Security

A core challenge that Engine solves is providing a secure way to connect and interact with physical spaces. Deployments form an interface that isolates individual hardware components and subsystems of a building from direct communications. Connectivity to these is then provided by a modern API service that supports regular patching and updates to safely support integration.

Data in Transit

Engine API's and static resources are served over HTTPS only.

Supported Protocols
TLS v1.2
TLS v1.3

Supported Ciphers
EECDH+AESGCM
EDH+AESGCM
AES256+EECDH
AES256+EDH

Unique Diffie-Hellman parameters are generated for each new server.

SSL certificates can be provided and signed by your internal CA or generated by Place Technology and signed by Let’s Encrypt.

Data at Rest

Minimal configuration information is stored on disk as part of the on-premise infrastructure. All system settings support encryption via AES256-GCM. This is stored by the data service and includes:

Information Type	Description
System and Zone configuration	System (room) / Zone names System / Zone descriptions Room resource mailbox address (if using a calendar integration) System / Zone settings
Device settings	Device name Device description Device configuration Device role based account username (encrypted) Device role based account password
Device metadata	1 month history of online/offline status of each device
User data	Email address First and last name Username User’s permissions within Engine application Federated authentication source

The search service stores an optimised index of system, zone and device names and descriptions.

Authentication

All API requests use short-lived auth tokens obtained via OAuth2.

Authentication for token creation takes place via an external identify service (SSO). Options include SAML2 and OAuth2.

No Engine components store or have access to SSO user credentials at any point during authentication.

In cases where an external identify provider is not available (dev / staging environments), local role-based accounts may be created. Credentials for these are encrypted using scrypt (256 bit AES using GCM ciphers) prior to storage. No “default” passwords exist for these.

Privacy

No information is ever transmitted externally by the platform. Default deployment configurations do not include any remote telemetry, data collection or remote components.

Information collected by device and service integrations is dependent on driver functionality and versions used. All drivers are open source and individually auditable within each deployment.