Leo Rosen (26 marse 1916 – 16 marse 1991) ko ganndo Ameriknaajo, gollodinooɗo e Frank Rowlett to nokku toppitiiɗo ko faati e humpitooji Signals (S.I.S.) hade wolde adunaare ɗiɗmere fuɗɗaade e sifiruuji Japon. Rowlett yiyti feere ngam janngude mesasuuji cifaaɗi e masiŋ PURPLE Japon. Rosen ƴettii no moƴƴi mbaadi masiŋ sifir oo, hay so tawii noon mbaadi ndi PURPLE huutortoo, woni jolngo telefoŋ, ina seerti no feewi e masiŋaaji goɗɗi (ko wayi no masiŋaaji rotor e masiŋaaji pinwheel).[ɓeydagol ciimtol(ji) ina haani].

Leo Rosen
ɓii aadama
Jinsugorko Taƴto
Ɓii-leydiyankaakuDowlaaji Dentuɗi Taƴto
InndeLeo Taƴto
Innde ɓesnguRosen Taƴto
Ɗuubi daygo20. century Taƴto
Sana'ajimathematician Taƴto

Rosen jibini haa Woodbine, New Jersey, to Joseph Rosen e Catherine Shubina, ɓe ƴellitaama diga laamu Rusiya.

Fedde ɓaawoji feere feere feere feere Rosen naftiri ngam waɗugo analogum masin PURPLE
Fragment masinji Japonji PURPLE je ɓe keɓii caggal konu. Japon'en naftiri bee sakkitiiji 7 dow dow dow dow kala nder cipher; Rosen naftiri bee sikkitiiji 6 dow dow dow woore. Nder fannu crittograafik, walaa feere.

Rosen waɗi replica PURPLE je ɗon huutoro (ko nde masin wondi ɓaawo duuɓi) ngam huutoreeje steping switches je ɗon mari nannguki wakkati ɗon nder US. masin man huutoroo ngam huutoroode kubaruuji diplomatiji Japon, wakkati feere ngam mawɓe Japon ɗon mari hoore maɓɓe. Rosen kadi hokki talantaandi mum nder nder nder nder konu e caggal konu e Arlington Hall, caggal nde S.I.S. laati ardiiɗo ardiiɓe ardiiɓe, ɓaawo maajum AFSA, e ɓaawo maajum ardiiɗo Ardiiɓe ardi ardiiɓe.   [<span title="This claim needs additional references to reliable sources. (June 2021)">additional citation(s) needed</span>]

E hitaande 2010, o waɗii ko o waɗii haa nder NSA Hall of Honor ngam darnde maako nder duniyaru cryptology. O darani diga ɓiɗɗo maako Lawrence Rosen e ɓikkoy maako Michael e Christine Rosen.

Ndaare kadi

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  • John Tiltman

Firooji

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