Launched in 2017, an important innovation of the Calypso Prime rev. 3.3 was the introduction of optionnal PKI mechanisms which allow a dynamic authentication of the portable object without Secure Module or the delegation of authority without transfer of secrets.

This feature becomes all the more interesting if we think of the new forms of mobility that are appearing, which are by nature contrary to the integration of SAM for their unlocking system: trotinettes or bicycles in free floating, car sharing, etc.

The specifications are avalable to all Calypso Networks Association members since October 2019 on the Technical Calypso Website 


Published in October 2019


In order to ensure more and more the openness of the Calypso Standard,  CNA has just published a new specification about Security Architecture and Key Ceremony.


This document defines the rules ensuring interoperability and interchangeability of key management systems designed by providers of Calypso secret keys:

- The owner of the keys (e.g. public transport authority) has full control over its keys, always being able to entrust them to any third party of its choice by itself, for any evolution of its system;

- The owner of the keys may freely and securely have secure application modules (SAM) manufactured with its keys by the provider of its choice.

In addition to these rules, those specifications also contains recommendations for the design of a Calypso Key Ceremony with suitable balance among security and constraints. This new specification will allows transport networks to freely choose different providers of its personalized SAMs and Key Ceremony at any time.


Published the 5th March 2018


Since 2014, CNA has been delivering 18 certificates to Calypso portable objects for their compliance with the Calypso Rev 3.1 specifications.


These certificates guarantee that these Portable Objects will have a same functional behavior with a terminal which integrates a Calypso application. In 2017, CNA launched the Calypso Light Application for Portable Objects (CLAP), a middle end product with streamlined features, and rolled out a dedicated certification process.


For Portable Objects, by combining  a Calypso certification at the functional level and a CEN/TS 16794 certification for the contactless interface, operators benefit from an end-to-end certification which enables to set-up mind free operational schemes of interoperability.


Published the 27th February 2018