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Secure Information Processing with Privacy Assurance - standard based design and development for biometric applications

This paper presents the design and development of a technique referred to as SIPPA - Secure Information Processing with Privacy Assurance - for biometric data reconstruction. SIPPA enables a client/server model with the following two properties: (1) the client party can compare the similarity between his/her sample data with the source data on the server side — without each party revealing his/her data to another, nor to a third party. If the sample data is “sufficiently similar” to the source data, the client can reconstruct the source data by using only the sample data and some helper data with negligible overhead provided by the server. The main contributions of this paper are: (1) algorithmic steps of SIPPA and its relationship to privacy homomorphism, (2) a parallel SIPPA architecture, and (3) the realization of parallel SIPPA as a service component for BioAPI 2.0 framework using Java RMI technology. To demonstrate its potential application, we apply SIPPA to the reconstruction of biometric data, and more specifically, biometric face images represented in terms of linearized vectors.