35 search results - page 3 / 7 » An Efficient Public Key Trace and Revoke Scheme Secure again... |
CRYPTO
2000
Springer
13 years 9 months ago
2000
Springer
We present a chosen-ciphertext attack against the public key cryptosystem called NTRU. This cryptosystem is based on polynomial algebra. Its security comes from the interaction of ...
JOC
2010
13 years 3 months ago
2010
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...
EUROCRYPT
2003
Springer
13 years 10 months ago
2003
Springer
Abstract. In this paper we present a simpler construction of a publickey encryption scheme that achieves adaptive chosen ciphertext security (CCA2), assuming the existence of trapd...
ICICS
2010
Springer
13 years 3 months ago
2010
Springer
Threshold public-key encryption (TPKE) allows a set of users to decrypt a ciphertext if a given threshold of authorized users cooperate. Existing TPKE schemes suffer from either lo...
ICALP
2005
Springer
13 years 10 months ago
2005
Springer
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 ...