1 #include "ge.h"
2 
ge_p3_tobytes(unsigned char * s,const ge_p3 * h)3 void ge_p3_tobytes(unsigned char *s,const ge_p3 *h)
4 {
5   fe recip;
6   fe x;
7   fe y;
8 
9   fe_invert(recip,h->Z);
10   fe_mul(x,h->X,recip);
11   fe_mul(y,h->Y,recip);
12   fe_tobytes(s,y);
13   s[31] ^= fe_isnegative(x) << 7;
14 }
15