Method of identification or authorization, and associated system and secure module

摘要

Method of identification or of authorization using a system comprising at least one sensor for acquiring biometric data and one secure module storing a set of digital data obtained starting from a set of respective biometric data by means of a digitization algorithm. According to this method, a biometric data value is obtained, acquired by the sensor; a digital value is obtained by application of the digitization algorithm to the acquired biometric data value; within the secure module, at least some of the digital data from said set of digital data are ranked according to their proximity to the digital value obtained; and a biometric data value is obtained from said set of biometric data by taking into account a position of the corresponding digital data within the ranking.

主权项

1. A method of identification or of authorization using a system comprising at least one sensor for acquiring biometric data and one secure module storing at least a first and second set of digital data each obtained starting from at least a first and a second respective set of respective biometric data by means of a digitizing algorithm, the method comprising:
/a/ obtain a biometric data value acquired by the sensor; /b/ obtain a digital value by application of the digitization algorithm to the biometric data acquired; /c/ within the secure module, carry out a ranking of at least some digital data from a set of digital data among at least one of the first and second set of digital data according to their proximity to the digital value obtained according to a proximity criterion; and /d/ obtain a biometric data value from a set of biometric data among at least one of the first and second set of biometric data by taking into account a position of the corresponding digital data within the ranking, wherein at least some of the biometric data values from at least one of the first and second set of biometric data are stored in an encoded manner in a memory external to the secure module.