5G Connection Resume Security via Parameter Differentiation
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Solution Overview
Problem
In 5G cellular mobile communication systems, terminals face challenges in securely resuming connections after an inactive state, as existing methods do not adequately prevent third-party communication devices from replicating historical connection resume requests, leading to potential communication security risks.
Innovation Solution
A connection resume method and apparatus that allow terminals to determine whether to adopt a first secure manner for sending a current connection resume request based on a connection-resume-manner-selection indication. This secure manner involves differentiating parameters, such as terminal authentication identifiers, terminal numbers, contexts, and security keys, between current and historical connection resume requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal uses the same parameters for historical and current connection resume requests, then the operation is simple and energy-efficient, but communication security is compromised due to replication risks
Solution Approach 1:
The patent applies parameter changes by modifying specific parameters (terminal authentication identifier, terminal number, context, or security key) in the connection resume request to differentiate between historical and current requests. This ensures that even if a request is replicated, the changed parameters will prevent successful authentication, thus resolving the security issue without requiring complete restructuring of the connection resume process.
2Reliability
If the terminal adopts a first secure manner with differentiated parameters, then communication security is improved, but the determining manner complexity increases
Solution Approach 1:
The patent segments the connection resume process into two distinct secure manners: a first secure manner with differentiated parameters and a second secure manner with same parameters. The terminal can select between these segmented approaches based on security requirements, allowing simplified operation when security is less critical while providing enhanced security when needed, thus managing complexity through optional segmentation rather than mandatory complexity.
Data Source
AI summary
A connection resume method is performed by a terminal, and includes: determining, based on a connection-resume-manner-selection indication, whether to adopt a first secure manner to send a current connection resume request; wherein when the first secure manner is adopted to send the current connection resume request, at least part of parameters of the current connection resume request are different from parameters of a historical connection resume request.