Sciweavers

233 search results - page 8 / 47
» CAPTCHA: Using Hard AI Problems for Security
Sort
View
ASIACRYPT
2006
Springer
15 years 1 months ago
On the Provable Security of an Efficient RSA-Based Pseudorandom Generator
Pseudorandom Generators (PRGs) based on the RSA inversion (one-wayness) problem have been extensively studied in the literature over the last 25 years. These generators have the a...
Ron Steinfeld, Josef Pieprzyk, Huaxiong Wang
AI
2003
Springer
15 years 2 months ago
Hybrid Randomised Neighbourhoods Improve Stochastic Local Search for DNA Code Design
Sets of DNA strands that satisfy combinatorial constraints play an important role in various approaches to biomolecular computation, nanostructure design, and molecular tagging. Th...
Dan C. Tulpan, Holger H. Hoos
FOCS
2003
IEEE
15 years 2 months ago
On Worst-Case to Average-Case Reductions for NP Problems
We show that if an NP-complete problem has a non-adaptive self-corrector with respect to a samplable distribution then coNP is contained in NP/poly and the polynomial hierarchy co...
Andrej Bogdanov, Luca Trevisan
DCC
2007
IEEE
15 years 9 months ago
Towards generating secure keys for braid cryptography
Abstract. Braid cryptosystem was proposed in CRYPTO 2000 as an alternate public-key cryptosystem. The security of this system is based upon the conjugacy problem in braid groups. S...
Ki Hyoung Ko, Jang-Won Lee, Tony Thomas
CORR
2007
Springer
127views Education» more  CORR 2007»
14 years 9 months ago
Using decision problems in public key cryptography
There are several public key establishment protocols as well as complete public key cryptosystems based on allegedly hard problems from combinatorial (semi)group theory known by no...
Vladimir Shpilrain, Gabriel Zapata