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» Identity-Based Cryptography for Grid Security
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FC
2006
Springer
147views Cryptology» more  FC 2006»
13 years 11 months ago
Timed-Release and Key-Insulated Public Key Encryption
In this paper we consider two security notions related to Identity Based Encryption: Key-insulated public key encryption, introduced by Dodis, Katz, Xu and Yung; and Timed-Release ...
Jung Hee Cheon, Nicholas Hopper, Yongdae Kim, Ivan...
PDCAT
2004
Springer
14 years 28 days ago
GridCrypt: High Performance Symmetric Key Cryptography Using Enterprise Grids
Today’s cryptanalysis on symmetric key cryptography is encouraging the use of larger key sizes and complex algorithms to achieve an unbreakable state. However, this leads an inc...
Agus Setiawan, David Adiutama, Julius Liman, Aksha...
ACNS
2007
Springer
165views Cryptology» more  ACNS 2007»
14 years 1 months ago
Tweaking TBE/IBE to PKE Transforms with Chameleon Hash Functions
We present two transforms to acquire chosen ciphertext security from tag based techniques. The first one requires the separability of underlying primitives. By separability, info...
Rui Zhang 0002
CCS
2009
ACM
14 years 8 months ago
A generic construction of useful client puzzles
Denial of Service (DoS) attacks are serious threats for network societies. For dealing with DoS attacks, Jakobsson and Juels first proposed the notion of useful client puzzles (UC...
Rui Zhang 0002, Goichiro Hanaoka, Hideki Imai
CISC
2009
Springer
199views Cryptology» more  CISC 2009»
13 years 5 months ago
Cryptanalysis of Certificateless Signcryption Schemes and an Efficient Construction without Pairing
Abstract. Certificateless cryptography introduced by Al-Riyami and Paterson eliminates the key escrow problem inherent in identity based cryptosystems. Even though building practic...
S. Sharmila Deva Selvi, S. Sree Vivek, C. Pandu Ra...