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Electronic generation device

A technology of electronic generation and equipment, applied in the direction of electrical components, public keys for secure communication, digital transmission systems, etc., can solve problems such as easy to be discovered

Inactive Publication Date: 2017-08-01
KONINKLIJKE PHILIPS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Second, such large tables may be easily spotted in software

Method used

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Examples

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Embodiment Construction

[0024] While the invention is susceptible to embodiments in many different forms, one or more specific embodiments are shown in the drawings and will be described in detail herein, it should be understood that this disclosure should be viewed as It is considered to illustrate the principles of the invention and is not intended to limit the invention to the specific embodiments shown and described.

[0025] Hereinafter, elements of the embodiments are described in operation for the sake of understanding. However, it will be apparent that corresponding elements are arranged to perform the functions described as they perform.

[0026] In the previous application cited above, an example of one embodiment of a computing device for performing obfuscation arithmetic in a commutative ring is given. The computing device is an electronic device for performing obfuscation arithmetic in a finite commutative ring. An example of such a ring is given: Integer modulo some number ( ). The...

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Abstract

An electronic generation device (100) arranged to generate parameters for digital obfuscated arithmetic is provided. The generation device includes a prime number unit (110) arranged to generate a prime modulus (p) a base element unit (120) arranged to generate a prime modulus and a base element such that each ring-element modulo the prime modulus may be expressed as a difference between two powers of the potential base element.

Description

technical field [0001] The present invention relates to an electronically generating device, an electronically generating method, a computer program and a computer readable medium. Background technique [0002] In white-box cryptography, and more generally in software obfuscation, calculations are usually performed on encoded values ​​rather than plaintext values. Reverse engineering of obfuscated software is more difficult if the calculation is performed on the encoded value rather than on the plaintext value itself. [0003] After encoding, routine operations like addition or multiplication may no longer be performed using the computer's built-in primitives. A simple addition of encoded values ​​does not normally lead to an additive encoding of these values. The same applies to multiplication. In the formula: for most x and y , ; E Indicates the encoding function. [0004] The solution to this problem is to introduce addition ( A ) and multiplication ( M )surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/14H04L9/00H04L9/30
CPCG06F21/14H04L9/002H04L9/008H04L9/3033H04L2209/16
Inventor L.马林A.A.M.L.布鲁伊克斯P.M.H.M.A.戈里斯森
Owner KONINKLIJKE PHILIPS NV
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