Approximate Public Key Authentication with Information Hiding

Thomas, Edward V. ; Draelos, Timothy J.

Sandia National Laboratories

关键词: Transformations;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Shape;    Gamma Spectra;    Validation;   

DOI  :  10.2172/767205
RP-ID  :  SAND2000-2467
RP-ID  :  AC04-94AL85000
RP-ID  :  767205

美国|英语

来源: UNT Digital Library

【 摘 要 】

This paper describes a solution for the problem of authenticating the shapes of statistically variant gamma spectra while simultaneously concealing the shapes and magnitudes of the sensitive spectra. The shape of a spectrum is given by the relative magnitudes and positions of the individual spectral elements. Class-specific linear orthonormal transformations of the measured spectra are used to produce output that meet both the authentication and concealment requirements. For purposes of concealment, the n-dimensional gamma spectra are transformed into n-dimensional output spectra that are effectively indistinguishable from Gaussian white noise (independent of the class). In addition, the proposed transformations are such that statistical authentication metrics computed on the transformed spectra are identical to those computed on the original spectra.