94 search results - page 11 / 19 » Proxy Re-signature Schemes Without Random Oracles |
JOC
2010
13 years 7 months ago
2010
We present a new encryption scheme which is secure against adaptive chosenciphertext attack (or CCA2-secure) in the standard model (i.e. without the use of random oracle). Our sch...
EUROCRYPT
2003
Springer
14 years 1 months ago
2003
Springer
Abstract. Digital Signatures emerge naturally from Public-Key Encryption based on trapdoor permutations, and the “duality” of the two primitives was noted as early as Diffie-He...
JUCS
2008
13 years 8 months ago
2008
Abstract: Recently, Au et al. [Au et al. 2007] pointed out a seemingly neglected security concern for certificateless public key encryption (CL-PKE) scheme, where a malicious key g...
IACR
2011
12 years 8 months ago
2011
Although malleability is undesirable in traditional digital signatures, schemes with limited malleability properties enable interesting functionalities that may be impossible to o...
ASIACRYPT
2006
Springer
14 years 10 days ago
2006
Springer
In this paper, we propose a new approach for constructing selectively convertible undeniable signature schemes, and present two efficient schemes based on RSA. Our approach allows ...