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PKC
2009
Springer
129views Cryptology» more  PKC 2009»
14 years 2 months ago
Zero-Knowledge Proofs with Witness Elimination
Abstract. Zero-knowledge proofs with witness elimination are protocols that enable a prover to demonstrate knowledge of a witness to the verifier that accepts the interaction prov...
Aggelos Kiayias, Hong-Sheng Zhou
PKC
2009
Springer
172views Cryptology» more  PKC 2009»
14 years 10 months ago
CCA-Secure Proxy Re-encryption without Pairings
ded abstract of this paper appears in PKC 2009, S. Jarecki, G. Tsudik (Eds.), volume 5443 of LNCS, pp. 357-376, Sringer-Verlag, 2009. CCA-Secure Proxy Re-Encryption without Pairing...
Jun Shao, Zhenfu Cao
PKC
2009
Springer
175views Cryptology» more  PKC 2009»
14 years 10 months ago
Implicit Factoring: On Polynomial Time Factoring Given Only an Implicit Hint
We address the problem of polynomial time factoring RSA moduli N1 = p1q1 with the help of an oracle. As opposed to other approaches that require an oracle that explicitly outputs b...
Alexander May, Maike Ritzenhofen
PKC
2009
Springer
142views Cryptology» more  PKC 2009»
14 years 10 months ago
Identification of Multiple Invalid Signatures in Pairing-Based Batched Signatures
This paper describes new methods in pairing-based signature schemes for identifying the invalid digital signatures in a batch, after batch verification has failed. These methods ef...
Brian J. Matt
PKC
2009
Springer
121views Cryptology» more  PKC 2009»
14 years 10 months ago
Fast Multibase Methods and Other Several Optimizations for Elliptic Curve Scalar Multiplication
Recently, the new Multibase Non-Adjacent Form (mbNAF) method was introduced and shown to speed up the execution of the scalar multiplication with an efficient use of multiple bases...
Patrick Longa, Catherine H. Gebotys
PKC
2009
Springer
131views Cryptology» more  PKC 2009»
14 years 10 months ago
Towards Black-Box Accountable Authority IBE with Short Ciphertexts and Private Keys
At Crypto'07, Goyal introduced the concept of Accountable Authority Identity-Based Encryption as a convenient tool to reduce the amount of trust in authorities in Identity-Bas...
Benoît Libert, Damien Vergnaud
PKC
2009
Springer
116views Cryptology» more  PKC 2009»
14 years 10 months ago
Improving the Boneh-Franklin Traitor Tracing Scheme
Abstract. Traitor tracing schemes are cryptographically secure broadcast methods that allow identification of conspirators: if a pirate key is generated by k traitors out of a stat...
Pascal Junod, Alexandre Karlov, Arjen K. Lenstra
PKC
2009
Springer
126views Cryptology» more  PKC 2009»
14 years 10 months ago
Verifiable Rotation of Homomorphic Encryptions
Similar to verifiable shuffling (or, mixing), we consider the problem of verifiable rotating (and random re-encrypting) a given list of homomorphic encryptions. The offset by which...
Sebastiaan de Hoogh, Berry Schoenmakers, Boris Sko...
PKC
2009
Springer
102views Cryptology» more  PKC 2009»
14 years 10 months ago
A Practical Key Recovery Attack on Basic TCHo
TCHo is a public key encryption scheme based on a stream cipher component, which is particular suitable for low cost devices like RFIDs. In its basic version, TCHo offers no IND-CC...
Mathias Herrmann, Gregor Leander
PKC
2009
Springer
129views Cryptology» more  PKC 2009»
14 years 10 months ago
Modeling Key Compromise Impersonation Attacks on Group Key Exchange Protocols
A key exchange protocol allows a set of parties to agree upon a secret session key over a public network. Two-party key exchange (2PKE) protocols have been rigorously analyzed unde...
Colin Boyd, Juan Manuel González Nieto, M. ...