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Data encryption, decryption and recovery method based on multiple certificates of digital envelope

A digital envelope and digital certificate technology, applied in the field of information security, can solve problems such as hidden safety hazards, and achieve the effects of convenient management, high efficiency, and guaranteed security

Active Publication Date: 2019-07-02
陕西数图行信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the soft certificate transfer method does not require additional hardware media, it is convenient to use and has a good user experience, but it transmits the private key (that is, the encrypted private key) to the user through the network, which poses a security risk

Method used

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  • Data encryption, decryption and recovery method based on multiple certificates of digital envelope
  • Data encryption, decryption and recovery method based on multiple certificates of digital envelope
  • Data encryption, decryption and recovery method based on multiple certificates of digital envelope

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Embodiment Construction

[0071] The present invention is described in further detail below in conjunction with accompanying drawing:

[0072] The purpose of the present invention is to solve the above-mentioned problems in the prior art, to provide a data encryption, decryption and recovery method based on digital envelope multi-certificate, to solve the problem of security when the user transmits the private key to the user through the network when using the soft certificate delivery method. Risks, and the difficulty of data recovery after the user key is damaged or lost, the recovery process is cumbersome, and the time is long.

[0073] The overall structure diagram is as follows figure 1 As shown, the present invention realizes data encryption and decryption and recovery methods based on digital envelope multi-certificates, and is based on data transmission among users, CA servers, certificate management servers, and service servers, wherein the service server receives and processes user login auth...

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Abstract

The invention discloses a data encryption and decryption method based on multiple digital envelope certificates, which comprises the following steps: in the process of applying for a soft certificate,locally generating a key pair of a user mobile terminal, and sending a public key to a CA server for signing to generate a digital certificate; compared with a manner that a key pair is generated bymeans of a CA server and then is transmitted to a user through a network, the private key does not need to be transmitted through a network; the security of the user private key is ensured; a plurality of certificates of one user are adopted; the certificate is managed in a certificate management server; certificate management server, all digital certificates are stored in a user account in a centralized manner; the certificate management server is simple in structure, convenient to manage, high in efficiency and capable of obtaining all digital certificates of a user at a time according to the account number of the user due to the fact that multiple CAs need to be inquired from the CA for multiple times in the prior art, operation is complex and efficiency is not high due to the fact thatmultiple CAs possibly exist at the same time, and system communication and processing burden is reduced.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a data encryption, decryption and recovery method based on digital envelope multi-certificates, which can be used to protect the security of user data. Background technique [0002] Instant messaging is currently one of the most popular communication methods on the Internet. Its real-time, convenient, and efficient features have attracted a large number of users, and it is often the first choice for people to communicate and communicate online. However, ordinary instant messaging software transmits messages in the network in plain text or in a simple encrypted manner, and it is easy for others to intercept the data, steal or tamper with the communication information, and there are great security risks. For this reason, secure communication software emerges as the times require. It usually uses information encryption technology. The sender encrypts the inf...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L29/06
CPCH04L9/3236H04L9/3247H04L9/3263H04L63/0428H04L63/08H04L63/0823
Inventor 李金库王衡马建峰
Owner 陕西数图行信息科技有限公司
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