Secure key storage with PUFs

Security with Noisy Data: On Private Biometrics, Secure Key Storage and Anti-Counterfeiting

Volumn , Issue , 2007, Pages 269-292

  Skoric, Boris ^a   Schrijen, Geert Jan ^a   Tuyls, Pim ^a   Ignatenko, Tanya ^b   Willems, Frans ^b  

^a PHILIPS RESEARCH LABORATORIES   (Netherlands)

^b EINDHOVEN UNIVERSITY OF TECHNOLOGY   (Netherlands)

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EID: 84885411965     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.1007/978-1-84628-984-2_16     Document Type: Chapter

References (6)

1. This statement is made more precise in Section 16.6.3.
2. Instead of storing s (P (K)), it is more secure to store σ (P (K), x̃), where x̃ is additional unpredictable key material that is obtained from the PUF (if necessary, derived from the response of a second challenge). We have chosen not to include this in the notation for the sake of transparency.
3. This is a one-time event that is performed during a pre-processing step.
4. Alternatively, K is used as a symmetric key. The IC outputs K and the enroller stores σ (P (K)) in the EEPROM. The circuit that outputs K is destroyed after this procedure.
5. Note that the direction of the sequences is related to the 45° direction in which the Gabor transform was applied [287].
6. i (X)] depends on the choice of l and B.