163 search results - page 10 / 33 » Relaxing Chosen-Ciphertext Security |
146
click to vote
ASIACRYPT
2000
Springer
15 years 8 months ago
2000
Springer
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 ...
118
click to vote
PKC
2005
Springer
15 years 10 months ago
2005
Springer
Abstract. We define and discuss symmetric subgroup membership problems and their properties, including a relation to the Decision DiffieHellman problem. We modify the Cramer-Shoup...
142
click to vote
PKC
2009
Springer
16 years 5 months ago
2009
Springer
TCHo is a public key encryption scheme based on a stream cipher component, which is particular suitable for low cost devices like RFIDs. In its basic version, TCHo offers no IND-CC...
129
click to vote
CRYPTO
2003
Springer
15 years 9 months ago
2003
Springer
Abstract. In this paper, we reconsider the notion of plaintext awareness. We present a new model for plaintext-aware encryption that is both natural and useful. We achieve plaintex...
117
click to vote
CCS
2007
ACM
15 years 10 months ago
2007
ACM
In a proxy re-encryption (PRE) scheme, a proxy is given special information that allows it to translate a ciphertext under one key into a ciphertext of the same message under a di...