Zymbit Zymkey 4i Hardware Security Module for Raspberry Pi

The Zymbit Zymkey 4i is a hardware security module (HSM) for Raspberry Pi that plugs directly onto the GPIO header, allowing a quick and straightforward installation that can be integrated even late in the design cycle. It provides multi-layered protection against both cyber and physical threats, making it suited to securing IoT applications and sensitive data.

With software support, the Zymkey 4i provides APIs in Python, C and C++, along with example code to simplify the integration of security features into your application. It is designed to work with standard Raspbian distributions, with optional support available for other Linux distributions.

Core Security Features

• Multi-Factor Identity and Authentication: Provides device identity and authentication mechanisms.
• Cryptographic Engine: Encrypts, signs and authenticates data.
• Key Generation and Secure Storage: Generates and stores cryptographic keys within tamper-resistant hardware.
• Physical Tamper Detection: Integrated sensors detect physical interference attempts.
• Root of Trust: The secure element serves as a hardware root of trust for the system.
• Remote Attestation: Enables verification of the host device's hardware configuration from a remote location.

Secure Element

At its core, the Zymkey 4i uses a secure element (SE) built with micro-grid protected silicon to store sensitive cryptographic resources. A dedicated security supervisor isolates the secure element from the host computer, adding further layers of defence.

The Zymkey 4i is suited to developers who need to add hardware-based security to Raspberry Pi projects.