<SUP>*</SUP>In keeping with the theme of MATH237, Dr Yager will attach his digital signature to most emails sent in connection with MATH237. If you also have a digital signature, any email correspondence with Dr Yager will be encrypted.
Dr Yager is offering a $50 prize for the first MATH237 student to discover the private key to his digital signature. To do this, all you need to do is to find one of the two prime factors of his encoding modulus, and then follow the simple proceedure we will learn towards the end of the unit. Dr Yager's public exponent is 65537 and his encoding modulus is the following small number:
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For the actual page, you can explore:
http://rutherglen.ics.mq.edu.au/math237s107/
Dr Yager is offering a $50 prize for the first MATH237 student to discover the private key to his digital signature. To do this, all you need to do is to find one of the two prime factors of his encoding modulus, and then follow the simple proceedure we will learn towards the end of the unit. Dr Yager's public exponent is 65537 and his encoding modulus is the following small number:
23321680547237225443713525721224584148665866330023524154360369181729452176249 96103385626498674629326288055713436516501479310848653803934728265021726372294 29442459642645282778448888896437772603901327650651185497794346270444876304210 35208423337776242804927764218195414173345386511219439787886101490508289061116 32736609730760383212056016899799620199509047160706797135421083890287484948962 47636160505623651803170397909798289974867510937900033170267321525569657216937 03360898621986838871091236507919939781960611168013517457493751969193634213340 178321446168127058612602730007308362491141503782643973149471343893309705271619
To assist you in this task, Dr Yager is prepared to tell you that, to 6 significant figures, the smaller prime factor is 1.44702×10<SUP>308</SUP>. (That just leaves 304 digits for you to work out.) The prize must be claimed before the digital signature expires on 22 February 2008.
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For the actual page, you can explore:
http://rutherglen.ics.mq.edu.au/math237s107/