25 search results - page 4 / 5 » Identity-Based Proxy Re-encryption Without Random Oracles |
ACNS
2005
Springer
14 years 1 months ago
2005
Springer
This paper presents a first example of secure identity based encryption scheme (IBE) without redundancy in the sense of Phan and Pointcheval. This modification of the Boneh-Frank...
CTRSA
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. We present a non-interactive chosen ciphertext secure threshold encryption system. The proof of security is set in the standard model and does not use random oracles. Our...
ASIACRYPT
2005
Springer
14 years 1 months ago
2005
Springer
In this paper, we discuss non-interactive updating of decryption keys in identity-based encryption (IBE). IBE is a public key cryptosystem where a public key is an arbitrary strin...
EUROCRYPT
2006
Springer
13 years 11 months ago
2006
Springer
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
PROVSEC
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. Signcryption as a single cryptographic primitive offers both confidentiality and authentication simultaneously. Generally in signcryption schemes, the message is hidden a...