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Cryptology ePrint Archive
February 21, 2018
To this end, CALYPSO proposes on-chain secrets, a novel abstraction that enforces atomic deposition of an auditable trace whenever users access confidential data. Furthermore, CALYPSO provides user-controlled consent management that ensures revocation atomicity and accountable anonymity. Finally, to enable the permissionless deployment of CALYPSO, we introduce an incentive scheme and provide users with the option to select their preferred trustees. We evaluated our CALYPSO prototype with a confidential document sharing application and a decentralized lottery. Our benchmarks show that the latency of processing transactions increases linearly to the added security (in number of trustees) and is in the range of 0.2 to 8 seconds for 16 to 128 trustees.
|Topics: Security Privacy Cryptography Blockchain||Bryan Ford|