Secure communication systems
Research
Messages that stay protected on the devices.
A research track for encrypted messaging, privacy-first mobile devices, protected local data and hardware-backed identity.
There is no HOLK TECH handset for sale, no published protocol and no security certification. The diagram is a teaching model.
Research
The sending device prepares the message on the device.
Research
The payload is protected before it leaves. This website never holds the keys.
Research
The network is a carrier in the model. It is not a live HOLK TECH service.
Research
The receiving device recovers the message. Local storage and erasure are later design steps.
What this work covers
- End-to-end encryption as a design rule: the carrier of a message is not the place where it is read.
- A privacy-first mobile architecture, with the radio, the screen and protected storage treated as separate parts.
- Hardware-backed identity, so a device can prove itself without publishing a private key.
- A deliberate erasure path when a device is lost or retired.
Related lab projects
- Secure Mobile Systems · Research