next up previous
Next: On the Security of Up: Back at Weizmann (1998-2003) Previous: Session-Key Generation using Human

Candidate One-Way Functions Based on Expander Graphs

This work suggests a candidate one-way function using combinatorial constructs such as expander graphs. These graphs are used to determine a sequence of small overlapping subsets of input bits, to which a hard-wired random predicate is applied. The conjectured difficulty of inverting the suggested function does not seem to follow from any well-known assumption, but is rather proposed as an open problem.


Comments: Authored by O. Goldreich. Appeared in

Cryptology ePrint Archive, Report 2000/063, 2000.
ECCC, TR00-090, 2000.



Oded Goldreich
2003-07-30