Patent ID: 8111882

Claim:
A method for testing a fingerprint whose reference data are stored in a portable data carrier that is adapted to exchange data with a terminal, the reference data containing at least positions and orientations of minutiae and pores and an orientation vector, the method comprising: sensing measuring values stating the actual value of the sensed fingerprint, extracting the minutiae and the pores from the measuring values, thereby effecting a division into minutiae and pores, transmitting the reference data of the minutiae and the orientation vector from the portable data carrier to the terminal, comparing, by an integrated circuit in the terminal, the minutiae from the sensed fingerprint with the corresponding reference data, transmitting the position of the pores from the sensed fingerprint relative to the minutiae from the terminal to the portable data carrier, comparing, by an integrated circuit in the portable data carrier being different from the integrated circuit in the terminal, the pores from the sensed fingerprint with the corresponding reference data, and granting access to data or a desired service depending upon the result of the pore comparison.