Run bob.py to decrypt the message.

Part 3

Run speed-test.py or speed-test-nokey.py`.

The difference between the two is that nokey doesn't generate a new key for each encryption and decryption.