Function monero::cryptonote::subaddress::get_public_keys

pub fn get_public_keys(keys: &ViewPair, index: Index) -> (PublicKey, PublicKey)

Compute the view public key and spend public key (V', S') at index i from view pair (v, S) where V' = v*S' and S' = mG + S

If index is equal to zero return (v, S) as (V', S')