Packet Reordering Security for Keyless Message Transmission
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Solution Overview
Problem
Existing secure transmission schemes rely on keys, which require complex protocols for maintenance and management, leading to vulnerabilities and reduced message security, especially for messages transmitted before key agreement.
Innovation Solution
A communication method involving security processing and reordering of message packets to diffuse errors across multiple packets, using random seeds for processing and reprocessing to enhance security without keys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If key-based secure transmission schemes are used, then message security can be maintained, but complex key management protocols are required which introduce vulnerabilities
Solution Approach 1:
The patent extracts the key management component from the secure transmission system entirely. Instead of using traditional key-based encryption schemes that require complex key management protocols, the invention uses a keyless security approach where security is achieved through error diffusion mechanisms across multiple message packets, eliminating the need for key generation, distribution, and management protocols
Solution Approach 2:
The patent segments a single message into multiple message packets and applies independent security processing to each packet. By dividing the message and applying separate error diffusion processing to each segment using different random seeds, the system achieves security without requiring key management, as each packet's security is independent and errors cannot propagate across packets
2Reliability
If key-based encryption is applied to all messages, then security is improved, but messages transmitted before key agreement cannot be secured
Solution Approach 1:
The patent applies security processing to message packets before any key agreement occurs. By using keyless error diffusion techniques that process each message packet independently with random seeds, the system provides security for all messages from the outset, including those transmitted before traditional key agreement protocols would be established
3Reliability
If security processing is performed on each message packet, then message security is improved, but error diffusion to multiple packets increases complexity
Solution Approach 1:
The patent implements self-service security where each message packet undergoes independent error diffusion processing using its own random seed without requiring coordination with other packets or external key management. The security mechanism serves itself by automatically diffusing errors within each packet boundary, eliminating the need for complex inter-packet coordination protocols
Data Source
AI summary
A communication method and apparatus. The method includes: a first apparatus performs security processing on q first message packets to obtain q second message packets; after reordering the q second message packets, the first apparatus may perform security processing on the q reordered second message packets to obtain q third message packets; and then, the first apparatus may send q signals, where the q signals are obtained based on the q third message packets. According to the method, at a non-target receiving node, an error can be diffused in a plurality of message packets to the greatest extent, to improve message security.