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ASIACRYPT
2005
Springer
13 years 11 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...
JOC
2006
69views more  JOC 2006»
13 years 5 months ago
Characterization of Security Notions for Probabilistic Private-Key Encryption
The development of precise definitions of security for encryption, as well as a detailed understanding of their relationships, has been a major area of research in modern cryptogr...
Jonathan Katz, Moti Yung
JOC
2008
97views more  JOC 2008»
13 years 5 months ago
Tag-KEM/DEM: A New Framework for Hybrid Encryption
This paper presents a novel framework for the generic construction of hybrid encryption schemes which produces more efficient schemes than the ones known before. A previous framew...
Masayuki Abe, Rosario Gennaro, Kaoru Kurosawa
PKC
2004
Springer
106views Cryptology» more  PKC 2004»
13 years 11 months ago
On the Security of Multiple Encryption or CCA-security+CCA-security=CCA-security?
In a practical system, a message is often encrypted more than once by different encryptions, here called multiple encryption, to enhance its security. Additionally, new features ...
Rui Zhang 0002, Goichiro Hanaoka, Junji Shikata, H...
IACR
2011
88views more  IACR 2011»
12 years 5 months ago
Storing Secrets on Continually Leaky Devices
We consider the question of how to store a value secretly on devices that continually leak information about their internal state to an external attacker. If the secret value is s...
Yevgeniy Dodis, Allison B. Lewko, Brent Waters, Da...