71 search results - page 7 / 15 » Securing Threshold Cryptosystems against Chosen Ciphertext A... |
EUROCRYPT
2004
Springer
14 years 12 days ago
2004
Springer
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...
TCC
2010
Springer
14 years 3 months ago
2010
Springer
We present a variant of Regev’s cryptosystem first presented in [Reg05], but with a new choice of parameters. By a recent classical reduction by Peikert we prove the scheme sema...
TCC
2009
Springer
14 years 7 months ago
2009
Springer
We initiate the study of one-wayness under correlated products. We are interested in identifying necessary and sufficient conditions for a function f and a distribution on inputs ...
JSS
2007
13 years 6 months ago
2007
This paper reports security problems with improper implementations of an improved version of FEA-M (fast encryption algorithm for multimedia). It is found that an implementation-d...
PROVSEC
2009
Springer
14 years 1 months ago
2009
Springer
Signcryption is a cryptographic primitive that provides authentication and confidentiality simultaneously in a single logical step. It is often required that multiple senders have...