http_ece_encrypt_decrypt_with_shared_secret_rfc8188.py

1import os
2import http_ece
3
4# Generate a random 16-byte shared secret
5key = os.urandom(16)
6
7# The message to be encrypted
8data = b"Hello, world!"
9
10# Encrypt the data
11# The 'salt' is usually generated automatically if not provided, 
12# but can be specified for reproducibility.
13encrypted = http_ece.encrypt(data, key=key)
14
15# Decrypt the data
16# The decryption process extracts the salt and parameters from the 
17# encrypted binary if they were included (default behavior).
18decrypted = http_ece.decrypt(encrypted, key=key)
19
20print(f"Original: {data}")
21print(f"Encrypted: {encrypted.hex()}")
22print(f"Decrypted: {decrypted}")
23
24assert data == decrypted