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Universidad de Salamanca
Pablo Gallardo's Blog
My professional web log about IT, Cybersecurity & Project Management
 

Fingerprint Recognition

Fingerprint recognition needs to steps:

  1. Fingerprint registration
  2. Fingerprint authentication

During fingerprint registration, the fingerprint image(s) are converted into what is called Fingerprints Minutiae Data (FMD). FMD is saved into the database, not the fingerprint image itself.

During fingerprint authentication, fingerprint image is converted into FMD. Aftewards, the registered FMD and the recently obtained FMD are compared. If they match, it is considered that user has been successfully authenticated.

If FMD is exposed, a fingerprint image can be obtained. This image will not probably match the original fingerprints, but it may be used to impersonate the owner.

pmgallardo

About pmgallardo

I studied Computer Science at University of Salamanca. Since then, I have been working first as developer and then as SAP consutant. This blog is about problems I dealt when using computers, and more important, the solutions I found. Whenever I am on an issue and suddenlly I have a flash that leads me to a solution, I document my discoveries in a post.

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