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A method, device and system for multiplexing the same digital certificate to multiple terminals

A digital certificate and terminal technology, applied in the field of information security, can solve problems such as increasing the cost of digital certificates, increasing the complexity of digital certificate maintenance and management, and achieving the effect of avoiding cost investment and improving customer experience

Active Publication Date: 2021-06-18
吕文华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cost of digital certificates: Since digital certificates are a binding technology for public keys, that is, private keys are indirectly bound, and traditional public key cryptosystems are based on terminal protection of private keys, that is, one terminal corresponds to one private key. Therefore, One terminal also corresponds to one digital certificate, and the use mode of multiple certificates for one person increases the cost of digital certificates, and also increases the complexity of digital certificate maintenance and management

Method used

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  • A method, device and system for multiplexing the same digital certificate to multiple terminals
  • A method, device and system for multiplexing the same digital certificate to multiple terminals
  • A method, device and system for multiplexing the same digital certificate to multiple terminals

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Embodiment 1

[0081] Embodiments of the present invention provide a method of multiplexing the same digital certificate to a plurality of terminals. The source terminal and the server side constitute a source keychain that is bound to the public key when the digital certificate is issued, and the target terminal is multiplexed to the certificate in the source terminal, the method comprising:

[0082] At least one target terminal, the source terminal and the server side dynamically constitute the source key chain after constituting the active key to the local key chain of the public key when the digital certificate is issued, each of the target keys Source keychain is equivalent.

[0083] Further, the at least one target terminal, the source terminal and the server side dynamically constitute a source of the source key chain to at least one target key chain that is bound to the public key when the digital certificate is issued, each of which The target key chain is equivalent to the source key, ...

Embodiment 2

[0169] A method of multiplexing the same digital certificate in a plurality of terminals provided by the second embodiment of the present invention, which is applied to the server side, wherein the source terminal and the server end constitute the source of the public key bound to the digital certificate issued. The key chain, the method includes:

[0170] Generate target random number D s2 ∈ [1, n-1], where n is the order of elliptic curve;

[0171] Reverse metallographic Number of target random s2 -1 Source random number D s1 The first model multiplication result U 1 (D) s2 - 1 di s1 ) MOD N sends to the source terminal; enabling the source terminal to perform the mode operation result U 1 , Source sector key D p1 And stored source storage key D c1 Second model operation result u 2 (D) p1 di c1 U 1 ) MOD N is sent to the target terminal so that the target terminal will result in the second mode multiplication result U 2 , Reverse metallographic di Die D p2 -1 Mode multiplaye...

Embodiment 3

[0178] A method of multiplexing the same digital certificate in a plurality of terminals provided in the first embodiment of the present invention, which is applied to the source terminal, wherein the source terminal and the server end constitute the source of the public key bound to the digital certificate issued. The key chain, the method includes:

[0179] The first modeling calculation result of the receiving server 1 (D) s2 -1 di s1 ) MOD N, where D s2 -1 For the target random number of target random, D s1 Source random for server storage;

[0180] Put the modeling calculation result U 1 , Source sector key D p1 And stored source storage key D c1 Second model operation result u 2 (D) p1 di c1 U 1 ) MOD N is sent to the target terminal so that the target terminal will result in the second mode multiplication result U 2 , Reverse metallographic di Die D p2 -1 Mode multiplayer results as target storage key D c2 (D) p2 -1 U 2 ) MOD N; signature private key in the target key c...

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Abstract

The present invention provides a method, device and system for multiplexing the same digital certificate to multiple terminals, wherein the source terminal and the server constitute a source key chain corresponding to the public key bound when the digital certificate is issued. Including: at least one target terminal, the source terminal and the server dynamically construct at least one target key chain corresponding to the public key bound when the digital certificate is issued after performing an identity transformation on the source key chain, each of the target key The chain is equivalent to the source keychain. The invention solves the technical problem of how to safely multiplex the same digital certificate to multiple terminals, provides a security experience of one certificate per person for multiple smart terminals held by users, and realizes the unification of safety, convenience and cost.

Description

Technical field [0001] The present invention relates to the field of information security, and in particular, to a method, apparatus, and system of multiple terminals, a plurality of terminals. Background technique [0002] Digital certificate technology based on public key cryptography has been widely used in various security certification applications, and digital certificates have become "ID cards" on the Internet. Digital certificates are binded to the user identity (such as documents) with the public key, and the data file issued by the Authoritative Certification Center can be used to determine the user's identity, pass the trust relationship. The issuance mechanism of the digital certificate mainly includes the key steps to implement in three order: First, when the user is approved by the user to the bank counter, the user's identity is ensured by the face-to-face audit mechanism; the second is to produce a public private key. A private key is generated by the terminal dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/08H04L9/30
Inventor 宛海加吕文华董宁周大勇刘鹏
Owner 吕文华
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