A lithographic printing plate precursor includes: a support; and an image-recording layer containing an infrared absorbing agent, a radical polymerization initiator, a polymerizable compound and an epoxy compound having a molecular weight of 1,000 or less. The method comprises the steps of obtaining information that uniquely identifies the elliptic curve and performing computations on the point to obtain the result of the cryptographic operation. The load stamp is guided with its stamp face resting flat on the asphalt surface for testing. The electrodes of one type are energized to act as a cathode and the electrodes of other type are energized to act as an anode.