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Non-malleable obfuscator for sparse functions

一种点函数、处理器的技术，应用在混淆计算机程序的系统领域，能够解决部署、程序大小大等问题

Active Publication Date: 2018-02-06
HRL LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the underlying building blocks, obfuscation schemes are impractical because even obfuscated simple programs are too large in size to be deployed in practice

Method used

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  • Non-malleable obfuscator for sparse functions
  • Non-malleable obfuscator for sparse functions
  • Non-malleable obfuscator for sparse functions

Examples

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Embodiment Construction

[0023] The present invention relates to a system for obfuscating a computer program, and more particularly to a system for obfuscating a computer program containing a set of point functions of any polynomial size to protect sensitive information in the computer program. The following description is presented to enable one of ordinary skill in the art to make and use the invention and incorporate it in the context of a particular application. Various modifications in different applications and various uses will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to a wide variety 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.

[0024] In the following detailed description, numerous specific details are set forth in order to provide a more complete understanding of the pres...

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PUM

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Abstract

Described is a system for obfuscating a computer program. Sensitive data of an unprotected computer program is received as input. A random oracle is used to algebraically hide a set of polynomial-sizepoint functions representing the sensitive data. The system outputs a set of obfuscated instructions internally hiding the sensitive data. The set of obfuscated instructions are used to transform theunprotected computer program into a protected, obfuscated computer program that is accepting of the set of polynomial-size point functions. The obfuscated computer program is written to a non-volatile computer-readable medium.

Description

[0001] Cross References to Related Applications [0002] This is a non-provisional application of U.S. Provisional Application No. 62 / 190,435, entitled "Non-Malleable Obfuscator for a Polynomial Set of Sparse Functions," filed in the United States on July 9, 2015, which is hereby incorporated by reference in its entirety technical field [0003] The present invention relates to a system for obfuscating a computer program, and more particularly to a system for obfuscating a computer program containing groups of point functions of any polynomial-size to protect sensitive information in the computer program. Background technique [0004] In software development, obfuscation refers to the act of creating obfuscated code (that is, source or machine code that is difficult to understand). Programmers may deliberately obfuscate code to obscure its purpose or its logic, to prevent tampering, to discourage reverse engineering, or as a puzzle or entertainment challenge for someone read...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/14
CPCG06F21/14H04L2209/16H04L9/002G06F21/60
Inventor K·埃尔·德弗拉维赵忠原D·C·爱朋J·卡茨
Owner HRL LAB
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