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» On the Security of ''Golden'' Cryptography
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APPROX
2004
Springer
121views Algorithms» more  APPROX 2004»
15 years 3 months ago
Small Pseudo-random Families of Matrices: Derandomizing Approximate Quantum Encryption
A quantum encryption scheme (also called private quantum channel, or state randomization protocol) is a one-time pad for quantum messages. If two parties share a classical random s...
Andris Ambainis, Adam Smith
EUROCRYPT
2003
Springer
15 years 2 months ago
Resettable Zero-Knowledge in the Weak Public-Key Model
A new public-key model for resettable zero-knowledge (rZK) protocols, which is an extension and generalization of the upper-bounded public-key (UPK) model introduced by Micali and ...
Yunlei Zhao, Xiaotie Deng, Chan H. Lee, Hong Zhu
FOCS
2002
IEEE
15 years 2 months ago
On the (non)Universality of the One-Time Pad
Randomization is vital in cryptography: secret keys should be randomly generated and most cryptographic primitives (e.g., encryption) must be probabilistic. As a bstraction, it is...
Yevgeniy Dodis, Joel Spencer
ICALP
2010
Springer
15 years 2 months ago
Concurrent Knowledge Extraction in the Public-Key Model
Knowledge extraction is a fundamental notion, modeling machine possession of values (witnesses) in a computational complexity sense and enabling one to argue about the internal st...
Andrew C. Yao, Moti Yung, Yunlei Zhao
FC
2010
Springer
181views Cryptology» more  FC 2010»
15 years 1 months ago
Design and Implementation of a Key-Lifecycle Management System
Key management is the Achilles’ heel of cryptography. This work presents a novel Key-Lifecycle Management System (KLMS), which addresses two issues that have not been addressed ...
Mathias Björkqvist, Christian Cachin, Robert ...