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  Efficient lont-term Secure Universally Composable Commitments

Ciobotaru, O.-M. (2008). Efficient lont-term Secure Universally Composable Commitments. Master Thesis, Universität des Saarlandes, Saarbrücken.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-BABF-B Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0027-BAC0-5
Genre: Thesis

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Masterarbeit-Oana-Ciobotaru.pdf (Any fulltext), 309KB
 
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 Creators:
Ciobotaru, Oana-Madalina1, Author
Unruh, Dominique2, Referee
Backes, Michael2, Advisor
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1International Max Planck Research School, MPI for Informatics, Max Planck Society, Campus E1 4, 66123 Saarbrücken, DE, ou_1116551              
2External Organizations, ou_persistent22              

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 Abstract: Long-term security ensures that a protocol remains secure even in the future, when the adversarial computational power could, potentially, become unlimited. The notion of universal composability preserves the security of a cryptographic protocol when it is used in combination with any other protocols, in possibly complex systems. The area of long-term universally composable secure protocols has been developed mostly by Müller-Quade and Unruh. Their research conducted so far has shown the existence of secure long-term UC commitments under general cryptographic assumptions, thus without having an emphasis on the efficiency of the protocols designed. Building on their work and using very efficient zero-knowledge proofs of knowledge from [CL02], this thesis presents a new long-term universally composable secure commitment protocol that is both efficient and plausible to use in practice.

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Language(s): eng - English
 Dates: 2008-022008
 Publication Status: Issued
 Pages: -
 Publishing info: Saarbrücken : Universität des Saarlandes
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: Ciobotaru2008
 Degree: Master

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