How Do “Signed Data” and “Cryptographic Proof” Enhance the Security of Oracle Price Feeds?
Oracle nodes use their private keys to cryptographically sign the data they submit to the blockchain. This signed data acts as a cryptographic proof, allowing the smart contract to verify that the price information genuinely came from a specific, trusted node and has not been tampered with in transit.
This ensures data authenticity and non-repudiation, which is crucial for the integrity of the settlement process.