Collaborative signature method and device supporting trusted display

A technique for trusted, signed messages, applied in the field of cryptography

Active Publication Date: 2019-11-26
北京向芯力科技有限公司
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the access control is done at the caller, and the attacker can bypass this res

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Collaborative signature method and device supporting trusted display
  • Collaborative signature method and device supporting trusted display
  • Collaborative signature method and device supporting trusted display

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0053] Such as figure 1 As shown, a collaborative signature method supporting trusted display includes the following steps:

[0054] Step 11: The sub-private key D is stored in the caller 1 , securely store sub-private key D in the cooperative party 2 ;

[0055] Step 12: The caller uses the sub-private key D 1 Generate the first part of the signature Q 1 , and the messages M and Q to be signed 1 sent to the collaborating party;

[0056] Step 13: The cooperating party credibly presents the message M to be signed, and after the user verifies that the message is correct, generates the message digest e of the message M t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a collaborative signature method and device supporting trusted display, and the method comprises the following steps: 1), signature parameters are initialized and public parameters needed in the whole signature process are generated; 2) a calling party and a collaboration party generate a secret key; according to the scheme, it is guaranteed that a complete digital signature can be generated only after a user confirms that the to-be-signed message is correct, and meanwhile it is guaranteed that when data of the collaboration party is lost, an attacker cannot generate the complete digital signature through the collaboration party due to the fact that the data of the collaboration party lacks a sub-private key stored in the calling party.

Description

technical field [0001] The invention relates to cryptography technology, in particular to a collaborative signature method and device supporting credible display. Background technique [0002] Digital signature devices are widely used in e-commerce, e-government and other scenarios to provide functions such as digital signature and identity authentication. [0003] At present, the private key information is stored in the digital signature device. In order to prevent the digital signature device from digitally signing the wrong message without the user's knowledge, the existing technology proposes: the caller initiates the message according to the information to be signed sent by the digital signature requester. When requesting a digital signature, the information to be signed is displayed to the user. After the user confirms the correctness of the information to be signed and verifies the user's PIN code, the digital signature is completed and returned to the digital signatu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L9/08H04L9/30H04L9/32
CPCH04L9/0825H04L9/0861H04L9/0866H04L9/0869H04L9/3066H04L9/3247
Inventor 韩留明王庆芝
Owner 北京向芯力科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap