Encrypted Location Sharing with Secure Key Exchange
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Solution Overview
Problem
Location data shared between electronic devices is vulnerable to interception and access by intermediate devices and servers when transmitted in the clear, compromising user privacy.
Innovation Solution
Implementing end-to-end encryption using a public-private keypair, where the first key is shared securely with other users, and the second key is used to encrypt location data, which is then transmitted to a server for caching, ensuring only authorized devices can decrypt it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If location data is transmitted in the clear between electronic devices, then transmission simplicity and server accessibility are improved, but vulnerability to interception and privacy compromise worsen
Solution Approach 1:
The patent transforms location data from plaintext to encrypted form by changing its cryptographic state. Encryption converts the data parameter from readable text to cipher text, preventing interception while maintaining transmitability. The encrypted location data can still be transmitted over networks but requires decryption keys to be rendered useful, thus resolving the contradiction between transmission simplicity and security vulnerability.
Solution Approach 2:
The patent introduces encryption algorithms and key management systems as intermediaries between the location data and the transmission channel. These cryptographic intermediaries protect the data during transmission without preventing legitimate access by authorized parties who possess the decryption keys, thus maintaining both transmission capability and security.
2Reliability
If end-to-end encryption is implemented using public-private keypair, then security and privacy are improved, but system complexity and computational overhead worsen
Solution Approach 1:
The patent performs key pair generation and key exchange operations in advance before actual location data transmission. By establishing the cryptographic infrastructure beforehand, the system reduces real-time computational complexity during ongoing location sharing. The encryption keys are prepared and distributed prior to data transmission, so that subsequent encryption operations are straightforward applications of pre-established cryptographic parameters.
Data Source
AI summary
A device implementing end-to-end encryption for location sharing may include at least one processor configured to generate a public-private keypair. The at least one processor may be further configured to encrypt, using a first key of the public-private keypair, location data corresponding to a location of the electronic device. The at least one processor may be further configured to transmit, to a server, the encrypted location data for storage. The at least one processor may be further configured to transmit, via a secure communication channel, a second key of the public-private keypair to another electronic device for subsequent retrieval of the encrypted location data by the other electronic device.