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EUROCRYPT
2004
Springer
14 years 26 days ago
Chosen-Ciphertext Security from Identity-Based Encryption
Abstract. We propose a simple and efficient construction of a CCAsecure public-key encryption scheme from any CPA-secure identity-based encryption (IBE) scheme. Our construction re...
Ran Canetti, Shai Halevi, Jonathan Katz
ASIACRYPT
2000
Springer
13 years 11 months ago
Security of Signed ElGamal Encryption
Assuming a cryptographically strong cyclic group G of prime order q and a random hash function H, we show that ElGamal encryption with an added Schnorr signature is secure against ...
Claus-Peter Schnorr, Markus Jakobsson
ICALP
2005
Springer
14 years 1 months 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
ACNS
2008
Springer
252views Cryptology» more  ACNS 2008»
14 years 1 months ago
Generic Constructions of Stateful Public Key Encryption and Their Applications
We present generic constructions of stateful public key encryption (StPE). We build several new StPE schemes and explain existing ones using our generic constructions. Of the new ...
Joonsang Baek, Jianying Zhou, Feng Bao
AAECC
2006
Springer
135views Algorithms» more  AAECC 2006»
14 years 1 months ago
Applying Fujisaki-Okamoto to Identity-Based Encryption
The Fujisaki-Okamoto (FO) conversion is widely known to be able to generically convert a weak public key encryption scheme, say one-way against chosen plaintext attacks (OW-CPA), t...
Peng Yang 0002, Takashi Kitagawa, Goichiro Hanaoka...