Hi Martin, One more doubt.
In the above example, i have given 8 input and 8 output to the sbox. Is it possible to give 8 input and 6 output to the sbox. Eg: P= PolynomialRing(GF(2),14,"y0, y1, y2, y3, y4, y5, x0, x1, x2, x3, x4, x5, x6, x7",order='lex'); Above code is not tested. but for 6 by 4 i tested. its showing some error! Please help me out from this! Thanks & Regards, Sajan.S On May 26, 4:42 pm, "Sajan.S" <ammasa...@gmail.com> wrote: > Thanks alot for the hint. > > It worked for me! > > On May 26, 11:26 am, Martin Albrecht <m...@informatik.uni-bremen.de> > wrote: > > > > #F=S.polynomials(); > > > s=S.solutions(); > > > > P= PolynomialRing(GF(2),16,"y0, y1, y2, y3, y4, y5, y6, y7, x0, x1, > > > x2, x3, x4, x5, x6, x7",order='lex'); > > > P.inject_variables(); > > > > p=S.polynomials([x0, x1, x2, x3, x4, x5, x6, x7],[y0, y1, y2, y3, y4, > > > y5, y6, y7], groebner=True); > > > Ah, got it: your list p is empty. This is because your S-Box just doesn't > > give > > rise polynomials of degree 2 (the default choice). Just choose a higher > > degree. cf. the documentation of "S.polynomials?" for details. > > > Cheers, > > Martin > > -- > > name: Martin Albrecht > > _pgp:http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99 > > _otr: 47F43D1A 5D68C36F 468BAEBA 640E8856 D7951CCF > > _www:http://www.informatik.uni-bremen.de/~malb > > _jab: martinralbre...@jabber.ccc.de --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
