29 lines
726 B
Python
29 lines
726 B
Python
import socket
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import time
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from Crypto.Cipher import ChaCha20_Poly1305
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# The server's address and port
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server_address = ('localhost', 5171)
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# Create a UDP socket
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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# The message to be sent
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message = ('Hello, Server! ' + str(time.time())).encode()
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# The key and nonce
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key = bytes.fromhex('example123')
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# Encrypt the message
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cipher = ChaCha20_Poly1305.new(key=key)
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ciphertext, tag = cipher.encrypt_and_digest(message)
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# Send the encrypted message to the server
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sock.sendto(cipher.nonce + ciphertext + tag, server_address)
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sock.close()
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cipher = ChaCha20_Poly1305.new(key=key, nonce=cipher.nonce)
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plaintext = cipher.decrypt_and_verify(ciphertext, tag)
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print(plaintext)
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