System and Method for Security Purposes

A system for security purposes comprising: - an inner structure that is accessible by a plurality of terminals, - wherein the system allows a measurement on the inner structure of the system by using a challenge signal comprising a plurality of input signals applied in parallel to the terminals and by receiving a response signal dependent on a setting of the challenge signal and dependent on the inner structure of the system, wherein - the system comprises at least two features of the group containing: > the ability to process non-binary input signals, > a bandwidth at the terminals and an information content ensuring a incomplete readout of the information content within a predefined access time period, > a spatial and/or logical disorder of the inner structure, > a non-linear relation between the input signals and output signals appearing at the terminals, and that - from the knowledge of a subset of the predefined settings and of associated response signals, the response signal associated with a particular setting outside the subset is not predictable with a probability higher than the probability for guessing the response signal.

Patents:
WO 2,010,105,993

Inventor(s): RUEHRMAIR ULRICH [DE]; STUTZMANN MARTIN [DE]; CSABA GYOERGY [DE]; LUGLI PAOLO [DE]; FINLEY JONATHAN [DE]; JIRAUSCHEK CHRISTIAN

Type of Offer: Sale



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