{HEAD ~ The present invention} relates to an encryption technology as an information security technology, and in particular to a signature generation apparatus and a signature verification apparatus which perform processing based on {TAIL ~ a digital signature} 
{ HEAD ~ The present invention } relates to an encryption technology as an information security technology , and in particular to a signature generation apparatus and a signature verification apparatus which perform processing based on { TAIL ~ a digital signature }
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 OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL