Foundations and applications for secure triggers

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Foundations and applications for secure triggers (2006)

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by Ariel Futoransky , Emiliano Kargieman , Carlos Sarraute , Ariel Waissbein

Venue:	In ACM Transactions of Information Systems Security
Citations:	3 - 2 self

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@INPROCEEDINGS{Futoransky06foundationsand,
    author = {Ariel Futoransky and Emiliano Kargieman and Carlos Sarraute and Ariel Waissbein},
    title = {Foundations and applications for secure triggers},
    booktitle = {In ACM Transactions of Information Systems Security},
    year = {2006},
    pages = {2006}
}

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Abstract

Imagine there is certain content we want to maintain private until some particular event occurs, when we want to have it automatically disclosed. Suppose furthermore, that we want this done in a (possibly) malicious host. Say, the confidential content is a piece of code belonging to a computer program that should remain ciphered and then “be triggered ” (i.e., deciphered and executed) when the underlying system satisfies a preselected condition which must remain secret after code inspection. In this work we present different solutions for problems of this sort, using different “declassification ” criteria, based on a primitive we call secure triggers. We establish the notion of secure triggers in the universally-composable security framework of [Canetti 2001] and introduce several examples. Our examples demonstrate that a new sort of obfuscation is possible. Finally, we motivate its use with applications in realistic scenarios. 1

Keyphrases

secure trigger confidential content new sort different declassification criterion malicious host particular event occurs universally-composable security framework present different solution realistic scenario code belonging computer program several example certain content code inspection preselected condition

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