Just to confirm: my database is a database of elliptic curves defined over Q and conductor up to some bound, currently 130,000.
John Cremona On Jan 22, 2:01 am, Alex Ghitza <[email protected]> wrote: > On Thu, 21 Jan 2010 16:36:47 -0800, William Stein <[email protected]> wrote: > > Aren't those curves owned by some company though, and one can't use > > them without paying license fees? I can't believe I just wrote that > > sentence. > > There's some info at > > http://en.wikipedia.org/wiki/ECC_patents > > It doesn't seem to indicate that the curves themselves are under patent, > and it would seem wrong for a government institution such as NIST to > recommend curves for which license fees must be paid. (Of course just > because it seems wrong doesn't mean that it's not the case.) > > The ECC algorithms themselves are a more contentious matter. RSA > thinks that the original algorithms due to Koblitz-Miller are not under > patent, but that certain implementation techniques and newer algorithms > are, see > > http://www.rsa.com/rsalabs/node.asp?id=2325 > > Best, > Alex > > -- > Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne > -- Australia --http://www.ms.unimelb.edu.au/~aghitza/ -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
