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EUROCRYPT
2004
Springer
10 years 1 months ago
The Hierarchy of Key Evolving Signatures and a Characterization of Proxy Signatures
For the last two decades the notion and implementations of proxy signatures have been used to allow transfer of digital signing power within some context (in order to enable flexi...
Tal Malkin, Satoshi Obana, Moti Yung
EUROCRYPT
2004
Springer
10 years 1 months ago
Sequential Aggregate Signatures from Trapdoor Permutations
An aggregate signature scheme (recently proposed by Boneh, Gentry, Lynn, and Shacham) is a method for combining n signatures from n different signers on n different messages int...
Anna Lysyanskaya, Silvio Micali, Leonid Reyzin, Ho...
EUROCRYPT
2004
Springer
10 years 1 months ago
Positive Results and Techniques for Obfuscation
Informally, an obfuscator O is an efficient, probabilistic “compiler” that transforms a program P into a new program O(P) with the same functionality as P, but such that O(P)...
Ben Lynn, Manoj Prabhakaran, Amit Sahai
EUROCRYPT
2004
Springer
10 years 1 months ago
Projective Coordinates Leak
Denoting by P = [k]G the elliptic-curve double-and-add multiplication of a public base point G by a secret k, we show that allowing an adversary access to the projective representa...
David Naccache, Nigel P. Smart, Jacques Stern
EUROCRYPT
2004
Springer
10 years 1 months ago
Black-Box Composition Does Not Imply Adaptive Security
In trying to provide formal evidence that composition has security increasing properties, we ask if the composition of non-adaptively secure permutation generators necessarily pro...
Steven Myers
EUROCRYPT
2004
Springer
10 years 1 months ago
On the Hardness of Information-Theoretic Multiparty Computation
We revisit the following open problem in information-theoretic cryptography: Does the communication complexity of unconditionally secure computation depend on the computational com...
Yuval Ishai, Eyal Kushilevitz
EUROCRYPT
2004
Springer
10 years 1 months ago
Traceable Signatures
Abstract. This work presents a new privacy primitive called “Traceable Signatures”, together with an efficient provably secure implementation. To this end, we develop the unde...
Aggelos Kiayias, Yiannis Tsiounis, Moti Yung
EUROCRYPT
2004
Springer
10 years 1 months ago
Handcuffing Big Brother: an Abuse-Resilient Transaction Escrow Scheme
Stanislaw Jarecki, Vitaly Shmatikov
EUROCRYPT
2004
Springer
10 years 1 months ago
Dining Cryptographers Revisited
Abstract. Dining cryptographers networks (or DC-nets) are a privacypreserving primitive devised by Chaum for anonymous message publication. A very attractive feature of the basic D...
Philippe Golle, Ari Juels
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