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» New Security Results on Encrypted Key Exchange
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DRM
2003
Springer
14 years 23 days ago
Breaking and repairing optimistic fair exchange from PODC 2003
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
Yevgeniy Dodis, Leonid Reyzin
SCN
2010
Springer
144views Communications» more  SCN 2010»
13 years 6 months ago
Generic Constructions of Parallel Key-Insulated Encryption
Exposure of a secret key is a significant threat in practice. As a notion of security against key exposure, Dodis et al. advocated key-insulated security, and proposed concrete k...
Goichiro Hanaoka, Jian Weng
AFRICACRYPT
2008
Springer
14 years 1 months ago
A Brief History of Provably-Secure Public-Key Encryption
Public-key encryption schemes are a useful and interesting field of cryptographic study. The ultimate goal for the cryptographer in the field of public-key encryption would be th...
Alexander W. Dent
TCC
2009
Springer
153views Cryptology» more  TCC 2009»
14 years 8 months ago
On the (Im)Possibility of Key Dependent Encryption
We study the possibility of constructing encryption schemes secure under messages that are chosen depending on the key k of the encryption scheme itself. We give the following sep...
Iftach Haitner, Thomas Holenstein
PKC
2012
Springer
212views Cryptology» more  PKC 2012»
11 years 10 months ago
Public-Key Cryptography from New Multivariate Quadratic Assumptions
In this work, we study a new multivariate quadratic (MQ) assumption that can be used to construct public-key encryption schemes. In particular, we research in the following two di...
Yun-Ju Huang, Feng-Hao Liu, Bo-Yin Yang