{TAIL ~ The signature verification apparatus} includes a signature verification unit which judges whether {HEAD ~ or not the first sub element} of the N sub elements included in the signature data indicates 0, and determines the signature data as unauthorized data when judging that it is not 0 
{ TAIL ~ The signature verification apparatus } includes a signature verification unit which judges whether { HEAD ~ or not the first sub element } of the N sub elements included in the signature data indicates 0 , and determines the signature data as unauthorized data when judging that it is not 0
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH