func (e *G2) String() string {
C.g2_make_affine(&e.p)
c := newConvertContext()
xa := c.doublesFP2ToInt(new(big.Int), C.g2_x(&e.p), 1)
xb := c.doublesFP2ToInt(new(big.Int), C.g2_x(&e.p), 0)
ya := c.doublesFP2ToInt(new(big.Int), C.g2_y(&e.p), 1)
yb := c.doublesFP2ToInt(new(big.Int), C.g2_y(&e.p), 0)
return "bn256.G2((" + xa.String() + ", " + xb.String() + "), (" + ya.String() + ", " + yb.String() + "))"
}
func (e *G2) ScalarMult(base *G2, k *big.Int) *G2 {
words, bitLen := powerToWords(k)
if bitLen == 0 {
C.g2_set(&e.p, &base.p)
} else {
C.g2_make_affine(&base.p)
C.g2_scalar_mult(&e.p, &base.p, (*C.ulonglong)(unsafe.Pointer(&words[0])), C.unsigned(bitLen))
}
return e
}
func (e *G2) Marshal() []byte {
out := make([]byte, numBytes*4)
C.g2_make_affine(&e.p)
c := newConvertContext()
c.doublesFP2ToBytes(out, C.g2_x(&e.p))
c.doublesFP2ToBytes(out[2*numBytes:], C.g2_y(&e.p))
return out
}