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Method and system for encrypting and decrypting data

A technology for encryption, decryption, and data, which is applied in the computer field, can solve problems such as the inability to quickly change the key, and achieve the effect of fast change and improved efficiency

Inactive Publication Date: 2018-04-10
BEIJING TOPSEC NETWORK SECURITY TECH +2
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Problems solved by technology

[0004] The present invention provides a method and system for encrypting and decrypting data, so as to solve the problem that the prior art cannot realize rapid key change

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  • Method and system for encrypting and decrypting data
  • Method and system for encrypting and decrypting data

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Embodiment Construction

[0030] In order to solve the problem that the existing technology cannot realize rapid key change, the present invention provides a method and system for encrypting and decrypting data. The present invention obtains multiple quantum keys synchronously through the quantum VPN device at the encryption end and the quantum VPN device at the decryption end. Store the obtained quantum keys in the buffer area, and then use each quantum key to encrypt and decrypt the data to be encrypted and decrypted in turn. That is to say, the present invention acquires multiple quantum keys synchronously and establishes a quantum key buffer to realize It ensures the rapid transformation of the quantum key in the process of ipsec encryption and decryption, and greatly improves the efficiency of encryption and decryption during quantum VPN device communication. The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be ...

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Abstract

The invention discloses a method and system for encrypting and decrypting data. The method disclosed by the invention includes the following steps: synchronously acquiring multiple quantum keys through encryption-end quantum VPN equipment and decryption-end quantum VPN equipment, storing the acquired quantum keys in a buffer area, and subsequently performing encryption and decryption on data to beencrypted and decrypted by using each quantum key sequentially. In other words, according to the scheme of the invention, through the steps of synchronously acquiring the multiple quantum keys and establishing a quantum key buffer area, the rapid transformation of the quantum keys in an ipsec encryption and decryption process can be realized, and the efficiency of encryption and decryption of thequantum VPN equipment during communication can be greatly improved.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and system for encrypting and decrypting data. Background technique [0002] At present, the quantum key is directly requested by the quantum server to read. First, the vpn sends a key agreement request packet to the quantum key server, and then the quantum key server generates a key and sends it to the vpn device. The VPN device encrypts and decrypts data through this key. [0003] However, when the amount of data is large, the gateway device needs to increase the update frequency of the quantum key, and the existing method of obtaining the quantum key cannot achieve rapid key change. Contents of the invention [0004] The invention provides a method and a system for encrypting and decrypting data, so as to solve the problem that the prior art cannot realize rapid key change. [0005] On the one hand, the present invention provides a method for encrypting and dec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L29/06
CPCH04L9/0852H04L9/0894H04L63/0485
Inventor 党帆李朋伟赵帅鹏施德军
Owner BEIJING TOPSEC NETWORK SECURITY TECH
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