Mobile Device Challenge-Response Security for Dynamic IP Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless packet data service networks, ensuring reliable device PIN to IP mapping is challenging due to potential disjunctions in packet-switched networks, which can lead to security issues as mobile devices change IP addresses or encounter communication errors, making it difficult to authenticate and secure data sessions.
Innovation Solution
A mobile communications device is equipped with logic to generate authentication keys for securing personalized indicia, such as PINs, and initiate a challenge-response protocol with network nodes upon detecting errors or changes, ensuring legitimate PIN to IP mappings by using authentication keys to validate device identity and update IP addresses as necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dynamic IP address assignment is used in packet-switched networks, then network resource utilization is improved, but security reliability deteriorates due to PIN to IP mapping disjunctions
Solution Approach 1:
The system implements a challenge-response protocol where the network node sends challenges to the mobile device and verifies responses using the stored authentication key. This feedback mechanism ensures that even when IP addresses change dynamically, the PIN to IP mapping remains secure because each communication session is authenticated through this verification process.
Solution Approach 2:
The system performs preliminary authentication by storing an authentication key derived from the device PIN before the actual data communication begins. This preliminary action establishes a trusted relationship between the device and network, allowing the system to maintain security reliability even as IP addresses are dynamically reassigned during operation.
2Reliability
If challenge-response protocol is implemented for security validation, then security reliability is improved, but device complexity increases
Solution Approach 1:
The mobile device autonomously generates authentication values using the stored authentication key and device PIN without requiring complex external verification systems. The device independently completes the challenge-response protocol by calculating responses locally, which reduces the complexity burden on the network infrastructure while maintaining high security reliability.
3Adaptability or versatility
If authentication keys are stored in mobile devices, then security validation capability is improved, but risk of unauthorized access increases if keys are compromised
Solution Approach 1:
The system extracts the critical security function from the authentication key itself and separates it from the device PIN. The authentication key is derived from the PIN but stored separately in the device, while the network node holds the corresponding verification data. This extraction creates a distributed security model where compromise of one element does not automatically compromise the entire system.
Solution Approach 2:
The system implements asymmetric security validation where the mobile device holds an authentication key and the network node holds corresponding verification data. Neither party has complete information alone - the device cannot generate valid responses without the key, and the network cannot verify responses without its stored data. This asymmetric distribution of security credentials reduces the harmful impact of potential compromises.
Data Source
AI summary
In one embodiment, a scheme is provided for securing a personalized indicium assigned to a mobile communications device. Upon detecting at a mobile communications device that one of a list of criteria have been met, a challenge-and-response procedure is initiated by the mobile communications device. During the challenge-and-response procedure, the mobile communications device and a network node will authenticate the personalized indicium using a shared authentication key.