Three-Way Handshake Authentication for IP Network Spoofing Prevention
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Solution Overview
Problem
Current data communication in IP networks faces challenges with impersonation of IP addresses, requiring complex and costly authentication and encryption methods that may not guarantee secure data transmission if keys are leaked or decoded.
Innovation Solution
A method where communication devices in an IP network establish a three-way handshake using unique identification numbers, disconnect, and then re-establish connections based on response signals to validate authenticity, ensuring secure data communication without the need for complex authentication key generation or encryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication key generation or encryption methods are used to prevent spoofing, then data transmission security is improved, but system complexity and cost increase
Solution Approach 1:
The patent extracts the authentication function from complex encryption systems and implements it through a simplified three-way handshake process using only IP address verification. This separates the essential authentication capability from the cumbersome encryption infrastructure, achieving security through a lightweight mechanism that does not require key management or decryption capabilities.
Solution Approach 2:
The patent employs disposable session identifiers generated during each three-way handshake that are valid only for that specific connection session. These temporary authentication tokens are discarded after use, eliminating the need for long-term key management and reducing the risk associated with key leakage while maintaining security.
2Reliability
If authentication key generation or encryption methods are used to prevent spoofing, then data transmission security is improved, but implementation cost increases
Solution Approach 1:
The patent implements self-service authentication where the network infrastructure itself performs verification of IP addresses during the three-way handshake process. Routers and switches automatically validate whether the source IP address matches the expected destination IP address, eliminating the need for external authentication servers or expensive security appliances.
Solution Approach 2:
The patent makes existing network infrastructure devices (routers, switches) perform multiple functions including both data forwarding and security authentication. By enabling these universal devices to handle both routing and spoofing prevention, the system avoids the need for dedicated security hardware, reducing overall implementation cost.
3Ease of operation
If IP address-based connection is used, then communication simplicity is improved, but vulnerability to spoofing increases
Solution Approach 1:
The patent introduces feedback mechanisms in the form of acknowledgment packets during the three-way handshake process. Each device verifies the other's identity through bidirectional IP address confirmation, creating a feedback loop that ensures both parties are authentic before establishing communication. This maintains simplicity while adding security through verification feedback.
Solution Approach 2:
The patent applies preliminary anti-action by proactively verifying IP address authenticity before allowing data transmission to begin. The three-way handshake process performs spoofing prevention checks in advance, blocking potential attacks before they can compromise the communication, thus maintaining simplicity while preventing harm.
Data Source
AI summary
Communication devices to an IP network through communication lines to each of which a unique identification number is assigned and, in each communication device, the identification numbers of other communication devices allowed to communicate with the each communication device are registered, and the communication lines are uniquely connected for data communication by a three-way handshake based on the identification numbers. A communication line activates another communication line. When a connection is established, the connection is disconnected. It is determined at the activated communication line if a response signal from the activating communication line as a response to a call back signal sent to the activating communication line at a predetermined timing arrives, and it is determined at the activating communication line if a call back signal from the activated communication line arrives. Data communication is performed only when both the activating and activated communication lines are validated.