I have spent some time experimenting with prime number theory to generate novel forms of private key encryption. I am expanding my work into public key encryption which I shall publish here when complete. Post-quantum cryptography may be a serious problem in the future, one I am dedicating time to addressing. If you are working in this space I would be keen to talk: DM @rupwalker on X.

My progress:

private_key_v1 (May ‘24): encryption for 26 lower case characters + space
private_key_v2 (July ‘24): encryption for all unicode characters (supporting all punctuation and alphabets)

If anyone can solve the below private-key encrypted message (now using .v2) I will pay them $500.

43618060246784844110734854997087076224616133010561743730230338784900387022518517666303349526281886372178703831957786715466123467185385585217390760460677569800774015423642237194075064409129982522457253304107571742723236029628266085359231094062750183255220235818615198626447936680073199185111105022410779734035844544559239030340718415506192358032698121542851439036276406541880464421593099132071705045530591884196909466630134464678404022518517666303349537201825076112108923690714476330099250836324813791671243186198264143410012338913789755260037140130507163332614189750858218549042322474298860541841335361195680121020359207753096179039607913265114384642322474298860541827762556026949335032698121542851439033315067232339202042199085160962989251823437916972092032574732404953886420729375166788836822210044821559468038003854472446200809130796204418892450095989986406355661077623259288537037325214214009661524431049303715414844913646194709146454414609812820696667247080154166167024986300424254401557190865415515630143926533091528725624677827579510520024616133010561743728873058268027308438867578437729069008760628790726234646641094125274882829613393095412624029921865940156505532204564991261228624616133010561743764964381103061443961077623259288537037325214214009661536646573955573122251329881365381881648862098607430829647072956107916316920976153442583942044481784212067712312338913789755260030662200767541821164162351706727352032081175853363676037016741369265780028934752836976084736646573955573122232698121542851439030230338784900387028317807147488321741952306885167884050836324813791671238435716455087634912338913789755260030230338784900387014436529134013654242322474298860541867247080154166167017582952150401245517768035857247574431525924732824689339978080678807042448121763780045514014806696547706312049417349727969816343432976539938515240471637230397252846641094125274882818014814133042679631094062750183255208143683101238471621161237149430270954908166364410907033623540077083083544420089643118936048368542055840619249417349727969816330847284474388150037016741369265780029428309388566295136029628266085359235536071714495148846641094125274882829119836543822413643186198264143410010241298445496865828502890854334650664779297396215115030538811629644268540348248092499700224616133010561743763298627741444483855525112053898670025603246113742164536646573955573122223690714476330099247874985504250408830662200767541821126652053785871361652687161882254960209007407066521339830662200767541821148121763780045514036399795679778017033315067232339202030662200767541821147196345245813869570948754291092745022518517666303349539422829558268055734548958611314728057746116536054616838867578437729069016534144478272048428502890854334650606539624308570287842322474298860541831464230163875913026220191803229927538127243610343753442322474298860541848862098607430829653057329295947618037633687058753543055525112053898670033068288956544096832574732404953886446641094125274882824924605855305625231094062750183255208143683101238471649664128003764921554908166364410907026837137492717690539978080678807042450527851969047789740533331799346029144420089643118936025294773268998283061632874379827523744420089643118936040965193781987463228502890854334650626898832061666466838435716455087634910858244134984628837140130507163332670948754291092745030847284474388150024801216717408072628502890854334650662188125500366510460460677569800774032389648698107557536646573955573122257252559984464406449849211710611250435844544559239030316287366202476943245777370159992014612092135513960154821593099132071705050589546537996566033315067232339202027022221199564019431094062750183255245530591884196909468480971533141693027454083182205453548862098607430829639978080678807042450836324813791671238435716455087634921469709994174152451823437916972092014189750858218549042322474298860541831464230163875913030847284474388150039978080678807042438867578437729069037201825076112108940718415506192358016349060771425719554414609812820696625171384131100730441952306885167884044481784212067712324677827579510520030662200767541821106909791722262945644481784212067712355525112053898670021901571976815586531834397577568570845777370159992014653859358692281709954291220674923144020359207753096179061632874379827523744420089643118936043432976539938515231525924732824689325418162406895835641890612316219107710858244134984628834980820593956162172182645670068271022518517666303349526281886372178703835412682576597596264409129982522457245037035332606699021901571976815586527207304906410348353304107571742723236029628266085359230662200767541821114066361720320996450527851969047789709007407066521339831094062750183255263545406017239589031772703008619794529983560509105281831094062750183255241088582919885015830230338784900387030538811629644268539978080678807042449355655159021040051329881365381881642322474298860541817521257581452469250095989986406355613326026892935680842754336281501975964779297396215115020359207753096179018878538098325547841890612316219107748862098607430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