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CRYPTO
2006
Springer
224views Cryptology» more  CRYPTO 2006»
15 years 1 months 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
CORR
2007
Springer
122views Education» more  CORR 2007»
14 years 9 months ago
Practical Identity-Based Encryption (IBE) in Multiple PKG Environments and Its Applications
Abstract. Identity-based encryption (IBE) schemes are usually used in multiplePKG environments — on the one hand, each administrative domain (e.g., a relatively small and close o...
Shengbao Wang
ASIACRYPT
2005
Springer
15 years 3 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»
14 years 9 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
ASIACRYPT
2007
Springer
15 years 3 months ago
Blind Identity-Based Encryption and Simulatable Oblivious Transfer
An extended abstract of this paper appears in Kaoru Kurosawa (Ed.): Advances in Cryptology ASIACRYPT 2007, volume 4833 of Lecture Notes in Computer Science, pages 265–282, Spring...
Matthew Green, Susan Hohenberger