pqc/external/libtompoly-0.04/pb_rawsize.c

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2014-04-14 20:22:07 +00:00
/* LibTomPoly, Polynomial Basis Math -- Tom St Denis
*
* LibTomPoly is a public domain library that provides
* polynomial basis arithmetic support. It relies on
* LibTomMath for large integer support.
*
* This library is free for all purposes without any
* express guarantee that it works.
*
* Tom St Denis, tomstdenis@iahu.ca, http://poly.libtomcrypt.org
*/
#include <tompoly.h>
int pb_rawsize(pb_poly *a)
{
int x, y;
/* 2 bytes for # of coefficients */
y = 2;
/* characteristic */
y += 2 + mp_signed_bin_size(&(a->characteristic));
/* all of the terms */
for (x = 0; x < a->used; x++) {
y += 2 + mp_signed_bin_size(&(a->terms[x]));
}
return y;
}