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» Provably Secure Timed-Release Public Key Encryption
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TCS
2008
13 years 7 months ago
New constructions for provably-secure time-bound hierarchical key assignment schemes
A time-bound hierarchical key assignment scheme is a method to assign time-dependent encryption keys to a set of classes in a partially ordered hierarchy, in such a way that each ...
Alfredo De Santis, Anna Lisa Ferrara, Barbara Masu...
ACNS
2008
Springer
252views Cryptology» more  ACNS 2008»
14 years 1 months ago
Generic Constructions of Stateful Public Key Encryption and Their Applications
We present generic constructions of stateful public key encryption (StPE). We build several new StPE schemes and explain existing ones using our generic constructions. Of the new ...
Joonsang Baek, Jianying Zhou, Feng Bao
CRYPTO
2011
Springer
245views Cryptology» more  CRYPTO 2011»
12 years 7 months ago
Fully Homomorphic Encryption from Ring-LWE and Security for Key Dependent Messages
We present a somewhat homomorphic encryption scheme that is both very simple to describe and analyze, and whose security (quantumly) reduces to the worst-case hardness of problems ...
Zvika Brakerski, Vinod Vaikuntanathan
AMC
2005
138views more  AMC 2005»
13 years 7 months ago
Practical convertible authenticated encryption schemes using self-certified public keys
A convertible authenticated encryption scheme allows a designated receiver to recover and verify a message simultaneously, during which the recipient can prove the dishonesty of t...
Jiqiang Lv, Xinmei Wang, Kwangjo Kim
CTRSA
2003
Springer
116views Cryptology» more  CTRSA 2003»
14 years 21 days ago
Intrusion-Resilient Public-Key Encryption
Exposure of secret keys seems to be inevitable, and may in practice represent the most likely point of failure in a cryptographic system. Recently, the notion of intrusion-resilien...
Yevgeniy Dodis, Matthew K. Franklin, Jonathan Katz...