Decentralized Cryptographic Record Exchange via Short-Range Links
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Solution Overview
Problem
Conventional digital transmission systems face challenges in securely exchanging cryptographically signed records over networks, particularly in ensuring authentication, security, and preventing malicious behaviors such as cloning and forking, while maintaining ease of use and accessibility.
Innovation Solution
A method for securely exchanging cryptographically signed records using public key cryptography, where records can be created, sent, and redeemed in a decentralized manner, with features like peer-to-peer transactions, short-range links, and secure storage of private keys, ensuring authentication and preventing malicious activities through endorsement blocks and signature verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional digital transmission systems are used for exchanging records over a network, then connectivity and authentication are enabled, but continuous network access and connection to central data centers are required, reducing accessibility and ease of use
Solution Approach 1:
The system segments the authentication process into two independent components: (1) record creation with cryptographic signing using private keys stored locally on devices, and (2) record validation using publicly distributed key information. This segmentation eliminates the need for continuous connection to central authentication servers, as parties can create and validate records offline using locally stored cryptographic materials.
Solution Approach 2:
Public key information is disseminated to all parties before the actual record exchange occurs. This preliminary distribution of authentication credentials enables parties to perform cryptographic validation of records without needing to connect to central data centers during the exchange process, thereby enabling offline accessibility while maintaining security.
2Ease of operation
If decentralized peer-to-peer transactions are implemented, then accessibility and ease of use are improved, but security and prevention of malicious behaviors may be compromised
Solution Approach 1:
Cryptographic signatures and public key information serve as intermediaries in the peer-to-peer transaction system. These cryptographic mechanisms mediate the verification process between parties, providing a trusted framework for authentication without requiring centralized control. The cryptographic intermediary ensures that even in decentralized transactions, security is maintained through mathematical proof of authenticity.
3Reliability
If cryptographic signature verification is performed, then authentication and security are enhanced, but system complexity increases
Solution Approach 1:
Each party's device is configured with its own private key for signing records and its own public key for validation. This self-service approach means that cryptographic operations are performed locally on each device without requiring complex centralized cryptographic infrastructure. The system leverages the computational capabilities of individual devices to perform cryptographic functions independently, reducing overall system complexity.
Data Source
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AI summary
Systems and methods for securely exchanging cryptographically signed records are disclosed. In one aspect, after receiving a content request, a sender device can send a record to a receiver device (e.g., an agent device) making the request. The record can be sent via a short range link in a decentralized (e.g., peer-to-peer) manner while the devices may not be in communication with a centralized processing platform. The record can comprise a sender signature created using the sender device's private key. The receiver device can verify the authenticity of the sender signature using the sender device's public key. After adding a cryptography-based receiver signature, the receiver device can redeem the record with the platform. Upon successful verification of the record, the platform can perform as instructed by a content of the record (e.g., modifying or updating a user account).