Nitro License Check <UHD>

| Attack Vector | Mitigation | |---------------|-------------| | Static key extraction | Use or rely on remote attestation (no local symmetric secrets). | | Time tampering | Query a trusted time server (Google, Cloudflare) over HTTPS, fallback to secure monotonic clock. | | Hardware cloning | Use TPM 2.0 or Apple Secure Enclave to seal license data to the genuine device. | | Return value patching | Scatter integrity checks throughout the code; check license state in multiple unrelated functions (e.g., inside rendering loops, file save handlers). | | HTTP spoofing | Implement certificate pinning and sign the server response with an Ed25519 key; verify signature before accepting. | | Debugging | Use anti-debug tricks ( IsDebuggerPresent , NtQueryInformationProcess , timing checks, TLS callbacks). |