A new version of the Calypso REV3.1 Applet was in preparation in order to improve the compatibility with various platform: Java card 3.1.0, NFC Notification, NFC Forum Tag Type 4.

It integrates a new activation process allowing to activate the Calypso package independently to the personalization of a ticketing instance.


In details, the new features are :

- Compatibility with the latest version 3.1.0 of Java Card (support from JC2.2.2 to JC3.1.0).

- Improvement of the compatibility of the NFC feature with UICC & eSE.

- Possibility to personalize binary file data through Store Data with the ‘ssnn’ DGI.

- Select File command compliant with NFC Forum Tag type 4.

- Possibility to manage the activation process on the technical Calypso Setup instance, independently to the personalization of the ticketing instances.

- Support of the PIN with Stored Value instances


This applet will be release in March 2020. CNA also worked on an implementation of A Calypso REV3.3 applet prototype (supporting PKI).

The CNA Applet is reserved to CNA members only and can be requested by email to the CNA team at contact@calypsonet-asso.org.


Published in Ferburay 2020

Following the publication of our White Paper Calypso and Account Based Ticketing, CNA launched in June 2017 a Technical Working Group dedicated to ABT in order to define a set of guidelines of specifications for an ABT Calypso system.

Last week CNA published the release 1 of the Account Based Ticketing-Calypso guidelines. Those guidelines provide a framework to implement an ABT system by taking advantage of the off-line capabilities of Calypso in order to mitigate the shortcomings of ABT due to the limitations of telecommunications networks. For instance, this document presents a proposition of the way to on storing some data in the media in order to perform limited off-line and local transactions to overcome connection issues while providing a high quality of service to travellers and protecting revenues for transport companies. The group was also careful to find the right balance to limit as far as possible these ABT data, in order not to fall back into a card centric system architecture.

CNA wishes to thank the active contributors to this document: BMC, IDFM, RATP Smart Systems, Otlis, SNCF, Spirtech, Thales, and address a special thank you to Cubic for its leading role on the subject and for its major contributions. The objective for CNA is now to promote these guidelines in order to have a first implementation to test them on the field and potentially make them evolve into real actual Calypso specifications.

These guidelines can be downloaded on the Technical Calypso Website and are Reserved for CNA members only.

Get also access to the Public White Paper "Calypso and Account Based Ticketing"


Published in December 2019

Following the successful creation of a new mid-range product, Calypso Light, we were asked by operators and industry to go further in reducing costs for a Calypso product.

That's why we launched a working group in July 2019 to imagine a low- cost multi-source Calypso product, still based on a microprocessor component and compatible on the same software layer as other Calypso products. This group was very successful as at the end of 2019 the Calypso Basic specifications were published.

The main features are: same functional safety but without EL4+ certification with only one contract. The specifications are avalable to all Calypso Networks Association members on the Technical Calypso Website


Published in December 2019