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Dynamic encryption and decryption methods and equipment for network communication

A network communication and dynamic encryption technology, applied in the field of computer networks, to achieve high protection strength and security level, easy to implement, and achieve the effect of key agility

Inactive Publication Date: 2011-11-09
IBM CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, IPSec solutions do not meet the above requirements very well

Method used

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  • Dynamic encryption and decryption methods and equipment for network communication
  • Dynamic encryption and decryption methods and equipment for network communication
  • Dynamic encryption and decryption methods and equipment for network communication

Examples

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Embodiment Construction

[0024] The method and apparatus according to the invention will now be described in detail through several exemplary embodiments with reference to the accompanying drawings, by way of example only. It should be understood that the illustrated and described embodiments are only exemplary, which are intended to explain the principle and spirit of the present invention, but not to limit the scope of the present invention.

[0025] In the following description, for the sake of clarity, the term "first network entity" is used to indicate the party that initiates key synchronization and sends data, and the term "second network entity" is used to indicate the party that accepts key synchronization and receives data. It should be understood that the first network entity and the second network entity may be any network entities capable of data transmission.

[0026] figure 1 A flowchart showing a dynamic encryption method for network communication according to an embodiment of the pre...

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Abstract

The invention relates to a dynamic encryption method for network communication, a dynamic decryption method for the network communication, dynamic encryption equipment for the network communication and dynamic decryption method for the network communication, and particularly discloses the dynamic encryption method for the network communication. The dynamic encryption method for the network communication comprises the following steps of: distributing a key to a network entity; storing the key in a key list; encrypting data by using the key in the key list, and attaching an index of the key in the key list to the encrypted data; and transmitting the encrypted data to the network entity. The invention also discloses the dynamic decryption method for the network communication. The dynamic decryption method for the network communication comprises the following steps of: receiving the key from the network entity; storing the received key in the key list; receiving the encrypted data from the network entity; and positioning the key in the key list according to the index attached to the data, and decrypting the data by using the positioned key. The invention also discloses corresponding equipment.

Description

technical field [0001] The invention relates to the technical field of computer network. More particularly, it relates to methods and apparatus for dynamic encryption and decryption of network communications. Background technique [0002] With the development of network technology, network communication is increasingly popular and used. In many cases, when a communication channel is established between network entities distributed in different locations or an internal network (for example, an internal local area network), data transmitted on the channel needs to be encrypted. For example, when communicating on a public network (eg, the Internet) based on Transmission Control Protocol / Internet Protocol (TCP / IP), it is usually necessary to encrypt network communication at the IP layer to ensure the security and integrity of communication data. For an encrypted channel, it should at least meet the following requirements: [0003] (1) Performance impact. Data transfer perfor...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L29/06
CPCH04L63/061H04L63/123H04L9/0819H04L63/0435H04L9/14H04L63/068H04L9/12
Inventor 刘新华
Owner IBM CORP
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