Data protection and security measures

The data stored on the passport can be read contactlessly over a short distance. Extensive data protection and security measures have been taken for the passport. For example, the stored data is stored in such a way that it can no longer be changed once the passport has been personalized (read only). Its authenticity can also be verified at any time using an electronic signature.

To ensure that the data cannot be read by unauthorized persons - remotely or in passing, for example - access to it is secured via a so-called "Basic Access Control" (BAC): Only when the corresponding reader has first optically read the machine-readable zone (MRZ) printed in the passport and calculated a correct key from this information does the chip release the data transfer. As the MRZ can only be read when the passport is open, unnoticed reading of the data when the passport is closed is reliably prevented. With "Supplemental Access Control" (SAC), the readout process is also protected against unauthorized reading.

Since the storage of fingerprints, there has been an additional, even more extensive protection mechanism. The fingerprints are protected against unauthorized reading by "Extended Access Control" (EAC). Liechtenstein determines which country can read the fingerprints

Certificate Policy

Certificate rules for the Country Verifying Certification Authority (CVCA) of the Liechtenstein National Administration.

Certificate Policy

Country Signing Certificate Authority (CSCA) Liechtenstein

On this page you will find the latest information on the CSCA certificates that enable the verification of electronic travel documents of Liechtenstein Origin Bureau