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ASIACRYPT
2005
Springer
14 years 1 months ago
Identity-Based Hierarchical Strongly Key-Insulated Encryption and Its Application
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...
Yumiko Hanaoka, Goichiro Hanaoka, Junji Shikata, H...
EUROCRYPT
2003
Springer
14 years 20 days ago
A Simpler Construction of CCA2-Secure Public-Key Encryption under General Assumptions
Abstract. In this paper we present a simpler construction of a publickey encryption scheme that achieves adaptive chosen ciphertext security (CCA2), assuming the existence of trapd...
Yehuda Lindell
ICALP
2005
Springer
14 years 29 days ago
On Steganographic Chosen Covertext Security
At TCC 2005, Backes and Cachin proposed a new and very strong notion of security for public key steganography: secrecy against adaptive chosen covertext attack (SS-CCA); and posed ...
Nicholas Hopper
ISPEC
2010
Springer
13 years 9 months ago
Certificateless KEM and Hybrid Signcryption Schemes Revisited
Often authentication and confidentiality are required as simultaneous key requirements in many cryptographic applications. The cryptographic primitive called signcryption effective...
S. Sharmila Deva Selvi, S. Sree Vivek, C. Pandu Ra...
SYNASC
2007
IEEE
142views Algorithms» more  SYNASC 2007»
14 years 1 months ago
An Extension of the RSA Trapdoor in a KEM/DEM Framework
A trapdoor based on an extension of the RSA trapdoor is proposed. The same function as in the RSA cryptosystem is used, i.e. x modn, but there is no restriction for the exponent t...
Bogdan Groza