--- /dev/null
+{
+ "cells": [
+ {
+ "cell_type": "code",
+ "execution_count": 1,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "import os,sys,inspect\n",
+ "currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))\n",
+ "parentdir = os.path.dirname(currentdir)\n",
+ "sys.path.insert(0,parentdir) "
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 2,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "from cipher.caesar import *\n",
+ "from cipher.affine import *\n",
+ "from cipher.keyword_cipher import *\n",
+ "from cipher.column_transposition import *\n",
+ "from cipher.vigenere import *\n",
+ "from support.text_prettify import *\n",
+ "from support.utilities import *\n",
+ "from support.plot_frequency_histogram import *\n",
+ "import re"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 3,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "challenge_number = 9\n",
+ "plaintext_a_filename = f'{challenge_number}a.plaintext'\n",
+ "plaintext_b_filename = f'{challenge_number}b.plaintext'\n",
+ "ciphertext_a_filename = f'{challenge_number}a.ciphertext'\n",
+ "ciphertext_b_filename = f'{challenge_number}b.ciphertext'"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 4,
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "ca = open(ciphertext_a_filename).read()\n",
+ "cb = open(ciphertext_b_filename).read()\n",
+ "\n",
+ "rwa = wcat(cat(reversed(w)) for w in ca.split())\n",
+ "ra = cat(reversed(ca))\n",
+ "sca = sanitise(ca)\n",
+ "rsca = cat(reversed(sca))\n",
+ "pca = letters(ca)\n",
+ "pta = depunctuate(ca)\n",
+ "\n",
+ "scb = sanitise(cb)\n",
+ "pcb = letters(cb)\n",
+ "rscb = cat(reversed(scb))"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 5,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stderr",
+ "output_type": "stream",
+ "text": [
+ "/usr/local/lib/python3.6/dist-packages/matplotlib/figure.py:445: UserWarning: Matplotlib is currently using module://ipykernel.pylab.backend_inline, which is a non-GUI backend, so cannot show the figure.\n",
+ " % get_backend())\n"
+ ]
+ },
+ {
+ "data": {
+ "image/png": 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\n",
+ "text/plain": [
+ "<Figure size 432x288 with 1 Axes>"
+ ]
+ },
+ "metadata": {
+ "needs_background": "light"
+ },
+ "output_type": "display_data"
+ }
+ ],
+ "source": [
+ "fc = collections.Counter(sca)\n",
+ "plot_frequency_histogram(fc, sort_key=fc.get)"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 6,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "etsllamsenopaeltnaigenop \n",
+ "\n"
+ ]
+ },
+ {
+ "data": {
+ "text/plain": [
+ "'rehpicsihtkaerbewtahtlaicurcsitiskeewweftxenehtniffotfilrofdeludehcsnotyalsdnadnarbdroffatshtiwniagarawfoknirbehtnosevlesruodnifthgimewftsaehtfowercehtotsneppahgnihtynafiysaemorfrafllitssiecaepehttubogasraeyeerhtaissurnorawgniralcedotniaciremaekovorpotdeliafehshtiwderepmatevahyamefiwsekimtahtmetsyslacitircrehtoemossierehtfiwonktnodewtituohtiwkcarctnacielifenosierehttubrewoplacirtcelednatroppusefillortnocecnadiughtiwsmelborpdexifdnadnuofdnamehtfoenotublladekcarcevahewrafosscissalckeergrehtodnasurodolloparemohmorfemactahtsyekgnisudelbmarcsllaerewselifehtiiixollopahtiwdetaicossaselifderepmatehtfoemdednimertahtsdrocerecivresdetidefoliartadnuofiytirucesriehttiduaotnikcabemdellacyehtossthgilfranulehthtiwdahewsmelborpehttuobamehtdednimerenoemosasantamaetzuyosollopaehtmorfllacakootinodnolmorftroperehtdevieceriretfanooskuehttfelehstahtretfanoosdnadekoversawecnaraelcytirucesrehsrengiapmacecaephtiwgniteemdetratsdnaaeroknideidnosrehretfatfelehsotsefinamehtniseirrowehthtiwyltcefrepstifhcihwerwaytirohtuasnopaewcimotakuehthtiwgnikrowedartrehdenraelehsyltnacifingissthgilfollopareilraeehtnowasewegatobasfotrosehttuogniyrracfoelbapacetiuqsawohwreenignenasawehsemdlotyehtdnakuehtniecivresytirucesehtotekopsitnewehserehwswonkenoondnarehneestonevahyehtyasedisetatssevitalerrehtubogasraeynevelesawtahtylimaflanigirorehraenebotsetatsehtotkcabgnivomsawehsmehtdlotehsyrevocerwolsaekildemeestahwretfaswalnirehhtiwevilottnewehssuehtotkcabdevomekimnehwdnadeidnosrehretfanwodkaerbadahehsyassdneirfrehemmargorpfognillepshsilgneehtsesuotsefinamehtdnahsilgneoslasiefiwsekimefiwsekimtuobaseiriuqneedamdnalopretnihtiwhcuotnitogiosedirprehrofegnevernisdogehtybdellikerewsnosesohwneeuqehtsasuomafsawehsdailiehtniebointuobaetorwremohreraelcelttilategotnagebsgnihteboinrehpicotsefinamehtrofdrowyekehthtiwrehtegottahtgnittupdeirramsawekimtahtemdednimerevahdluowtipotehttanosruoesarhpehtdecitonevahdluohsiseulcrofylluferaceromniagatidaerimihybnettirwsawotsefinamehtknihttnodiosenofoesopsidotemitekimevigtndidewdnaedihotyklubdnagibootsiretirwepytarehtiesenihcamasanehtfoynahctamtnodotsefinamehtnoecafepytdnakniehtesacynanidnamihrofepytotyratercesadaheherehtkrowtaneveretirwepytrehtonanomihybnettirwgnihtynadniftndluoctubselifehthguorhtdekooliretirwepytsekimnodecudorptonsawotsefinamehtevisulcnocerastluserehtstsetehtnurotmehttogdnayelgnalotrevotitnesiekatsimehtdesilaerisanoossatikcehcotenoemosksaottogrofitahttnetnocstignisylanadnarehpicehtgnikcarchtiwpunekatossawisseugitnemucodehtnoscisneroftuodeirracrevenewtubtidessimewwohwonktnodikoolrehtonakootdnaotsefinamehttuogudierehttoginehwossretrauqdaehotkcabyawehtnotituobayrrowotdeunitnocitubweivretniehtfotuoeromgnihtynategtndidignihtemosgnidihsawehgnileefehttogidnacipotehtffoemreetsotdrahgniyrtyletinifedsawehtubtituobawenkewwenkehostruocnituodaerneebdahtiotsefinamehttuobamihdeksadnaredrahdesserpisserpehtotrettelehttnesehstimdaehhguohtstnediccaehtdellacehtahwhtiwodotgnihtondahehsmialcllitseherehtsawiyhwtuoerugifotgnolmihekattndidtidnatuobaklatottolaevahtndidewtubsrotisivynamstegehknihttnodiemeesotdesaelpdemeesehasantagnikrowllitssawehnehwkcabnoitomnignihtemostesevahtndluocehtahttnedifnocyletelpmoctonsawiiivxollopanomelborpnoitazirusserpknatehtretfasurofsesirprusrevotfelynaevahtndideherusekamdnaekimhtiwnikcehcotaedidoogaebdluowtithguohtipugnimocnoissimzuyosollopaehtfohcnualehthtiwyrrah'"
+ ]
+ },
+ "execution_count": 6,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "k_a, score_b = vigenere_frequency_break(sca, fitness=Ptrigrams, max_key_length=26)\n",
+ "print(k_a, '\\n')\n",
+ "pa = vigenere_decipher(sca, k_a)\n",
+ "pa"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 7,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "onesmallsteponegiantleap \n",
+ "\n"
+ ]
+ },
+ {
+ "data": {
+ "text/plain": [
+ "'harrywiththelaunchoftheapollosoyuzmissioncomingupithoughtitwouldbeagoodideatocheckinwithmikeandmakesurehedidnthaveanyleftoversurprisesforusafterthetankpressurizationproblemonapolloxviiiwasnotcompletelyconfidentthathecouldnthavesetsomethinginmotionbackwhenhewasstillworkingatnasaheseemedpleasedtoseemeidontthinkhegetsmanyvisitorsbutwedidnthavealottotalkaboutanditdidnttakehimlongtofigureoutwhyiwastherehestillclaimshehadnothingtodowithwhathecalledtheaccidentsthoughheadmitshesentthelettertothepressipressedharderandaskedhimaboutthemanifestoithadbeenreadoutincourtsoheknewweknewaboutitbuthewasdefinitelytryinghardtosteermeoffthetopicandigotthefeelinghewashidingsomethingididntgetanythingmoreoutoftheinterviewbuticontinuedtoworryaboutitonthewaybacktoheadquarterssowhenigotthereidugoutthemanifestoandtookanotherlookidontknowhowwemisseditbutwenevercarriedoutforensicsonthedocumentiguessiwassotakenupwithcrackingthecipherandanalysingitscontentthatiforgottoasksomeonetocheckitassoonasirealisedthemistakeisentitovertolangleyandgotthemtoruntheteststheresultsareconclusivethemanifestowasnotproducedonmikestypewriterilookedthroughthefilesbutcouldntfindanythingwrittenbyhimonanothertypewriterevenatworktherehehadasecretarytotypeforhimandinanycasetheinkandtypefaceonthemanifestodontmatchanyofthenasamachineseitheratypewriteristoobigandbulkytohideandwedidntgivemiketimetodisposeofonesoidontthinkthemanifestowaswrittenbyhimireaditagainmorecarefullyforcluesishouldhavenoticedthephraseoursonatthetopitwouldhaveremindedmethatmikewasmarriedputtingthattogetherwiththekeywordforthemanifestocipherniobethingsbegantogetalittleclearerhomerwroteaboutniobeintheiliadshewasfamousasthequeenwhosesonswerekilledbythegodsinrevengeforherpridesoigotintouchwithinterpolandmadeenquiriesaboutmikeswifemikeswifeisalsoenglishandthemanifestousestheenglishspellingofprogrammeherfriendssayshehadabreakdownafterhersondiedandwhenmikemovedbacktotheusshewenttolivewithherinlawsafterwhatseemedlikeaslowrecoveryshetoldthemshewasmovingbacktothestatestobenearheroriginalfamilythatwaselevenyearsagobutherrelativesstatesidesaytheyhavenotseenherandnooneknowswhereshewentispoketothesecurityserviceintheukandtheytoldmeshewasanengineerwhowasquitecapableofcarryingoutthesortofsabotagewesawontheearlierapolloflightssignificantlyshelearnedhertradeworkingwiththeukatomicweaponsauthorityawrewhichfitsperfectlywiththeworriesinthemanifestosheleftafterhersondiedinkoreaandstartedmeetingwithpeacecampaignershersecurityclearancewasrevokedandsoonafterthatshelefttheuksoonafterireceivedthereportfromlondonitookacallfromtheapollosoyuzteamatnasasomeoneremindedthemabouttheproblemswehadwiththelunarflightssotheycalledmebackintoaudittheirsecurityifoundatrailofeditedservicerecordsthatremindedmeofthetamperedfilesassociatedwithapolloxiiithefileswereallscrambledusingkeysthatcamefromhomerapollodorusandothergreekclassicssofarwehavecrackedallbutoneofthemandfoundandfixedproblemswithguidancecontrollifesupportandelectricalpowerbutthereisonefileicantcrackwithoutitwedontknowifthereissomeothercriticalsystemthatmikeswifemayhavetamperedwithshefailedtoprovokeamericaintodeclaringwaronrussiathreeyearsagobutthepeaceisstillfarfromeasyifanythinghappenstothecrewoftheastfwemightfindourselvesonthebrinkofwaragainwithstaffordbrandandslaytonscheduledforliftoffinthenextfewweeksitiscrucialthatwebreakthiscipher'"
+ ]
+ },
+ "execution_count": 7,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "k_a, score_b = vigenere_frequency_break(rsca, fitness=Ptrigrams, max_key_length=26)\n",
+ "print(k_a, '\\n')\n",
+ "pa = vigenere_decipher(rsca, k_a)\n",
+ "pa"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 8,
+ "metadata": {},
+ "outputs": [
+ {
+ "name": "stdout",
+ "output_type": "stream",
+ "text": [
+ "harry with the launch of the apollo soyuz mission coming up i thought it would be a good idea to\n",
+ "check in with mike and make sure he didnt have any leftover surprises for us after the tank\n",
+ "pressurization problem on apollo xviii was not completely confident that he couldnt have set\n",
+ "something in motion back when he was still working at nasa he seemed pleased to see me i dont think\n",
+ "he gets many visitors but we didnt have alot to talkabout and it didnt take him long to figure out\n",
+ "why i was there he still claims he had nothing to do with what he called the accidents though he\n",
+ "admit she sent the letter to the press i pressed harder and asked him about the manifesto it had\n",
+ "been readout in court so he knew we knew about it but he was definitely trying hard to steer me off\n",
+ "the topic and i got the feeling he was hiding something i didnt get anything more out of the\n",
+ "interview but i continued to worry about it on the wayback to headquarters so when i got there i\n",
+ "dugout the manifesto and took another look i dont know how we missed it but we never carried out\n",
+ "forensics on the document i guess i was so taken up with cracking the cipher and analysing its\n",
+ "content that i forgot to ask someone to check it as soon as i realised the mistake i sent it over to\n",
+ "langley and got them to run the tests the results are conclusive the manifesto was not produced on\n",
