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ISPEC
2005
Springer
13 years 10 months ago
Token-Controlled Public Key Encryption
Token-controlled public key encryption (TCPKE) schemes, introduced in [1], offer many possibilities of application in financial or legal scenarios. Roughly speaking, in a TCPKE s...
Joonsang Baek, Reihaneh Safavi-Naini, Willy Susilo
ACISP
2007
Springer
13 years 10 months ago
TCHo: A Hardware-Oriented Trapdoor Cipher
This paper improves the Finiasz-Vaudenay construction of TCHo, a hardware-oriented public-key cryptosystem, whose security relies on the hardness of finding a low-weight multiple ...
Jean-Philippe Aumasson, Matthieu Finiasz, Willi Me...
EUROCRYPT
2008
Springer
13 years 6 months ago
Towards Key-Dependent Message Security in the Standard Model
Standard security notions for encryption schemes do not guarantee any security if the encrypted messages depend on the secret key. Yet it is exactly the stronger notion of security...
Dennis Hofheinz, Dominique Unruh
EUROCRYPT
2010
Springer
13 years 9 months ago
Bounded Key-Dependent Message Security
We construct the first public-key encryption scheme that is proven secure (in the standard model, under standard assumptions) even when the attacker gets access to encryptions of ...
Boaz Barak, Iftach Haitner, Dennis Hofheinz, Yuval...
TCC
2009
Springer
153views Cryptology» more  TCC 2009»
14 years 5 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