and returns s. func (s *Scalar) Set(x *Scalar) *Scalar { *s = *x return s } // SetUniformBytes sets s = x mod l, where x is a 64-byte little-endian integer. // If x is not of the right length, SetUniformBytes returns nil and an error, // and the receiver is unchanged. // // SetUniformBytes can be used to set s to a uniformly distributed value given // 64 uniformly distributed random bytes. func (s *Scalar) SetUniformBytes(x []byte) (*Scalar, error) { if len(x) != 64 { return nil, errors.New("edwards25519:...