The smart card and teleticketing experts

HSM Calypso

Overall Presentation

1. Why?

Validation_copyContactless ticketing enables the owner of a portable object (contactless smartcard, NFC mobile phone, etc.) to enter and travel in the transit networks. The transport titles (transport contracts) are loaded in the portable object by a vending machine, at a booth or through Internet at home. This loading is protected by a secure application module (SAM) located in each terminal issuing transport contracts.


This SAM contains the cryptographic keys necessary for vending operations. Transit networks face today a high increase of portable objects and simultaneous transactions. A SAM cannot answer these requirements since, being able to manage only one operation at a time, a large number of SAM would be necessary in a central system, particularly during peak periods of the month.

2. Solutions

The HSM Calypso replaces up to 5,000 SAM

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Spirtech has designed and markets the HSM Calypso PCI-S3, a PCI card for PC whose software library was designed to secure remote ticketing transactions and complies with Calypso. Implemented in the central system, the HSM Calypso PCI-S3 is a powerful secure module which advantageously replaces 100 to 5,000 SAM, increasing the speed of transaction and reducing the maintenance costs. This is also the right solution to manage the security issues linked with the deployment of NFC phones in transit networks.


Spirtech also markets the HSM Calypso SAM-S20, a Calypso SAM allowing the management of up to 20 simultaneous transactions per SAM. This solution, compatible with the HSM PCI-S3, allows a simpler management for pilot and test phases, and for small ticketing systems.


Central management of multiple transactions sessions

The HSM Calypso centralizes the management of multiple Calypso sessions (from opening a secured channel to the session ratification and the channel closing). The security of the transactions is ensured directly from the central system. Thus, in addition to the performance and services improvements, the HSM Calypso decreases the risks of fraud.


A JAVA JEE environment to simplify its implementation

Spirtech may also supply a JAVA connector for the Calypso HSM library. This interface simplifies the implementation of remote selling services in teleticketing systems using this technology.

3. Advantages

SAMSecure the remote and simultaneous transactions done by teleticketing system.


SAMCompliant with the Calypso standard specifications..


SAMManagement of many groups of independent keys to facilitate interoperability.

Technical Specifications

Physical Characteristics

PCI-S3 Configuration

  • HSM Card evaluated FIPS 140-2 level 3
  • PCI or PCI express format

SAM-S20 Configuration:

  • ISO7816 smartcard
  • ID0 format
  • EAL 5+ component
  • Triple DES
  • DESX (and DES)
  • Variable signature size
  • Multiple keys management and multiple groups of keys
  • Exchanges using the SAM APDU format (ISO 7816-4)
  • Calypso Revision 2 and 3
  • Siagntures for contactless tickets management
  • DESFire compatible (option)
  • Java Interface

More about it

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