blob: 66025d9727bc1f2b662966510106db0b1dd50a2f [file] [log] [blame]
#!/usr/bin/env python3
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to you under the Apache License, Version 2.0 (the
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import os
import sys
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
from amcl import core_utils, rsa_WWW
seed_hex = "78d0fb6705ce77dee47d03eb5b9c5d30"
e = 0x10001
if __name__ == "__main__":
seed = bytes.fromhex(seed_hex)
rng = core_utils.create_csprng(seed)
m = b'test message'
print('Generate key pair')
public_key, private_key = rsa_WWW.generate_key_pair(rng, e)
print(f"\nEncode message '{m.decode('utf-8')}'")
pt, rc = rsa_WWW.oaep_encode(rng, rsa_WWW.SHA256, m)
assert rc == 0, 'Failure OAEP padding message'
print(f"\nEncrypt plaintext '{pt.hex()}'")
ct = rsa_WWW.encrypt(public_key, pt)
print(f"\nDecrypt cyphertext {ct.hex()}")
dec_pt = rsa_WWW.decrypt(private_key, ct)
print(f"\nDecode plaintext '{dec_pt.hex()}'")
dec_m, rc = rsa_WWW.oaep_decode(rsa_WWW.SHA256, dec_pt)
assert rc == 0, 'Failure OAEP unpadding message'
print(f"Recovered message '{dec_m.decode('utf-8')}'")