def test_cipher_encrypt():
dealer = Dealer(p256, n_participants, s_secrets, access_structures)
dealer.cipher_generate_keys()
# Encrypt number
input = 299
key = dealer.cipher_keys[0]
ciphertext = dealer.cipher_encrypt(input, key)
assert_equal(len(ciphertext), Dealer.AES_BLOCK_SIZE)
def test_cipher_decrypt():
dealer = Dealer(p256, n_participants, s_secrets, access_structures)
dealer.cipher_generate_keys()
test_input = 'Test message'
ciphertext = dealer.cipher_encrypt(test_input, dealer.cipher_keys[-1])
assert_equal(len(ciphertext), Dealer.AES_BLOCK_SIZE)
plaintext = dealer.cipher_decrypt(ciphertext, dealer.cipher_keys[-1])
print('type of decrypted plaintext', type(plaintext))
assert_equal(plaintext.decode('utf-8'),
test_input) # decrypted data has type bytes