Visa Inc.
System, method, and computer program product for detecting malicious changelog modifications with blockchain

Abstract:

Described are a system, method, and computer program product for detecting malicious changelog modifications with blockchain. The method includes receiving, from a computing device of a user, a request for a database transaction. The method also includes determining transaction-operative data associated with the database transaction and a user identifier. The method further includes generating an encrypted transaction record including the transaction-operative data and the user identifier. The method further includes broadcasting the encrypted transaction record to a changelog blockchain and, in response to receiving a confirmation of publication as a changelog record, initiating the database transaction. The method further includes receiving a verification request and the changelog record from a target blockchain. The method further includes determining a public key associated with the user, attempting to decrypt the changelog record using the public key and, based on the result, detecting tampering or verifying the target blockchain.