Cross-Blockchain Address Correlation Using Shared Public Keys
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Solution Overview
Problem
Existing blockchain networks lack the ability to correlate cryptographic addresses across multiple networks, hindering the tracing of illicit activities that span across different blockchain systems.
Innovation Solution
A system and method for correlating cryptographic addresses across multiple blockchain networks using cryptographic public keys and one-way hash functions, enabling the association of addresses through common key pairs and generating a database of cross-blockchain network addresses for tracing illicit activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blockchain networks maintain pseudonymous identity to ensure trustless operation and user protection, then security and user privacy are improved, but the ability to trace illicit activities across networks deteriorates
Solution Approach 1:
The patent introduces a cryptographic correlation system as an intermediary that bridges multiple blockchain networks. This system uses public key extraction and hash function computation to create a linking mechanism between addresses on different networks, enabling law enforcement and analytical tools to trace illicit activities across network boundaries while preserving the underlying pseudonymity of the blockchains themselves
Solution Approach 2:
The patent adds a new dimensional layer of analysis by computing cryptographic address hashes and creating cross-network correlations. Instead of attempting to break the pseudonymity within individual networks, the solution operates in a higher-dimensional space by extracting public keys and computing hashes that can be correlated across networks, thereby enabling traceability without compromising the trustless nature of individual blockchains
2Adaptability or versatility
If blockchain networks operate independently with their own cryptographic systems, then network autonomy and security are improved, but the ability to correlate addresses across networks deteriorates
Solution Approach 1:
The patent applies universality by demonstrating that the cryptographic correlation system can operate across multiple different blockchain networks simultaneously. By extracting public keys and computing hashes using universal cryptographic principles (elliptic curve cryptography and hash functions), the system enables address correlation across diverse networks while each network maintains its own autonomous cryptographic system and operational independence
3Measurement precision
If traditional tracing methods are used within single blockchain networks, then tracing accuracy within a network is improved, but the ability to trace activities across multiple networks deteriorates
Solution Approach 1:
The patent merges tracing capabilities across multiple blockchain networks by combining public key extraction, hash function computation, and cross-network correlation techniques. This unified approach maintains the tracing accuracy achieved within individual networks while extending the capability to correlate addresses across network boundaries, thereby enabling comprehensive cross-network tracing that preserves the precision of individual network analysis
Data Source
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AI summary
Embodiments include systems and methods for determining cryptographic address for a same entity across a plurality of distributed blockchain networks that use a same elliptic curve. In some embodiments the method includes computing a cryptographic address hash of the first cryptographic address using the cryptographic public key of the first cryptographic address, the cryptographic address hash being a common representation of the first entity on the first distributed blockchain network and the cryptographic address hash being derived via a cryptographic one-way hash function, the cryptographic one-way hash function following a protocol of performing a function on the cryptographic public key, the cryptographic public key being used on the first distributed blockchain network and a second distributed blockchain network, the first distributed blockchain network and the second distributed blockchain network using the same elliptic curve.