pub fn double_scalar_mul<const LIMBS: usize>(
k1: &FieldElement<LIMBS>,
g: &JacobianPoint<LIMBS>,
k2: &FieldElement<LIMBS>,
q: &JacobianPoint<LIMBS>,
params: &CurveParams<LIMBS>,
) -> JacobianPoint<LIMBS>Expand description
Compute k1G + k2Q (used in ECDSA verify). Not constant-time in the public values (signature verification is public).