The state of Connecticut does hereby pledge to and agree with the holders of any obligations issued under this chapter, and with those parties who may enter into contracts with the authority pursuant to the provisions of this chapter, that the state will not limit or alter the rights hereby vested in the authority until such obligations, together with the interest thereon, are fully met and discharged and such contracts are fully performed on the part of the authority, provided nothing herein contained shall preclude such limitation or alteration if and when adequate provision shall be made by law for the protection of the holders of such obligations of the authority or those entering into such contracts with the authority. The authority as agent for the state is authorized to include this pledge and undertaking for the state in such obligations or contracts.