Tsinghua U.

Proof-Carrying Data and Hearsay Arguments from Signature Cards

11 years 1 months ago
Proof-Carrying Data and Hearsay Arguments from Signature Cards
: Design of secure systems can often be expressed as ensuring that some property is maintained at every step of a distributed computation among mutually-untrusting parties. Special cases include integrity of programs running on untrusted platforms, various forms of confidentiality and side-channel resilience, and domain-specific invariants. We propose a new approach, proof-carrying data (PCD), which circumnavigates the threat of faults and leakage by reasoning about properties of the output data, independently of the preceding computation. In PCD, the system designer prescribes the desired properties of the computation's outputs. Corresponding proofs are attached to every message flowing through the system, and are mutually verified by the system's components. Each such proof attests that the message's data and all of its history comply with the specified properties. We construct a general protocol compiler that generates, propagates and verifies such proofs of complianc...
Alessandro Chiesa, Eran Tromer
Added 02 Mar 2010
Updated 02 Mar 2010
Type Conference
Year 2010
Where ICS
Authors Alessandro Chiesa, Eran Tromer
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