175 search results - page 4 / 35 » Improved Generalized Birthday Attack |
IJNSEC
2006
13 years 9 months ago
2006
To enhance applications of smart cards, Miyazaki and Takaragi proposed a (t, n) threshold digital signature scheme based on the security of elliptic curve discrete logarithm (ECDL...
PODC
2010
ACM
14 years 28 days ago
2010
ACM
We present Gatekeeper, a decentralized protocol that performs Sybil-resilient node admission control based on a social network. Gatekeeper can admit most honest nodes while limiti...
EUROCRYPT
2003
Springer
14 years 2 months ago
2003
Springer
Abstract. In this paper, we study the security of the Encrypt-MaskDecrypt mode of operation, also called EMD, which was recently proposed for applications such as disk-sector encry...
CSCW
2008
ACM
13 years 10 months ago
2008
ACM
Social networks are popular for online communities. This paper evaluates the risk of sophisticated context-aware spam that could result from information sharing on social networks...
MYCRYPT
2005
Springer
14 years 2 months ago
2005
Springer
Recently, some collisions have been exposed for a variety of cryptographic hash functions [20,21] including some of the most widely used today. Many other hash functions using simi...