TachoSync Company Card Authenticator

Overview

A company card is a type of smart card issued to transport companies for use with digital tachographs. It serves several functions, including access control to tachograph data (as required by, e.g., EU law).

Company Card Authenticator (CCA) is a piece of software developed by Teltonika that allows to remotely authenticate with a tachograph to download DDD files.

PC Requirements for CCA

For CCA to work properly with TachoSync, the PC on which CCA is installed must always be turned on and online.

PC Requirements for CCA:

• OS: Windows 10; Windows 11.
• CPU: Intel or AMD processor with 64-bit support.
• Disk Storage: 500 MB of free disk space.
• Internet connection: Required for downloading and operation.

TachoSync authentication service IP address and port:

• IP: 3.126.35.133
• Port: 7066

How to Install CCA

1. Go to TachoSync.
2. Go to "Settings" in the top menu and select "Company Card Authenticator".
3. A window opens. Select the latest version and click “Download".
4. Open the downloaded file and install CCA.
5. Run CCA.

Your card reader is now able to remotely authorize tachograph data downloads.

Latest official CCA version can be also downloaded here

Version	Release Date	Link	Release Notes
1.2.1	2025-09-15		Fixed a rare issue where some smart card readers (PC/SC) did not retrieve ATR command correctly. Fixed an issue with Lisle devices where a card slot could appear occupied, but the card information was missing. The system now re-checks the slot to ensure the card is properly recognized.
1.2.0	2025-09-11		Improved authentication speed when using Lisle Hyper Card racks – authentication is now 3–4 times faster compared to the previous version. Fixed a problem in larger Lisle Hyper Card rack setups (50+ company cards) where some cards were not identified correctly when inserted or after a service restart. The initial card reading mechanism has been improved to ensure all cards are detected reliably. Fixed an issue where smart card readers (PC/SC) were released too early in some cases, which would cause unexpected errors during communication with company cards.
1.1.0	2025-07-04		Disabled internal logging to internal.log, keeping only the main application logs. This prevents uncontrolled file growth and simplifies troubleshooting. Updated the Card ID logic to use the full ICC (Integrated Circuit Card) value instead of CardExtendedSerialNumber, ensuring better uniqueness and alignment with tachograph standards. Improved connection reliability between the CCA application and the TachoSync server. Applied minor stability improvements throughout the application.
1.0.0	2025-04-25		Reduced memory usage to improve performance and stability. Added TLS 1.3 encryption for communication with the TachoSync server. Added a new 'Card number' column to the CCA monitor view, displaying the official company card number used.

CCA Interface

Company Card Authenticator interface

The CCA provides the name of the connected smartcard reader(s) and the following information in a table:

• Card slot - identifier of card slot in the reader.
• Card ID - a unique identifier assigned by the smart card chip - copy this ID to TachoSync when adding a new company card - see “Companies” in TachoSync Interface for more information.
• Card Number - card serial number that is printed on the card (and encoded electronically) that uniquely identifies the card.
• Status - card status.
• Company - name of the company.
• Valid from - validity start date.
• Valid until - validity end date.