The signature verification apparatus includes a signature verification unit which judges whether {HEAD ~ or not the first sub element} of {TAIL ~ 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 
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The signature verification apparatus includes a signature verification unit which judges whether { HEAD ~ or not the first sub element } of { TAIL ~ 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
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH