BNP Paribas

Cryptographic devices

Cryptographic devices are meant for the users of digital signatures. Cryptographic devices secure private keys (stored on them) which are used for digital signatures. Such keys are generated in the microprocessor (chip), on the very inside of the device, and this is where all encryption operations take place, the result of which is the digital signature generation. Cryptographic devices are built in a way preventing the interception of the keys stored on them. Access to the device is secured with a PIN code defined by the user.

Such mechanisms enable cryptographic devices to significantly improve the Pl@net system security.


The Bank offers you two types of cryptographic devices:

  1. USB cryptographic device

USB cryptographic device is connectable to the computer through the USB port. It looks like a pen-drive and is similar in size; however, its function is to store an encryption key and generate digital signatures. Functionally, USB tokens are equivalent to smart cards and smart card readers (2 in 1).

  1. Smart card

A smart card is a plastic card of the size of a credit card with the microprocessor (chip) embedded inside. A smart card works in the same way as an USB token, the only difference is that for a smart card you will need a smart card reader (an external device connectable to the computer through the USB port, or an internal card reader built in the computer). Card readers connected through USB ports are on sale in our Bank.

What type of a cryptographic device will you need?
Users who share their computer with no other users and their computer has no smart card reader should choose USB token. If a smart card is ordered, a smart card reader should be purchased, while a much smaller USB token can be considered instead.
If the computer is already equipped with a smart card reader, a smart card will be the best option.
Users who share their computer with other BiznesPl@net users should purchase one smart card reader only (unless the computer is equipped with a built-in card reader) and get all users one card each.

Note: Cryptographic devices are supported only in Microsoft Windows operating system (Vista / XP / 2000). Supported browsers are: Microsoft Internet Explorer (ver. 5.5 with SP2 or newer), Mozilla Firefox (ver. 1.5 or newer) and Netscape Browser (ver. 7.1 or newer). In operating systems other than Microsoft Windows, the cryptographic devices are not supported.



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