/* function invertFpPoint : This function return the inverse of ec point
* param m : miracl pointer
* param p1 : ellitic curve point
* return : the inverse point
*/
JNIEXPORT jlong JNICALL Java_edu_biu_scapi_primitives_dlog_miracl_MiraclDlogECFp_invertFpPoint
(JNIEnv *env, jobject obj, jlong m, jlong p1){
/* convert the accepted parameters to MIRACL parameters*/
miracl* mip = (miracl*)m;
big x, y;
epoint* p2;
x= mirvar(mip, 0);
y= mirvar(mip, 0);
//init the result point and copy the values to it
p2 = epoint_init(mip);
epoint_get(mip, (epoint*)p1, x, y);
epoint_set(mip, x,y,0, p2);
mirkill(x);
mirkill(y);
//inverse the point
epoint_negate(mip, p2);
return (jlong)p2; // return the inverse
}
ECn operator-(const ECn& e)
{ ECn t=e; epoint_negate(t.p); return t;}
