link22 Countersign

Some file exports have to be approved by a third person. That’s what link22 Countersign is for.

Takes two

Control your users' export possibilities further. By denying single individuals to perform exports you implement solid control. Two signatures are required and it comes with full accountability tied to the user's certificates.

Human check

Computers are great when it comes the general cases. The repetitive. For example checking files for a certain string of numbers. Countersign is for the special cases, when a file transfer needs to be checked and approved by a human.

link22 Countersign explained

link22 countersign explained

A controller who is to verify that a file may pass over an interface uses the application to review and verify that the file is approved for export. If the file is accepted, a signature (counter-signature) is added which is created using the controller’s smartcard. Then the file can proceed to the next step in the chain where link22 Guard verifies that the file is countersigned by an approved controller.


  • Developed graphical interface with user-friendliness in focus.
  • Can be easily integrated with link22 Guard to verify that a file has been countersigned, according to configurable rules.
  • Files are protected with a transport protection connected to the user’s smart card.
  • Configured with windows Active Directory and group policy.
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