Admissibility Check for Secure Replica Pseudo-Random Noise Code Provisioning
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Solution Overview
Problem
Existing methods for securely providing replica pseudo-random noise codes to receiver units are vulnerable to attackers, as they require costly security mechanisms to protect the entire signal processing unit, and there is a risk of unauthorized access and manipulation.
Innovation Solution
Implementing an admissibility check to restrict the generation and provision of replica pseudo-random noise codes, ensuring they are only generated if the check passes, with values being compared to predetermined threshold values, and focusing security measures on the provision unit rather than the entire receiver unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire signal processing unit is protected with costly security mechanisms, then security against attackers is improved, but device complexity and cost increase
Solution Approach 1:
The patent segments the security protection scope from the entire signal processing unit to only the provisioning unit that generates and provides replica PRN codes. This is achieved by implementing an admissibility check mechanism within the provisioning unit that independently validates receiver requests before code provision, isolating the security-critical function from the rest of the system and reducing overall security mechanism complexity.
Solution Approach 2:
The patent extracts the security-critical function from the general signal processing context and concentrates it in the provisioning unit. By taking out the replica PRN code generation and admissibility check functions into a dedicated security module, the system reduces the attack surface and allows focused security measures only where needed, rather than protecting the entire receiver unit.
2Reliability
If admissibility check is implemented to restrict replica PRN code provision, then unauthorized use is reduced, but processing time and complexity increase
Solution Approach 1:
The patent implements preliminary action by performing the admissibility check before the actual replica PRN code provision. The provisioning unit pre-validates receiver requests by checking admissibility criteria (such as receiver authentication, service subscription status, and operational parameters) before generating or transmitting the code, thus preventing unauthorized access without requiring complex real-time validation during code usage.
Solution Approach 2:
The patent uses copying by providing replica PRN codes that are identical copies of the original codes used by transmitters. These replica codes are generated based on authenticated requests and provided through secure channels. The admissibility check validates whether the receiver is authorized to receive such copies, maintaining security while enabling legitimate code replication for signal decoding purposes.
Data Source
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AI summary
The invention relates to a method for the secure provision of a replica pseudo-random noise code to a receiver unit, characterized in that the replica pseudo-random noise code is provided subject to the result of an admissibility check, wherein values are recorded and compared with predefined thresholds to perform the admissibility check. This makes the use of a replica pseudo-random noise code and the decoding of a secure received signal more secure on the receiver side.