Blockchain for Banking News Technology

Visa builds blockchain-based trusted execution environment

VISA
Today, Visa has published a paper claiming to describe the first trusted execution environment (TEE) which allows fair, policy-compliant computation. A TEE partitions off some of a processor so it can work on sensitive data and keep it safe. Unlike other TEEs, however, LucidiTEE can protect against bad actors manipulating outputs by using a shared ledger of computation history. In testing, permissioned blockchains, including Hyperledger, were used as the ledger. The paper from Visa’s researchers introduced LucidiTEE as: “the first system to enable multiple parties to jointly compute on large-scale private data, while guaranteeing policy-compliance even when the input providers are offl­ine, and fairness to all output recipients.”

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