If multiple users were enrolled same fingerprints or face, then there can be some security problem.

To prevent user enroll with duplicated fingerprint or face, duplication check in BioStar 2 is supported from BioStar 2 v2.7.6.

You can enable 'Duplicate Check' feature from BioStar 2 server, however, device firmware is not yet supported. (July, 2019)



1. Basic information of 'Duplicate Check' feature

  • To support this feature, you need to use both over BioStar 2 v2.7.6 and supporting firmware.
  • It is supported when you use 1:N matching. (It is not supported when you use 1:1 matching)
  • If one user registered same fingerprints / faces, there will be no duplication check for those data.
  • Duplication checking time and speed will be different by the location of fingerprint / face data stored.
  • Even though there are many duplicated fingerprint / face users from current database, BioStar 2 and device will show 1 user information.
  • You can enable this feature in 'Slave' device, however, the function will not work.
  • If someone try to enroll user with duplicated biometric information, the registration would be fail. You can check the log through Monitoring and Settings - Audit Trail.


Caution

  • Duplication checking feature is supported when you enroll a user fingerprint or face  from device menu, not from BioStar 2.


2. Configure from BioStar 2 server / client

  • You can configure for fingerprint / face duplicate check, enable or disable.
  • It does not have a limitation whether your device has LCD or not. (Only needs your firmware support this feature.)
  • BioStar 2 - Device - (Selected Device) - Fingerprint / Face - Duplicate Check - Enable / Disable
  • Default setting in BioStar 2 server is 'disabled'.


<Fingerprint Duplicate Check from BioStation 2>


<Face Duplicate Check from FaceStation 2>



3. Configure from Suprema device

  • You can configure for fingerprint / face duplicate check, enable or disable.
  • It is only supported in LCD on devices.

            Supported on : BioStation 2, BioStation L2, BioStation A2, BioLite N2, FaceStation 2, FaceLite

  • Device menu (ESC key) - Authentication - Fingerprint / Face - Operation - Duplicate Check
  • Default setting in device is 'enabled'. (You should manually set 'enabled' after you upgraded the firmware after you upgrading from 'not supported' version to 'supported' version.)