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We initiate the study of incorporating remotely unhackable hardware modules, such as air-gap switches and data diodes, into the field of multi-party computation. As a result, we are able to construct ...
We introduce a variant of the Universal Composability framework (UC; Canetti, FOCS 2001) that uses symbolic cryptography. Two salient properties of the UC framework are secure composition and the poss...
The universal composability paradigm allows for the modular design and analysis of cryptographic protocols. It has been widely and successfully used in cryptography. However, devising a coherent yet s...
We exhibit a hash-based storage auditing scheme which is provably secure in the random-oracle model (ROM), but easily broken when one instead uses typical indifferentiable hash constructions.
We put forward a framework for the modular design and analysis of multi-party protocols. Our framework is called ``GNUC'' (with the recursive meaning ``GNUC's Not UC''), already alluding to the simila...
We exhibit a hash-based storage auditing scheme which is provably secure in the random-oracle model (ROM), but easily broken when one instead uses typical indifferentiable hash constructions. This con...
We put forward a framework for the modular design and analysis of multi-party protocols. Our framework is called ``GNUC'' (with the recursive meaning ``GNUC's Not UC''), already alluding to the simila...
It is impossible to securely carry out general multi-party computation in arbitrary network contexts like the Internet, unless protocols have access to some trusted setup. In this work we classify the...
It is impossible to securely carry out general multi-party computation in arbitrary network contexts like the Internet, unless protocols have access to some trusted setup. In this work we classify the...
Universal composability and concurrent general composition consider a setting where secure protocols are run concurrently with each other and with arbitrary other possibly insecure pro- tocols. Prot...
In the literature, voting protocols are considered secure if they satisfy requirements such as privacy, accuracy, robustness, etc. It can be time consuming to evaluate a voting protocol with respect...
Concurrent general composition relates to a setting where a secure protocol is run in a network concurrently with other, arbitrary protocols. Clearly, security in such a setting is what is desired, o...
We propose a modification to the framework of Universally Composable (UC) security [3]. Our new notion, involves comparing the protocol executions with an ideal execution involving ideal functionalit...
Algorithmic progress and future technology threaten todays cryptographic protocols. Long-term secure protocols should not even in future reveal more information to a—then possibly unlimited—adversa...
The Universal Composability framework was introduced by Canetti to study the security of protocols which are concurrently executed with other protocols in a network environment.

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