The apparatus may be an N-bit DAC including parallel stages associated with M most significant bits, and stages associated with least significant bits. A system for cryptographic suite management has a cryptographic suite management unit comprising a series of APIs enabling diverse applications to call cryptographic functions. The engaging portion is peeled away from a base to which the anchor portion is attached and is wrapped around the objects to be secured. In an incident surface of the illumination lens device, a plurality of convex lens tiers and a plurality of concave lens tiers are alternately made smoothly to form a multi-tiered lens surface, and an output surface thereof is made into a gentle cylindrical configuration to form a rod-like lens surface. The rigid electrode has in the central area thereof an at least essentially circular-cylindrical projection, wherein the diaphragm rests against this projection, for example by a nipple attached to the resonator attachment.