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| | =Enigma Articles= | | =Enigma Articles= |
| | *[http://en.wikipedia.org/wiki/Enigma_machine Wikipedia article: Enigma machine] | | *[http://en.wikipedia.org/wiki/Enigma_machine Wikipedia article: Enigma machine] |
| | + | *[http://www.cryptomuseum.com/crypto/enigma/ Enigma from the Crypto Museum] |
| | | | |
| | = 8 bit Enigma machine = | | = 8 bit Enigma machine = |
| − | *[[Enigma/Example C-program 8 bit|8 bit enigma for crypting/decrypting files]] | + | *[[Enigma/primer|Enigma Primer]] |
| − | == Number of possible keys when using three wheels== | + | ==Programs and files== |
| − | In the example below there is a caculation of possible keys that is
| + | There are three C-programs and four file in this project. All singlethreaded C programs. |
| − | *Three whells of 8 bit each diffently coded (fx. wheel[0]=67,wheel[1]=234 .. wheel[67]=165 .. ) | + | *[[Enigma/makewheel.c|makewheel.c]] which will make Random 8 bit Enigma Wheels |
| − | *An 8 bit Rotor-Reflector which is symmetricaly coded. (Fx. rr[0]=67 then rr[67]=0, rr[87]=167 then rr[167]=87 etc. ) | + | *[[Enigma/wheels.h|wheels.h]] is an example of Random wheels made by [[Enigma/makewheel.c|makewheel.c]] |
| − | *When the encryption/decryption starts each wheel can be in 1 of 256 positions. Called the notch position | + | *[[Enigma/enigma8.|enigma8.c]] whild will Crypt and Decrypt plainfiles. |
| − | <source lang=cli>
| + | *[[Enigma/enigma8crack.c|enigma8crack.c]] is a singlethreaded attempt to break a crypted file with a known Crib<ref>A Crib is a known plaintext message in the crypted message. You can Brute-force the crypted message until you get a match on the Crib</ref> |
| − | heth@MachoGPU:~/enigma$ <input>bc</input>
| + | =Network= |
| − | bc 1.06.95
| + | *clusterh: 83.90.239.180 |
| − | Copyright 1991-1994, 1997, 1998, 2000, 2004, 2006 Free Software Foundation, Inc.
| + | =Footnotes= |
| − | This is free software with ABSOLUTELY NO WARRANTY.
| + | <references/> |
| − | For details type `warranty'.
| |
| − | <input>/* Define the Factorial function */ | |
| − | define frac(x) {
| |
| − | if (x>1) {
| |
| − | return (x * f (x-1))
| |
| − | }
| |
| − | return (1)
| |
| − | | |
| − | }
| |
| − | | |
| − | /* Number of possible alterations of a 8 bit wheel */
| |
| − | wheel=frac(256)
| |
| − | print wheel</input>
| |
| − | 85781777534284265411908227168123262515778152027948561985965565037726\
| |
| − | 94525531475893774402913604514084503758853423365843061571968346936964\
| |
| − | 75322289288497426025679637332563368786442675207626794560187968867971\
| |
| − | 52114330770207752664645146470918732610083287632570281898077367178145\
| |
| − | 41702505230186084953190681382574810702528175594594769870346657127381\
| |
| − | 39286205234756808218860701203611083152093501947437109101726968262861\
| |
| − | 60626366243502284094419140842461593600000000000000000000000000000000\
| |
| − | 0000000000000000000000000000000
| |
| − | | |
| − | <input> /* Number of installed wheels in the Enigma engine*/
| |
| − | numberofwheels=3
| |
| − | | |
| − | /* Number of possible alterations of the 8 bit rotor-reflector.
| |
| − | The rotor-reflector can't point to it-self. (fx. location 8 can't be 8)
| |
| − | */
| |
| − | rotorreflector=frac(255)
| |
| − | print rotorreflector</input>
| |
| − | 33508506849329791176526651237548149420225840635917407025767798842862\
| |
| − | 08799035732771005626138126763314259280802118502282445926550135522251\
| |
| − | 85672769253319307041281108333032565932204170002979216625073425339051\
| |
| − | 37544660457112403384627010340202629925813784231472766366436471553963\
| |
| − | 05352541105541439434840109915068285430675068591638581980604162940383\
| |
| − | 35658673919826878210492461407660579356286524198217620742862096977680\
| |
| − | 31494674313868079724382476891586560000000000000000000000000000000000\
| |
| − | 00000000000000000000000000000
| |
| − | <input>
| |
| − | | |
| − | /* Number of possible startpositions of the three wheels.
| |
| − | they are called a notch from the original mechanical solution
| |
| − | */
| |
| − | notches=256*256*256
| |
| − | print notches</input>
| |
| − | 16777216
| |
| − | <input>
| |
| − | /*Total number of Keys when using a 8 bit Enigma with three wheels */
| |
| − | wheel*numberofwheels*rotorreflector*notches</input>
| |
| − | 14467425940815419878550914285328747194412838285887202913906796612290\
| |
| − | 67116765686074239837002699523310587812021105128921519898929662849673\
| |
| − | 80231859551685345801700678590340949512766773530970639425397581454798\
| |
| − | 34629363249827620200556239557412599222204518999540726185192515996315\
| |
| − | 06978129392323972906002241190936561257411009104030200763332968508802\
| |
| − | 10053380885667825490547810051729838486330141341759611086561117956500\
| |
| − | 02210195590742957751653052758866489611046357269440002628221514248948\
| |
| − | 17132504901094529220429149272922120473850361954385338800798632554213\
| |
| − | 60438811591136370963675381915493290515801660130577959111839885736840\
| |
| − | 77541504957308491144024012326090397003948528853785364705857026051935\
| |
| − | 47050340165465982389653696093503539510788359067272108792866788729818\
| |
| − | 77493077624052679059588612553113715864219395902995530561734847463169\
| |
| − | 09861780870355495760296743612825305064871402809304345105972352826182\
| |
| − | 65297223680000000000000000000000000000000000000000000000000000000000\
| |
| − | 00000000000000000000000000000000000000000000000000000000000000000000
| |
| − | </source>
| |
| − | {{Source cli}}
| |
| − | === If we used a 10 bit rotor ===
| |
| − | Or try and imagine a 32 bit wheel (Then we would need a better implementation of ''frac'')
| |
| − | <source lang=cli>
| |
| − | <input>frac(1024)</input>
| |
| − | 54185287960588572830769219446838547380015539635380134444828702706832\
| |
| − | 10612073376603733140984136214586719079188457089807539319941657701873\
| |
| − | 68260454133333721939108367528012764993769768292516937891165755680659\
| |
| − | 66374794731451840488667767255612518869433525121367727452196343077013\
| |
| − | 37132057962484331288700884361716546902375183904529447322778084029321\
| |
| − | 58722061853806162806063925435310822186848239287130261690914211362251\
| |
| − | 14468471388858788162925210404629531594994390035788241024393431503744\
| |
| − | 41138908061814062108639532752353758850185984515822295996545585412427\
| |
| − | 89130902486944298610923153307579131675745146436304024890820442907734\
| |
| − | 56182736903050225279692655307296737099075874779312763510470246988966\
| |
| − | 79614621330262371589732278578146318071564277676440645910850765647834\
| |
| − | 56324457736853810336981776080498707767046394272605341416779125697733\
| |
| − | 37456803747518667626596166561588468145026333704252266414186215704682\
| |
| − | 56847733609443267374936766749150989537681129458316266438564790278163\
| |
| − | 85730291542667725665642276826058264393884514911976419675509290208592\
| |
| − | 71315636298329098944105273212518724952750131407167640551693619078182\
| |
| − | 12367019122957673631170541265899299164820085157817519554669109028387\
| |
| − | 29232224509906388638147771255227782631322385756948819393658889908993\
| |
| − | 67087451686065309841102029985381628156433498184710577783953474253149\
| |
| − | 96221034888075845137057698397639931039296650460461211666513451311495\
| |
| − | 13657400869056334867859885025601787284982567787314407216524272262997\
| |
| − | 31979156860362940662474010148269755953315573665880056292127468065728\
| |
| − | 52015704019406922855578006114290557553245497940089398491468126398607\
| |
| − | 50085263298820224719585505344773711590656682821041417265040658600683\
| |
| − | 84494510435499881288680131655155171467338832334085176381971359131237\
| |
| − | 25486737347835373163415173693875652128997265979649032412087273486906\
| |
| − | 99802996369265070088758384854547542272771024255049902319275830918157\
| |
| − | 44820519642107283720493729351617534195777542245315244228039137240771\
| |
| − | 78916612030610402558300550338867900521160254087404546209383843676378\
| |
| − | 86658769912790922323717371343176067483352513629123362885893627132294\
| |
| − | 18356588401041872786935443907708527828855830842709046107501900718493\
| |
| − | 31399155582127523923298797806496390753338457191738228405018695704636\
| |
| − | 26600235265587502335595489311637509380219119860471335771652403999403\
| |
| − | 29636024557725796367328665434895732574099971056713162327234576676193\
| |
| − | 76514081039991936339082864205100985774545240681068973924931382873622\
| |
| − | 26257920000000000000000000000000000000000000000000000000000000000000\
| |
| − | 00000000000000000000000000000000000000000000000000000000000000000000\
| |
| − | 00000000000000000000000000000000000000000000000000000000000000000000\
| |
| − | 00000000000000000000000000000000000000000000000000000000
| |
| − | </source>
| |
| − | | |
| − | ==When the wheels are known==
| |
| − | Like during [http://en.wikipedia.org/wiki/World_War_II World War II] the [http://en.wikipedia.org/wiki/Enigma_machine Allied] get hold of the Wheels for the Enigma and only had to find the order of the Wheels and the startposiotion of each installed wheel.
| |
| − | | |
| − | So with the 8 bit Enigma engine with three wheels installed. There are 10 known wheels in the example below.
| |
| − | <source lang=cli>
| |
| − | <input>/* Total number of wheels possible */
| |
| − | wheelstotal=10
| |
| − | | |
| − | /* With three wheels installed there would be 10*9*8 ways configure */
| |
| − | wheelcombinations=10*9*8
| |
| − | | |
| − | /* Each wheel can start in 256 ways */
| |
| − | notches=256*256*256
| |
| − | | |
| − | /* Total number of keys, when the wheels are known */
| |
| − | wheelstotal*wheelcombinations*notches</input>
| |
| − | 120795955200
| |
| − | </Source> | |
| | [[Category:CoE]] | | [[Category:CoE]] |
There are three C-programs and four file in this project. All singlethreaded C programs.