ParagonIE_Sodium_Core32_Curve25519::ge_msub() public WP 1.0
{} It's a method of the class: ParagonIE_Sodium_Core32_Curve25519{}
No Hooks.
Return
ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1
. Null. Nothing.
Usage
$result = ParagonIE_Sodium_Core32_Curve25519::ge_msub(;
Code of ParagonIE_Sodium_Core32_Curve25519::ge_msub() ParagonIE Sodium Core32 Curve25519::ge msub WP 5.7.1
public static function ge_msub(
ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $R,
ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p,
ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $q
) {
$r = clone $R;
$r->X = self::fe_add($p->Y, $p->X);
$r->Y = self::fe_sub($p->Y, $p->X);
$r->Z = self::fe_mul($r->X, $q->yminusx);
$r->Y = self::fe_mul($r->Y, $q->yplusx);
$r->T = self::fe_mul($q->xy2d, $p->T);
$t0 = self::fe_add($p->Z, $p->Z);
$r->X = self::fe_sub($r->Z, $r->Y);
$r->Y = self::fe_add($r->Z, $r->Y);
$r->Z = self::fe_sub($t0, $r->T);
$r->T = self::fe_add($t0, $r->T);
return $r;
}