{"id":427,"date":"2018-08-26T11:57:12","date_gmt":"2018-08-26T09:57:12","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/lehning\/?p=427"},"modified":"2018-08-28T08:03:13","modified_gmt":"2018-08-28T06:03:13","slug":"de-lutilite-dune-mauvaise-orthographe-pour-chiffrer","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/lehning\/2018\/08\/26\/de-lutilite-dune-mauvaise-orthographe-pour-chiffrer\/","title":{"rendered":"De l’utilit\u00e9 d’une mauvaise orthographe pour chiffrer"},"content":{"rendered":"

Une bonne orthographe peut perdre l’apprenti chiffreur car elle facilite la recherche de mots probables. Ainsi,\u00a0\u00e9crire \u00ab\u00a0pit\u00e8n\u00a0\u00bb au lieu de \u00ab\u00a0capitaine\u00a0\u00bb peut servir \u00e0 la dissimulation\u2026 <\/span><\/span><\/p>\n

Le tueur du zodiaque<\/h2>\n

Un tueur en s\u00e9rie, qui s\u00e9vit en Californie \u00e0 la fin des ann\u00e9es soixante et d\u00e9but des ann\u00e9es soixante-dix, nargua la police avec des messages chiffr\u00e9s de fa\u00e7on a priori simple. Tout porte \u00e0 penser qu\u2019il est mort depuis puisque ses crimes et ses revendications cess\u00e8rent, mais rien ne le prouve. Nous ne nous int\u00e9resserons pas \u00e0 cet aspect ici mais aux quelques messages chiffr\u00e9s qu\u2019il envoya \u00e0 la police et \u00e0 la presse dont le suivant.<\/span><\/span><\/p>\n

\"\"D\u00e9cryptement<\/h2>\n

L\u2019un d\u2019entre eux fut d\u00e9crypt\u00e9 par un enseignant et son \u00e9pouse, Donald et Betty Harden. Leur id\u00e9e fut de rentrer dans la psychologie d\u2019un tueur en s\u00e9rie qui, selon eux, a un \u00e9go surd\u00e9velopp\u00e9\u2026 ainsi le message devait commencer par la lettre \u00ab\u00a0I\u00a0\u00bb qui, en anglais, signifie \u00ab\u00a0je\u00a0\u00bb. Ensuite, ils ont cherch\u00e9 \u00ab\u00a0kill\u00a0\u00bb et \u00ab\u00a0killing\u00a0\u00bb qui correspondent au verbe \u00ab\u00a0tuer\u00a0\u00bb. Le code s\u2019\u00e9croula ensuite petit \u00e0 petit. Pour tromper les d\u00e9crypteurs, le tueur avait de plus fait de nombreuses fautes d\u2019orthographe. <\/span>Voici le message d\u00e9crypt\u00e9\u00a0:<\/span><\/span><\/p>\n

I LIKE KILLING PEOPLE BECAUSE IT IS SO MUCH FUN IT IS MORE FUN THAN KILLING WILD GAME IN THE FORREST BECAUSE MAN IS THE MOST DANGEROUS ANAMAL OF ALL TO KILL SOMETHING GIVES ME THE MOST THRILLING EXPERENCE IT IS EVEN BETTER THAN GETTING YOUR ROCKS OFF WITH A GIRL THE BEST PART OF IT IS THAT WHEN I DIE I WILL BE REBORN IN PARADICE AND ALL THE I HAVE KILLED WILL BECOME MY SLAVES I WILL NOT GIVE YOU MY NAME BECAUSE YOU WILL TRY TO SLOI DOWN OR STOP MY COLLECTING OF SLAVES FOR MY AFTERLIFE EBEORIETEMETHHPITI<\/span><\/span><\/p>\n

Nous pouvons le traduire ainsi\u00a0: \u00ab\u00a0J\u2019aime tuer les gens parce que c\u2019est du plaisir, plus que de tuer du gibier dans la for\u00eat, parce que l\u2019homme est l\u2019animal le plus dangereux de tous \u00e0 tuer. C\u2019est excitant, m\u00eame plus que d\u2019avoir du bon temps avec une fille. Le mieux sera quand je mourrai. Je rena\u00eetrai au paradis et tous ceux que j\u2019ai tu\u00e9s deviendront mes esclaves. Je ne donnerai pas mon nom car vous essayeriez de ralentir ou de stopper ma r\u00e9colte d\u2019esclaves pour mon au-del\u00e0. Ebeorietemethhpiti.\u00a0\u00bb<\/span><\/span><\/p>\n

Malheureusement, malgr\u00e9 ce qu\u2019il avait annonc\u00e9 \u00e0 la police, sa signature restait incompr\u00e9hensible. Il annon\u00e7ait d\u2019ailleurs lui-m\u00eame pourquoi il ne donnait pas son nom.<\/span><\/span><\/p>\n

\u00a0<\/span><\/span><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Une bonne orthographe peut perdre l’apprenti chiffreur car elle facilite la recherche de mots probables. Ainsi,\u00a0\u00e9crire \u00ab\u00a0pit\u00e8n\u00a0\u00bb au lieu de \u00ab\u00a0capitaine\u00a0\u00bb peut servir \u00e0 la dissimulation\u2026 Le tueur du zodiaque Un tueur en s\u00e9rie, qui s\u00e9vit en Californie \u00e0 la fin des ann\u00e9es soixante et d\u00e9but des ann\u00e9es soixante-dix, nargua la police avec des messages … Continuer la lecture de De l’utilit\u00e9 d’une mauvaise orthographe pour chiffrer<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":12,"featured_media":431,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[9,8,63,3],"tags":[165,164,162,163],"class_list":["post-427","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cryptologie","category-enigmes","category-histoire","category-sciences","tag-fautes","tag-orthographe","tag-tueur","tag-zodiaque"],"yoast_head":"\nDe l'utilit\u00e9 d'une mauvaise orthographe pour chiffrer, par Herv\u00e9 Lehning<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/lehning\/2018\/08\/26\/de-lutilite-dune-mauvaise-orthographe-pour-chiffrer\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"De l'utilit\u00e9 d'une mauvaise orthographe pour chiffrer, par Herv\u00e9 Lehning\" \/>\n<meta property=\"og:description\" content=\"Une bonne orthographe peut perdre l’apprenti chiffreur car elle facilite la recherche de mots probables. 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