Calypso Event - 2018 Members Welcome Day

Save The Date 11-12 April 2018, Day of exchanges in Milano & Technical visit in Torino

Event reserved to CNA members

The Welcome Day is the occasion to learn more about Calypso, its last on-field expansions directly reported by CNA members, about the main CNA projects and the technical Working groups. It will be the opportunity of fruitful exchanges with the other members and the Calypso experts.



11th April : Welcome Day - Milan

- Presentation of CNA activities, support and strategy.

- Development of Calypso in the world

- Interactive Technical Workshops

- Presentation of new members

Followed by a cocktail diner offered by CNA

12th April : Technical visit - Torino

Discover the Piedmont ticketing system, one of the most advanced in the Calypso world.


More info to come

Register Here

For any question, contact


CNA is at IT-TRANS Karlsruhe 6 - 8 March 2018

Come and visit us in the dm-arena, booth C21.
Don't miss our sessions about Open Source SDK and Blockchain forcast for ticketing


Take advantage of one of the biggest events in transportation and ticketing in order to exchange with our dediacted team about mobile solution, Calypso products,  interoperability and much more.


Want to know more about the Calypso Open Source SDK ? Be there the 7th of March 2018 at 11 a.m, Conference Room 4/5 to assist to the presentation of Philippe Vappereau, CNA Chairman.


We also be part of the Smart Ticketing Lecture the 8th of March from 9 am to 10.30, Conference Room West : Blockchain Forecast: Opportunities for Mobility and Ticketing. by Valentina Zajackowski, Marketing Manager, Calypso Networks Association.


See you in Karlsruhe !

Calypso HCE Solution For NFC devices without S.E.

When it is not Possible to implement a secure Calypso applet into a Secure Element,
CNA has defined an HCE-based solution for Android and mobile phones

This solution is based on two documents: the Calypso HCE application specifications and the Calypso HCE Guidelines.


Many Calypso networks aim at providing to their customer a ticketing solution for Android mobile phones, while preserving as much as possible compatibility with their installed AFC system, in particular with the validators.


CNA provides a solution with an acceptable level of security compatible with the Calypso brand  which ensures that the security of the existing system is not jeopardized.


Specification of a Calypso HCE application

CNA published the revision 1.3 of the specification of a  Calypso HCE application using a Public Key Infrastructure (PKI) that guaranties the security of the exchanges between the mobile phone and the central system, to load initial data or to load rights (such as transportation rights).

> By delivering HCE Authorization Modules (HAM) with certificates to HCE application providers and service providers,  CNA is acting as the Certification Authority in this PKI.


For security reasons, transactions using the personalization key or the load key are not possible through the NFC interface, and must be done with a secure connection to a server.


Only the Calypso debit key is stored in the HCE application for validation on entrance and control during travel, coupled with a mechanism of renewal of the Calypso Serial Number (CSN) to mitigate the risk of fraud : a part of the CSN contains date and time of validity of the debit key which shall be checked by the terminals.


Calypso HCE Guidelines

Unlike a secure element built to protect data for a long period, a mobile device can only ensure their protection for a very limited period of time depending on the security techniques adopted to delay the attacks on the software and the countermeasures implemented to detect a fraud at the level of the central system, based on a constant back-end monitoring. These techniques are the mandatory supplement to the specification and are in the scope of the Calypso HCE Guidelines, revision 1.0.


They rely on the recommendations of a security study ordered by AFIMB, The French agency for multimodal information and smart-ticketing, realized by an independent expert from the “Mines Telecom Paris Institute”. Get More details


In Short

Combined with the requirements of the specification, the main features which may imply an evolution of the terminals are the following:

·        Support of a rev 3.1 Calypso application

·        Support of TDES keys

·        Check of a specific range of CSN dedicated to HCE application.

·        Check of the debit key validity date (the Guidelines enforce a minimum frequency of the CSN renewal)

·        Check of the mandatory contracts signature


Both  documents define a coherent and secure way to implement HCE in a Calypso environment and are mandatory to use the Calypso brand and keys.


Get the Specification of a Calypso HCE application, revision 1.3 *

Get the Calypso HCE Guidelines, revision 1.0 **


* You must be registered on the CNA website - **Documentation reserved exclusively to CNA members.


Publication : 07/03/2018