The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2018
Filed:
Jul. 22, 2015
International Business Machines Corporation, Armonk, NY (US);
Reinhard W. Heckel, Zurich, CH;
Michail Vlachos, Rueschlikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments of the present invention disclose a method, computer program product, and system for data obfuscation and right-protection. An initial matrix X, represents the initial data set of the application and final matrix Xis obtained from X. The final matrix Xis obtained by performing one of the following operations X=(P(X)+E)F; X=P(X)F+E; and X=P(XF)+E. Where P(.) is a projection operator that projects an input initial matrix in a space having a lower dimension than the input matrix, E represents a noise matrix, and F represents a matrix as a perturbation series. The matrix F is represented as a perturbation series, whose leading term is the identity matrix I, one or more higher-order terms of the perturbation series embedding a secret, multiplicative noise, so as for a matrix multiplied by the matrix F is right-protected.