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// 3. Secure persistence ------------------------------------------------------ private void SaveLicenseSecurely(LicensePayload payload)

// 1) Decode base64 segment that contains the digital signature // 2) Use the embedded public key (RSA 2048 or ECDSA P‑256) to verify // 3) Constant‑time comparison to avoid timing attacks finecam registration code

// Typically: key = <payload>.<signature> // Decrypt payload (AES‑GCM) using a per‑install random key that is wrapped // with the public key. Return a typed object. finecam registration code