One-time obfuscation for polynomial-size ordered binary decision diagrams (POBDDs)

a binary decision diagram and one-time obfuscation technology, applied in the field of system for obfuscating any polynomial-size ordered binary decision diagram (pobdd) to protect sensitive information, can solve the problems of inability to guarantee the protection of sensitive information of the circuit, lack of explicit construction of how to obfuscate the class of polynomial-size ordered binary decision diagram (pobdd), and inability to achieve the effect o

Active Publication Date: 2019-12-17
HRL LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a way to make sure things look good by adding extra protection against certain types of attacks like randomized encryption. It also explains how this can be done with different forms of data called POBDDs. These POBDDs have specific values that indicate their importance in determining what needs to be protected from unauthorized access.

Problems solved by technology

The technical problem addressed in this patent text relates to protecting secret data during programming and debugging operations. Current methods involve obfusion attacks, but they lack sufficient detail about the structure of these codes. There is also a need for systems that can provide detailed constructions of cryptography obfuses for PBODs with strong information protection.

Method used

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  • One-time obfuscation for polynomial-size ordered binary decision diagrams (POBDDs)
  • One-time obfuscation for polynomial-size ordered binary decision diagrams (POBDDs)
  • One-time obfuscation for polynomial-size ordered binary decision diagrams (POBDDs)

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Embodiment Construction

[0026]The present invention is a system for obfuscating any polynomial-size ordered binary decision diagram (POBDD) to protect sensitive information and, more particularly, to a system for obfuscating any POBDD to protect sensitive information which is hardcoded in POBDD form in the Random Oracle Model (ROM).

[0027]The following description is presented to enable one of ordinary skill in the art to make and use the invention and to incorporate it in the context of particular applications. Various modifications, as well as a variety of uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to a wide range of aspects. Thus, the present invention is not intended to be limited to the aspects presented, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0028]In the following detailed description, numerous specific details are set forth in order to pro

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Abstract

Described is a system for protecting sensitive information that is hardcoded in polynomial-size ordered binary decision diagram (POBDD) form. A software executable represented as a POBDD having sensitive information embedded therein is obfuscated into an obfuscated POBDD. An input query on the obfuscated POBDD is evaluated, and the sensitive information is revealed only if the input query is a correct input. Thus, an adversary is prevented from extracting the sensitive information embedded in the POBDD.

Description

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Claims

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Application Information

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Owner HRL LAB
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