A method and device for supporting mobile terminals to transmit ipsec VPN packets

A technology for mobile terminals and IP packets, which is applied in transmission systems, electrical components, etc., and can solve problems such as insufficient IPSec VPN solutions and security

Active Publication Date: 2019-01-18
成都三零瑞通移动通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The technical problem to be solved by the present invention is: in order to solve the security problem in the data transmission process in the mobile office, and solve the insufficient problem of existing IPSec VPN scheme, the present invention designs and supports mobile terminal to carry out IPSec VPN message transmission device

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  • A method and device for supporting mobile terminals to transmit ipsec VPN packets
  • A method and device for supporting mobile terminals to transmit ipsec VPN packets
  • A method and device for supporting mobile terminals to transmit ipsec VPN packets

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Embodiment Construction

[0072] All the features disclosed in this specification, or all disclosed methods or steps in the process, except for mutually exclusive features and / or steps, can be combined in any manner.

[0073] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless specifically stated, can be replaced by other equivalent or equivalent alternative features. That is, unless otherwise stated, each feature is just one example of a series of equivalent or similar features.

[0074] Description of this patent:

[0075] 1. The internal network port refers to the plaintext IP message interface. The internal network port of the encryption gateway is connected to the internal application server, and the internal network port of the built-in encryption gateway of the mobile terminal is connected to the mobile terminal. The external network port refers to the interface connected to the external network, and the ciphertext IP message enters the encryptio...

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Abstract

The present invention relates to the field of encrypted data transmission, in particular to an IPSec VPN encryption method and device for supporting a mobile terminal. The prior art of the present invention has a problem and provides an encryption method and device. The method and device support tunnel negotiation when an IP address of the mobile terminal is not visual, support verifying the mobile terminal through a certificate or a device identity, and support a tunnel to automatically adapt a new IP address when the IP address of the terminal dynamically changes after the tunnel is established so as to adapt mobile office environment requirements and meet access requirements of the mobile terminal. The method of the present invention comprises: sending an IKE key negotiation request by the mobile terminal with a built-in gateway; after an encryption gateway receiving the negotiation request from the mobile terminal, performing data key negotiation, performing judgement on the plaintext of a negotiation package, and adding the IP of the mobile terminal into an SA data structure; generating an IP message encryption key and a corresponding sequence number (SPI) after the negotiation is completed; and establishing an encryption tunnel between the mobile terminal and the encryption gateway and then performing data transmission.

Description

Technical field [0001] The invention relates to the field of encrypted data transmission, in particular to a method and device for supporting mobile terminals to transmit IPSec VPN messages. Background technique [0002] IPSeC (IPSeCurty Protocol, IP Security Protocol) is a set of open standards that work together to ensure data confidentiality, data integrity, and data authentication between peer devices. Compared with other remote access solutions, IPSec VPN has a major advantage that it uses centralized security and policy management components, which greatly eases maintenance requirements. Therefore, it has been widely used in helping remote users, company branches, business partners and suppliers to establish a reliable and secure connection scheme for the company's intranet. [0003] 1. Existing IPSec VPN solutions [0004] IPSec VPN is used as the data security transmission protocol between the encryption gateway and the encryption gateway. The network topology, negotiation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/0272H04L63/0485
Inventor 袁健熊毅吴志臣张智
Owner 成都三零瑞通移动通信有限公司
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