Calypso TN 313 – Secure Session Examples – v5 | 081010

Document Summary

This note gives examples of a Calypso secure session processing, with the detailed bytes of all commands sent to the Calypso card and to the SAM.

See Calypso Core Definitions | 210812 document for the description on the Secure Session.

The examples given in the present note are typical transactions with a Calypso card application and a contactless public transport access terminal, for a valid season pass (no debit of the card).

They indicate the actions performed, and the commands sent to the card and the SAM, for a secure session in Regular mode and for a session in Extended mode with encryption.

See Calypso TN325 | 190820 for an example of a secure session in PKI mode.