Method and equipment for processing message

A message and device technology, applied in the field of communication, can solve problems such as unsupported message priority, system disorder, etc., to solve the problem of replay attack and ensure normal operation
CN102752189AInactive Publication Date: 2012-10-24BEIJING HUAWEI DIGITAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING HUAWEI DIGITAL TECH
Publication Date
2012-10-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention discloses a method and equipment for processing a message, and is used for solving a replay attack problem to guarantee the normal operation of a system under the condition that the message priority is supported. The method disclosed by the embodiment of the invention comprises the following steps of: receiving a message, wherein the received message caries a serial number used for preventing the replay attack and information used for indicating the message priority; according to the serial number used for preventing the replay attack and the information used for indicating the message priority, which are carried by the received message, judging whether the replay attack happens or not; if so, abandoning the received message; and if not, processing the received message.
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Description

technical field

[0001] The present invention relates to the technical field of communication, in particular to a method and equipment for processing messages. Background technique

[0002] Replay attack is a very common network attack method. The attacker intercepts the packets transmitted on the network in advance, and chooses to resend the intercepted packets on the Internet at an appropriate time in the future, thereby disturbing the state of the victim's device and achieving the attack. the goal of.

[0003] At present, many routing protocols and security protocols use serial numbers to prevent replay attacks, that is, each message carries a serial number, and the serial number increases monotonically. When the system receives a message, it processes the message. If the sequence number of the received packet is smaller than the sequence number of the previously processed packet, it is considered a replay attack and the system discards the received packet.

[0004] The ...

Claims

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