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SCN
2010
Springer
145views Communications» more  SCN 2010»
13 years 7 months ago
Distributed Private-Key Generators for Identity-Based Cryptography
An identity-based encryption (IBE) scheme can greatly reduce the complexity of sending encrypted messages. However, an IBE scheme necessarily requires a private-key generator (PKG)...
Aniket Kate, Ian Goldberg
CRYPTO
2006
Springer
224views Cryptology» more  CRYPTO 2006»
14 years 9 days ago
Anonymous Hierarchical Identity-Based Encryption (Without Random Oracles)
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...
Xavier Boyen, Brent Waters
EUROCRYPT
2010
Springer
14 years 1 months ago
Public-Key Encryption in the Bounded-Retrieval Model
We construct the first public-key encryption scheme in the Bounded-Retrieval Model (BRM), providing security against various forms of adversarial “key leakage” attacks. In th...
Joël Alwen, Yevgeniy Dodis, Moni Naor, Gil Se...
ASIACRYPT
2005
Springer
14 years 2 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...
IEICET
2008
119views more  IEICET 2008»
13 years 8 months ago
Universally Composable Identity-Based Encryption
Abstract-- The identity-based encryption (IBE) is one of the most important primitives in cryptography, and various security notions of IBE (e.g., IND-ID-CCA2, NM-ID-CCA2, IND-sID-...
Ryo Nishimaki, Yoshifumi Manabe, Tatsuaki Okamoto