PalmHashing: A novel approach for cancelable biometrics

Tee Connie, Andrew Teoh, Michael Goh, David Ngo

Research output: Contribution to journalArticlepeer-review

134 Citations (Scopus)


We propose a novel cancelable biometric approach, known as PalmHashing, to solve the non-revocable biometric issue. The proposed method hashes palmprint templates with a set of pseudo-random keys to obtain a unique code called palmhash. The palmhash code can be stored in portable devices such tokens and smartcards for verification. Multiple sets of palmhash codes can be maintained in multiple applications. Thus the privacy and security of the applications can be greatly enhanced. When compromised, revocation can also be achieved via direct replacement of a new set of palmhash code. In addition, PalmHashing offers several advantages over contemporary biometric approaches such as clear separation of the genuine-imposter populations and zero EER occurrences. In this paper, we outline the implementation details of this method and also highlight its potentials in security-critical applications.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalInformation Processing Letters
Issue number1
Publication statusPublished - 2005 Jan 16

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Signal Processing
  • Information Systems
  • Computer Science Applications


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