release/src/router/libsodium/src/libsodium/crypto_sign/ed25519/ref10/ge_tobytes.c

   1 #include "ge.h"
   2
   3 void ge_tobytes(unsigned char *s,const ge_p2 *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 }