HELP! * GREY=local LOCAL HTML version of Foils prepared March 22,1995

Foil 20 A WebWork Approach to Breaking Bank of England

From Overview of WebWindows March 95 CRPC Annual Meeting Houston -- March 21-24,1995. by Geoffrey C. Fox * See also color IMAGE

RSA155 requires about 300 teraops hours to solve with NFS
RSA129 needed about an order of magnitude less time. Can be done today faster if use Number Field Sieve
We have roughly one to five million independent calculations which form the rows of matrix (after clever graph theory manipulates and combines)
Set of master servers publish problem to solved with suitable demos, description of algorithm and full marketing attention.
  • Clients download software, run tests and certify with test case.
  • Clients pick the set of a's they hope to do in a week
  • PC's pick the smaller numbers needing less memory and CPU power
  • Cray's pick the largest hardest numbers
Clients return results -- not so easy except by email and cut and paste
Best done as a set of cooperating servers where server performing factorization publishs it solution as a file on the WWW.
Cooperating servers also better for computer administrators as can control set of clients at a given site
Initially use humans but replace by agents when software ready



Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

If you have any comments about this server, send e-mail to webmaster@npac.syr.edu.

Page produced by wwwfoil on Mon Feb 17 1997