Method of reconstruction of a measurement of the reference database of a confidential from a measurement of this database noisy

摘要

The method involves defining a size of reference data (Wi), and selecting a key (Sik) having a size adapted to the size of the reference data. Reference measurement of confidential data is performed. An extended function is applied to increase the size of the measured data by using the key and the extended function in order to generate a wide data. Secure sketch function is applied in phase of enlistment so as to find a reconstruction data (Si). Extended reference data (Wie) is reconstructed. An independent claim is also included for an electronic authentication system.