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» New Security Results on Encrypted Key Exchange
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JOC
2010
124views more  JOC 2010»
15 years 4 months ago
A New and Improved Paradigm for Hybrid Encryption Secure Against Chosen-Ciphertext Attack
We present a new encryption scheme which is secure against adaptive chosenciphertext attack (or CCA2-secure) in the standard model (i.e. without the use of random oracle). Our sch...
Yvo Desmedt, Rosario Gennaro, Kaoru Kurosawa, Vict...
CRYPTO
2010
Springer
157views Cryptology» more  CRYPTO 2010»
15 years 7 months ago
Circular and Leakage Resilient Public-Key Encryption under Subgroup Indistinguishability - (or: Quadratic Residuosity Strikes Ba
The main results of this work are new public-key encryption schemes that, under the quadratic residuosity (QR) assumption (or Paillier's decisional composite residuosity (DCR...
Zvika Brakerski, Shafi Goldwasser
CRYPTO
2007
Springer
132views Cryptology» more  CRYPTO 2007»
16 years 4 days ago
Secure Hybrid Encryption from Weakened Key Encapsulation
We put forward a new paradigm for building hybrid encryption schemes from constrained chosen-ciphertext secure (CCCA) key-encapsulation mechanisms (KEMs) plus authenticated symmet...
Dennis Hofheinz, Eike Kiltz
ASIACRYPT
2009
Springer
16 years 17 days ago
Smooth Projective Hashing and Password-Based Authenticated Key Exchange from Lattices
Abstract. We describe a public-key encryption scheme based on lattices — specifically, based on the hardness of the learning with error (LWE) problem — that is secure against ...
Jonathan Katz, Vinod Vaikuntanathan
CTRSA
2006
Springer
140views Cryptology» more  CTRSA 2006»
15 years 9 months ago
Session Corruption Attack and Improvements on Encryption Based MT-Authenticators
Bellare, Canetti and Krawczyk proposed a security model (BCK-model) for authentication and key exchange protocols in 1998. The model not only reasonably captures the power of pract...
Xiaojian Tian, Duncan S. Wong