345 search results - page 56 / 69 » On the Security of a Variation of Cramer-Shoup's Public Key ... |
EUROCRYPT
2004
Springer
13 years 11 months ago
2004
Springer
We introduce Ad Hoc Anonymous Identification schemes, a new multi-user cryptographic primitive that allows participants from a user population to form ad hoc groups, and then prove...
IACR
2011
12 years 7 months ago
2011
In this paper we present a new practical key-recovery attack on the SFLASH signature scheme. SFLASH is a derivative of the older C∗ encryption and signature scheme that was broke...
INFORMATICALT
2010
13 years 5 months ago
2010
In a fuzzy identity-based encryption (IBE) scheme, a user with the secret key for an identity ID is able to decrypt a ciphertext encrypted with another identity ID if and only if I...
PKC
2010
Springer
13 years 11 months ago
2010
Springer
Abstract. In this paper, we fully break the Algebraic Surface Cryptosystem (ASC for short) proposed at PKC’2009 [3]. This system is based on an unusual problem in multivariate cr...
PKC
2007
Springer
14 years 1 months ago
2007
Springer
Abstract. Multivariate Cryptography has been an active line of research for almost twenty years. While most multivariate cryptosystems have been under attack, variations of the bas...