tests/test_integration.py
| 1 | """End-to-end integration tests.""" |
| 2 | |
| 3 | from __future__ import annotations |
| 4 | |
| 5 | from quantumshield.identity.agent import AgentIdentity |
| 6 | |
| 7 | from pqc_bootloader.audit import BootAttestationLog |
| 8 | from pqc_bootloader.firmware import FirmwareImage |
| 9 | from pqc_bootloader.key_ring import KeyRing |
| 10 | from pqc_bootloader.measured_boot import BootStage, MeasuredBoot |
| 11 | from pqc_bootloader.signer import FirmwareSigner, FirmwareVerifier |
| 12 | |
| 13 | |
| 14 | def test_full_boot_flow_accepted( |
| 15 | firmware_signer: FirmwareSigner, |
| 16 | sample_firmware: FirmwareImage, |
| 17 | trusted_key_ring: KeyRing, |
| 18 | ) -> None: |
| 19 | # 1. Manufacturer signs firmware at the factory. |
| 20 | signed = firmware_signer.sign(sample_firmware) |
| 21 | |
| 22 | # 2. Appliance boot ROM verifies signature + key-ring trust. |
| 23 | result = FirmwareVerifier.verify( |
| 24 | signed, |
| 25 | actual_bytes=sample_firmware.image_bytes, |
| 26 | key_ring=trusted_key_ring, |
| 27 | ) |
| 28 | assert result.valid is True |
| 29 | assert result.hash_consistent is True |
| 30 | assert result.key_trusted is True |
| 31 | assert result.signature_valid is True |
| 32 | |
| 33 | # 3. Measured boot extends through rom, bootloader, kernel, initrd. |
| 34 | mb = MeasuredBoot() |
| 35 | mb.extend(BootStage.ROM, b"rom-v1") |
| 36 | mb.extend(BootStage.BOOTLOADER, b"bootloader-v1") |
| 37 | mb.extend(BootStage.KERNEL, b"kernel-v1") |
| 38 | mb.extend(BootStage.INITRD, b"initrd-v1") |
| 39 | assert len(mb.measurements) == 4 |
| 40 | assert mb.pcr_value != "0" * 64 |
| 41 | |
| 42 | # 4. Audit log records the acceptance. |
| 43 | log = BootAttestationLog() |
| 44 | entry = log.log_accept( |
| 45 | firmware_name=signed.firmware.metadata.name, |
| 46 | firmware_version=signed.firmware.metadata.version, |
| 47 | firmware_hash=signed.firmware.image_hash, |
| 48 | device_id="device-0001", |
| 49 | pcr_value_after=mb.pcr_value, |
| 50 | ) |
| 51 | assert entry.decision == "accept" |
| 52 | assert entry.pcr_value_after == mb.pcr_value |
| 53 | assert len(log.entries(decision="accept")) == 1 |
| 54 | |
| 55 | |
| 56 | def test_rejected_firmware_path( |
| 57 | sample_firmware: FirmwareImage, |
| 58 | trusted_key_ring: KeyRing, |
| 59 | ) -> None: |
| 60 | # Rogue identity signs firmware; key ring does NOT trust it. |
| 61 | rogue = AgentIdentity.create("rogue-attacker") |
| 62 | rogue_signer = FirmwareSigner(rogue) |
| 63 | signed = rogue_signer.sign(sample_firmware) |
| 64 | |
| 65 | result = FirmwareVerifier.verify( |
| 66 | signed, |
| 67 | actual_bytes=sample_firmware.image_bytes, |
| 68 | key_ring=trusted_key_ring, |
| 69 | ) |
| 70 | assert result.valid is False |
| 71 | assert result.key_trusted is False |
| 72 | |
| 73 | log = BootAttestationLog() |
| 74 | entry = log.log_reject( |
| 75 | firmware_name=signed.firmware.metadata.name, |
| 76 | firmware_version=signed.firmware.metadata.version, |
| 77 | firmware_hash=signed.firmware.image_hash, |
| 78 | reason=result.error or "untrusted key", |
| 79 | device_id="device-0001", |
| 80 | ) |
| 81 | assert entry.decision == "reject" |
| 82 | assert "not trusted" in entry.reason |
| 83 | assert len(log.entries(decision="reject")) == 1 |
| 84 | |