+ "mikes typewriter i looked through the files but couldnt find anything written by him on another\n",
+ "typewriter even at work there he had a secretary to type for him and in any case the ink and\n",
+ "typeface on the manifesto dont match any of the nasa machines either a typewriter is too big and\n",
+ "bulky to hide and we didnt give mike time to dispose of one so i dont think the manifesto was\n",
+ "written by him i read it again more carefully for clues i should have noticed the phrase our son at\n",
+ "the top it would have reminded me that mike was married putting that together with the keyword for\n",
+ "the manifesto cipher niobe things began to get a little clearer homer wrote about niobe in the iliad\n",
+ "she was famous as the queen whose sons were killed by the gods in revenge for her pride so i got in\n",
+ "touch with interpol and made enquiries about mikes wife mikes wife is also english and the manifesto\n",
+ "uses the english spelling of programme her friends says he had a breakdown after her son died and\n",
+ "when mike moved back to the us she went to live with her in laws after what seemed like as low\n",
+ "recovery she told them she was moving back to the states to be near her original family that was\n",
+ "eleven years ago but her relatives stateside say they have not seen her and no one knows where she\n",
+ "went i spoke to the security service in the uk and they told me she was an engineer who was quite\n",
+ "capable of carrying out the sort of sabotage we saw on the earlier apollo flights significantly she\n",
+ "learned her trade working with the uk atomic weapons authority aw re which fits perfectly with the\n",
+ "worries in the manifesto she left after her son died in korea and started meeting with peace\n",
+ "campaigners her security clearance was revoked and soon after that she left the uk soon after i\n",
+ "received the report from london i took a call from the apollo soyuz team at nasa someone reminded\n",
+ "them about the problems we had with the lunar flights so they called me back into audit their\n",
+ "security i found a trail of edited service records that reminded me of the tampered files associated\n",
+ "with apollo xiii the files were all scrambled using keys that came from homer apollodorus and other\n",
+ "greek classics so far we have cracked all but one of them and found and fixed problems with guidance\n",
+ "control life support and electrical power but there is one file icant crack without it we dont know\n",
+ "if there is some other critical system that mikes wife may have tampered with she failed to provoke\n",
+ "america into declaring war on russia three years ago but the peace is still far from easy if\n",
+ "anything happens to the crew of the as tf we might find ourselves on the brink of war again with\n",
+ "stafford brand and slayton scheduled for liftoff in the next few weeks it is crucial that we break\n",
+ "this cipher\n"
+ ]
+ }
+ ],
+ "source": [
+ "print(lcat(tpack(segment(pa))))"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 9,
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/plain": [
+ "4107"
+ ]
+ },
+ "execution_count": 9,
+ "metadata": {},
+ "output_type": "execute_result"
+ }
+ ],
+ "source": [
+ "open(plaintext_a_filename, 'w').write(lcat(tpack(segment(pa))))"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": null,
+ "metadata": {},
+ "outputs": [],
+ "source": []
+ }
+ ],
+ "metadata": {
+ "kernelspec": {
+ "display_name": "Python 3",
+ "language": "python",
+ "name": "python3"
+ },
+ "language_info": {
+ "codemirror_mode": {
+ "name": "ipython",
+ "version": 3
+ },
+ "file_extension": ".py",
+ "mimetype": "text/x-python",
+ "name": "python",
+ "nbconvert_exporter": "python",
+ "pygments_lexer": "ipython3",
+ "version": "3.6.9"
+ }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
projects / cipher-tools.git / blobdiff