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» Token-Controlled Public Key Encryption
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SCN
2010
Springer
144views Communications» more  SCN 2010»
13 years 7 months ago
Generic Constructions of Parallel Key-Insulated Encryption
Exposure of a secret key is a significant threat in practice. As a notion of security against key exposure, Dodis et al. advocated key-insulated security, and proposed concrete k...
Goichiro Hanaoka, Jian Weng
CRYPTO
1993
Springer
137views Cryptology» more  CRYPTO 1993»
14 years 22 days ago
Broadcast Encryption
A broadcast encryption scheme allows the sender to securely distribute data to a dynamically changing set of users over an insecure channel. One of the most challenging settings fo...
Amos Fiat, Moni Naor
TCC
2009
Springer
153views Cryptology» more  TCC 2009»
14 years 9 months ago
On the (Im)Possibility of Key Dependent Encryption
We study the possibility of constructing encryption schemes secure under messages that are chosen depending on the key k of the encryption scheme itself. We give the following sep...
Iftach Haitner, Thomas Holenstein
TCC
2010
Springer
170views Cryptology» more  TCC 2010»
14 years 5 months ago
Public-Key Cryptographic Primitives Provably as Secure as Subset Sum
Abstract. We propose a semantically-secure public-key encryption scheme whose security is polynomialtime equivalent to the hardness of solving random instances of the subset sum pr...
Vadim Lyubashevsky, Adriana Palacio, Gil Segev
CCS
2008
ACM
13 years 10 months ago
Identity-based encryption with efficient revocation
Identity-based encryption (IBE) is an exciting alternative to public-key encryption, as IBE eliminates the need for a Public Key Infrastructure (PKI). Any setting, PKI- or identit...
Alexandra Boldyreva, Vipul Goyal, Virendra Kumar