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PRIVACY-PRESERVING SUPPLY CHAIN VERIFICATION FOR MULTIPLE ASSET TYPES IN SHARED DATA STORAGE SCENARIOS
PRIVACY-PRESERVING SUPPLY CHAIN VERIFICATION FOR MULTIPLE ASSET TYPES IN SHARED DATA STORAGE SCENARIOS
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机译:共享数据存储场景中多种资产类型的隐私保护供应链验证
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摘要
Methods, systems, and computer-readable storage media for receiving an index and a random number from a verifier, receiving, from a shared data storage, encrypted supply chain data (SCD) of a supply chain actor (SCA), re-encrypting the encrypted SCD to provide re-encrypted SCD using a public encryption key of a decryption party, executing homomorphic operations on the re-encrypted SCD to provide an encrypted blinded result using second random numbers, receiving an encrypted modified blinded result, generating an encrypted blinded verification result using a verification function, the encrypted blinded result, the encrypted modified blinded result, and the random number, and sending the encrypted blinded verification result for decryption to provide a blinded verification result to the verifier, the verifier determining a verification result based on the blinded verification result and the random number, and comparing the verification result to a product claim.
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