robotic toolbox is a Scripts software developed by Paolo Di Prodi. After our trial and test, the software is proved to be official, secure and free. Here is the official description for robotic toolbox:

Marydown Editor: A set of matlab scripts featuring:
forward kinematics by omogeneous transformations and DH transformations, inverse kinematics for euler and rpy wrist and antropomorphic manipulator, differential kinematics OperaTor and geometrical jacobian, Static force Analysis, trajectory planning in joint space. User can choose a 3th order interpolation with chosen or computed velocities or spline interpolation.