Tor Network Onion Routing for Mobile Communication Anonymity

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Solution Overview

Problem

Existing secure communication methods for mobile terminals fail to anonymize connection data, allowing identification of communication parties and potential traffic analysis.

Innovation Solution

Integration of the Tor network with onion routing and hidden services for anonymization, using randomly chosen routes and virtual 'hidden service' lines to encrypt and obscure communication relationships, combined with secure storage and anti-spoofing mechanisms to protect message confidentiality and user identities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If traditional encryption methods are used to protect message content, then message confidentiality is improved, but connection data remains exposed allowing traffic analysis

Engineering Contradiction:
Improvemessage confidentialityVSAvoidanonymity protection
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The patent implements nested encryption by placing content encryption (PGP/GPG) inside a larger anonymization layer (Tor network). The message content is first encrypted using PGP/GPG, then this encrypted data is further protected by routing it through Tor's onion routing network with multiple layers of encryption. This nested structure ensures that both content confidentiality and connection anonymity are achieved simultaneously.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The Tor network acts as an intermediary between the user and the communication partner. Instead of direct connection, messages pass through multiple Tor relays that strip away identifying information. The hidden service mechanism introduces additional intermediaries (onion services, rendezvous points) that prevent direct mapping between sender and receiver, thereby protecting anonymity while maintaining communication confidentiality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If direct connection is used for communication, then communication efficiency is improved, but communication parties can be identified

Engineering Contradiction:
Improvecommunication efficiencyVSAvoididentity protection
Core Design Contradiction:
ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent transitions from direct point-to-point connection to multi-dimensional onion routing through Tor's relay network. Messages traverse multiple hops through different relays, adding spatial dimensions to the communication path. This dimensional transformation obscures the direct connection relationship while maintaining communication efficiency through established Tor circuit optimizations.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The communication connection is segmented into multiple independent hops through Tor's relay network. Each relay handles only a segment of the communication path, preventing any single point from observing the complete communication relationship. The connection is divided into entry guards, middle relays, and exit nodes, each performing a limited function that collectively provides end-to-end anonymity.

Inventive Principle:
Principle #1Segmentation

3Reliability

If encryption keys are stored in secure storage, then security is improved, but the system becomes vulnerable to man-in-the-middle attacks during key exchange

Engineering Contradiction:
ImprovesecurityVSAvoidman-in-the-middle attacks
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies preliminary anti-action by implementing Tor's onion routing encryption before key exchange occurs. The communication channels are established through Tor's pre-configured relay network with embedded encryption layers. This preliminary protective measure ensures that even if key exchange is observed, the encrypted traffic flowing through Tor cannot be decrypted or intercepted by man-in-the-middle attackers.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The system provides beforehand cushioning by routing all communication through Tor's anonymization network before sensitive operations occur. The onion routing layers act as a protective cushion that absorbs and deflects potential man-in-the-middle attacks. Even if the key exchange process is vulnerable, the Tor layer provides a safety buffer that prevents direct interception of cryptographic materials.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS9231919B2Method and device for anonymous encrypted mobile data and speech communication
Publication Date: 2016.01.05 GSMK FUR SICHERE MOBILE KOMMUNIKATION MBH
  • US9231919B2 patent drawing

AI summary

The invention relates to a method for anonymizing the communication of mobile terminals which permit speech communication, using an anonymizing network which comprises a series of routers and which has at least one access node, wherein each mobile terminal establishes a connection with at least one access node, comprising the following steps:signing the mobile terminal onto the network via an access node;preparation of an identity in the network;communication via the anonymized network, wherein the network selects different random routes through the network for communication, so that back-tracing is prevented and wherein communication is encrypted.