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
CN107004072AInactive Publication Date: 2017-08-01KONINKLIJKE PHILIPS NV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KONINKLIJKE PHILIPS NV
Publication Date
2017-08-01
Estimated Expiration
Not applicable · inactive patent

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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.
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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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