286 search results - page 48 / 58 » Key-Privacy in Public-Key Encryption |
104
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PKC
2010
Springer
15 years 3 months ago
2010
Springer
Abstract. In this paper, we fully break the Algebraic Surface Cryptosystem (ASC for short) proposed at PKC’2009 [3]. This system is based on an unusual problem in multivariate cr...
ITNG
2006
IEEE
15 years 5 months ago
2006
IEEE
Informally, Privacy Homomorphism (PH) refers to encryption schemes with a homomorphic property allowing to obtain Ek(a + b) or Ek(a × b) from ciphertexts Ek(a) and Ek(b) without ...
108
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COMSUR
2011
13 years 11 months ago
2011
Abstract—Exchanging cryptographic keys to encrypt the media stream in the Session Initiation Protocol (SIP) has proven difficult. The challenge is to effectively exchange keys w...
131
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CIA
1998
Springer
15 years 3 months ago
1998
Springer
The paradigm of mobile agents offers a powerful and flexible ity to develop distributed applications on a high-level of abstraction. One of the most interesting tasks for mobile ag...
95
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CTRSA
2006
Springer
15 years 3 months ago
2006
Springer
Abstract. In this paper we present a general framework for constructing efficient multicast cryptosystems with provable security and show that a line of previous work on multicast ...