Files
ai-training/tests/test_encryption.py
T

95 lines
2.4 KiB
Python

import os
import pytest
from security import Security
def test_bt_enc_01_roundtrip_1024_random_bytes():
key = "test-key"
data = os.urandom(1024)
enc = Security.encrypt_to(data, key)
assert Security.decrypt_to(enc, key) == data
def test_bt_enc_02_roundtrip_onnx_model(fixture_onnx_model):
key = Security.get_model_encryption_key()
data = fixture_onnx_model
enc = Security.encrypt_to(data, key)
assert Security.decrypt_to(enc, key) == data
def test_bt_enc_03_roundtrip_empty_input():
key = "k"
data = b""
enc = Security.encrypt_to(data, key)
assert Security.decrypt_to(enc, key) == b""
def test_bt_enc_04_roundtrip_single_zero_byte():
key = "k"
data = b"\x00"
enc = Security.encrypt_to(data, key)
assert Security.decrypt_to(enc, key) == b"\x00"
def test_bt_enc_05_same_data_different_keys_different_ciphertext():
data = b"payload"
a = Security.encrypt_to(data, "key-a")
b = Security.encrypt_to(data, "key-b")
assert a != b
def test_bt_enc_06_decrypt_wrong_key_not_equal_original():
original = b"secret"
enc = Security.encrypt_to(original, "key-a")
out = Security.decrypt_to(enc, "key-b")
assert out != original
@pytest.mark.resilience
def test_rt_enc_01_corrupted_ciphertext():
key = "k"
original = b"hello world"
enc = Security.encrypt_to(original, key)
corrupted = bytearray(enc)
corrupted[len(corrupted) // 2] ^= 0xFF
try:
result = Security.decrypt_to(bytes(corrupted), key)
except Exception:
return
assert result != original
@pytest.mark.security
def test_st_enc_01_same_data_same_key_two_encryptions_differ():
key = "k"
data = b"x" * 64
a = Security.encrypt_to(data, key)
b = Security.encrypt_to(data, key)
assert a != b
@pytest.mark.security
def test_st_enc_02_wrong_key_cannot_recover_plaintext():
original = b"data"
enc = Security.encrypt_to(original, "key-one")
out = Security.decrypt_to(enc, "key-two")
assert out != original
@pytest.mark.security
def test_st_enc_03_model_encryption_key_deterministic():
a = Security.get_model_encryption_key()
b = Security.get_model_encryption_key()
assert a == b
@pytest.mark.resource_limit
def test_rl_enc_01_encrypted_size_at_most_plaintext_plus_32():
key = "k"
for n in (0, 1, 15, 16, 17, 1024, 4096):
data = os.urandom(n)
enc = Security.encrypt_to(data, key)
assert len(enc) <= n + 32