Welcome

Welcome to Encedo HEM API

Welcome to Encedo HEM API! Encedo HEM is a commercial version of the Common Criteria certification pending product Encedo nGINE HSM v1.0.

The Encedo HEM is a general-purpose, natively Internet-oriented hardware security module (HSM) that provides advanced key management and basic cryptography functions, operating on the keys it manages. The HEM communicates with host systems through its network interface (Ethernet over a USB connection) and supports RESTful HTTP(s) based API.

There are two possible configurations (physical implementation) on the market:

• Encedo PPA (Personal Privacy Assistant), USB thumb drive size form factor, and

• Encedo EPA (Enterprise Privacy Appliance), 19” rack mount network appliance.

Encedo EPA 4 nodes versions

Encedo PPA in the spotlight

The version of this documentation

This documentation is for Encedo nGINE v.1.0 and is a part of a Common Criteria "Guidance documentation" (AGD) and covers all API operations.

This API is in version v1, and all endpoints, parameters, arguments, return data, or error codes are persistent.

However, the authors may update non-critical data in this documentation, such as comments, warnings, or descriptions, as part of their quality management process.

The certified configuration version is listed here.

Version: 1.4 (10.07.2025)

Want to jump right in?

Feeling like an eager beaver? Jump into the quick-start docs and get making your first request:

Quick Start

Want to get general information?

Get general information first before deep diving into API details.

General information

Want to deep dive?

Dive a little deeper and start exploring our API reference to get an idea of everything that's possible with the API:

API Reference

Have you found a bug?

Do not hesitate to contact us! Here is how to do this securely.

Report an issue