Method and data processing device for verifying electronic signatures

A data processing device and electronic signature technology, which is applied in user identity/authority verification, electrical components, digital transmission systems, etc., can solve the problem of high computational cost of signature verification

Inactive Publication Date: 2016-12-07
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, signature verification can be computationally expensive

Method used

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  • Method and data processing device for verifying electronic signatures
  • Method and data processing device for verifying electronic signatures
  • Method and data processing device for verifying electronic signatures

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Embodiment Construction

[0010] The following detailed description refers to the accompanying drawings, which show by way of illustration specific details and aspects of the disclosure in which the invention may be practiced. These aspects of the disclosure are described in sufficient detail to enable those skilled in the art to practice the invention. Other aspects of this disclosure may be utilized and structural, logical, and electrical changes may be made without departing from the scope of the present invention. The various aspects of this disclosure are not necessarily mutually exclusive, as some aspects of the invention can be combined with one or more other aspects of the invention to form new aspects.

[0011] figure 1 A communication device 100 according to one embodiment is shown.

[0012] The communication arrangement 100 comprises a first communication device 101 and a second communication device 102, which are coupled via a communication network 103 (eg via the Internet).

[0013] The...

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Abstract

A method for verifying an electronic signature is described comprising: determining a residual class given by the signature; determining an integer having the residual class; determining a field element of a finite field from a predetermined mapping of a finite field to a set of integers, whereby having the field element correspond to an integer; determining whether the field element satisfies a predetermined specification, and determining whether the signature is valid based on whether the field element satisfies the predetermined specification.

Description

technical field [0001] The invention relates to a method and a data processing device for verifying electronic signatures. Background technique [0002] To ensure the integrity of transmitted data in electronic data communications, the data may be signed, typically using a private key, before being sent. The receiver can then check whether the signature is valid and thus whether the data has been altered by a third party or by an error in the communication by using the transmitter's public key. To ensure high security, private and public keys with a high number of bits are used. Thus, signature verification can be computationally expensive. Therefore, it is desirable to reduce the computational cost and complexity of signature verification. Contents of the invention [0003] According to one embodiment of the present invention, there is provided a method for verifying an electronic signature, which includes: determining the remaining class given by the signature; determ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32
CPCH04L9/3252H04L9/3247
Inventor B·迈耶E·赫斯
Owner INFINEON TECH AG
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