Results 221 to 230 of about 488,795 (269)

Classification of signature-only signature models

Science in China Series F: Information Sciences, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhengjun Cao, Mulan Liu
openaire   +1 more source

Signature files and signature trees

Information Processing Letters, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Optimal distribution of signatures in signature hashing

IEEE Transactions on Knowledge and Data Engineering, 1992
G.H. Gonnet and P.A. Larson (1982) proposed a hashing scheme for external files which guarantees single access retrieval. They provided an asymptotic analysis of the scheme assuming uniform distribution of the signatures. This paper addresses an open problem posed by them in a second work (J.
M. V. Ramakrishna, Edgar A. Ramos
openaire   +1 more source

Research on anonymous signatures and group signatures

Computer Communications, 2008
In this paper, we analyze the conventional group signature schemes, and propose the notion of conflict of authenticated contents which implies the unconquerable drawbacks of the current group signature schemes and threshold signature schemes. We discuss an important problem of group signature, that is, whether the group signature is produced on behalf ...
Fucai Zhou, Jun Zhang, Jian Xu 0004
openaire   +1 more source

Security Arguments for Digital Signatures and Blind Signatures

Journal of Cryptology, 2000
This paper proves the security of a large class of signature schemes in the so-called random oracle model. This model assumes that the hash function used in a signature scheme behaves as a random function. However, it has been shown that there exist (contrived) schemes that are provably secure in the random oracle model, but not when used with a real ...
David Pointcheval, Jacques Stern
openaire   +1 more source

Nominative Signature from Ring Signature

2007
Since the introduction of nominative signature (NS) in 1996, there have been a handful of schemes proposed and almost all of them have been found flawed. The only one which is secure requires multiround of communications between the nominator and the nominee for signature generation. In this paper, we propose a novel construction which is efficient and
Dennis Y. W. Liu, Shuang Chang, Duncan S. Wong, Yi Mu 0001   +3 more
openaire   +1 more source

A Signature Complexity Measure to Select Reference Signatures for Online Signature Verification

2015 International Conference of the Biometrics Special Interest Group (BIOSIG), 2015
This paper presents an original procedure for selecting the reference online signature instances of a writer, an important issue for any effective signature verifier. To this end, for each signature instance, we propose a novel complexity measure, by exploiting a global description of signatures in the frequency domain as well as a global statistical ...
Christian Kahindo, Sonia Garcia-Salicetti, Nesma Houmani   +2 more
openaire   +1 more source

Ring Signature Based on ElGamal Signature

2006
Ring signature was first introduced by Rivest, Shamir and Tanman in 2001. In a ring signature, instead of revealing the actual identity of the message signer, it specifies a set of possible signers. The verifier can be convinced that the signature was indeed generated by one of the ring members, however, he is unable to tell which member actually ...
Jian Ren 0001, Lein Harn
openaire   +1 more source

On the Signature Trees and Balanced Signature Trees

21st International Conference on Data Engineering (ICDE'05), 2005
Advanced database application areas, such as computer aided design, office automation, digital libraries, data-mining as well as hypertext and multimedia systems need to handle complex data structures with set-valued attributes, which can be represented as bit strings, called signatures.
openaire   +1 more source

Signatures of Strings

Annals of Combinatorics, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hartke, Stephen G., Radcliffe, A. J.
openaire   +2 more sources