Multiple PSK Authentication Credential Merging

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Solution Overview

Problem

Conventional authentication systems incur significant latency due to multiple authentication processes required for wireless terminals accessing services, which hampers seamless handovers and increases network login time.

Innovation Solution

A method and system that combine user identifiers and Pre-Shared Keys (PSKs) into a single credential for authentication, allowing multiple authentications to be processed in a single procedure, thereby reducing latency to that of a single authentication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple independent authentications are performed sequentially, then authentication completeness is improved, but access latency increases

Engineering Contradiction:

Improveauthentication completenessVSAvoidaccess latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent combines multiple independent authentications (device authentication and subscription authentication) into a single authentication procedure by transmitting multiple credentials simultaneously to the authentication server, which processes all authentications in one round-trip, thereby reducing access latency while maintaining authentication completeness

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The authentication server is enhanced to handle multiple authentication types within a single procedure, making the authentication system multi-functional by processing both device authentication and subscription authentication simultaneously through one unified mechanism

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If multiple authentication procedures are executed, then authentication thoroughness is improved, but handover smoothness deteriorates

Engineering Contradiction:

Improveauthentication thoroughnessVSAvoidhandover smoothness

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

By merging multiple authentication procedures into a single procedure, the patent eliminates the latency interruptions that occur during sequential authentications, thereby maintaining authentication thoroughness while significantly improving handover smoothness and reducing call drop probability during mobility

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If sequential authentication requests are sent, then authentication coverage is improved, but network login time increases

Engineering Contradiction:

Improveauthentication coverageVSAvoidnetwork login time

Core Design Contradiction:

Adaptability or versatilityVSDuration of action of moving object

Solution Approach 1:

The terminal combines and prepares multiple credentials (device identifier, subscription identifier, device PSK, subscription PSK) in advance before sending them to the authentication server, allowing the server to process all authentication types in parallel within a single procedure, thereby reducing network login time while maintaining comprehensive authentication coverage

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP1915837B1Method for performing multiple pre-shared key based authentication at once and system for executing the method

Publication Date: 2020.04.22 SAMSUNG ELECTRONICS CO LTD

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AI summary

A method and apparatus for performing a multiple Pre-Shared Key (PSK) based authentication in a single procedure is described, where the multiple PSK based authentication generates a combined credential in a terminal by using a plurality of credentials including a user identifier and the PSK, and authenticates the terminal in an authentication server by using the combined credential.