{"id":36282,"date":"2023-07-04T13:11:38","date_gmt":"2023-07-04T13:11:38","guid":{"rendered":"https:\/\/ebrandservices.fr\/?p=36282"},"modified":"2025-04-28T08:26:07","modified_gmt":"2025-04-28T08:26:07","slug":"systeme-ens-vs-systeme-dns","status":"publish","type":"post","link":"https:\/\/ebrand.com\/fr\/blog\/systeme-ens-vs-systeme-dns\/","title":{"rendered":"SYST\u00c8ME ENS vs SYST\u00c8ME DNS"},"content":{"rendered":"<p><span style=\"font-size: x-large;\">\u00c0 l\u2019\u00e8re de la technologie blockchain et des crypto-monnaies, vous avez peut-\u00eatre entendu parler du nouveau syst\u00e8me de nommage ENS. En quoi celui-ci diff\u00e8re-t-il du syst\u00e8me de noms de domaine, dit DNS, que nous utilisons quotidiennement ? C\u2019est ce que nous vous proposons de d\u00e9couvrir en comparant ces deux syst\u00e8mes et leurs caract\u00e9ristiques respectives.<\/span><\/p>\n<p>Qui se souvient qu\u2019au tout d\u00e9but de l\u2019Internet, il fallait saisir une longue s\u00e9rie de chiffres difficile \u00e0 m\u00e9moriser, appel\u00e9e adresse IP, pour acc\u00e9der au contenu d\u2019une page Web ? Une difficult\u00e9 que nous avons vite oubli\u00e9e, d\u00e8s qu\u2019est apparu le syst\u00e8me des <a href=\"https:\/\/ebrandservices.fr\/services\/noms-de-domaine\/\">noms de domaine<\/a> dit DNS (Domain Name System) qui a simplifi\u00e9 la navigation et la communication des internautes sur le Web.<\/p>\n<p>L\u2019histoire des crypto-monnaies a commenc\u00e9 selon un processus quasi identique, avec des adresses alphanum\u00e9riques correspondant \u00e0 celles des portefeuilles (wallets) d\u00e9tenus par les utilisateurs de ces nouvelles monnaies num\u00e9riques. Jusqu\u2019\u00e0 ce que la cr\u00e9ation de l\u2019Ethereum Naming Service, ou ENS, permette de rendre l\u2019utilisation des crypto-monnaies aussi simple que la navigation sur le Web. De quoi s\u2019agit-il ?<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-40623 size-full\" src=\"https:\/\/ebrand.com\/wp-content\/uploads\/2023\/07\/Banniere-NFT.png\" alt=\"Noms De Domaine NFT Banniere\" width=\"768\" height=\"201\" srcset=\"https:\/\/ebrand.com\/wp-content\/uploads\/2023\/07\/Banniere-NFT.png 768w, https:\/\/ebrand.com\/wp-content\/uploads\/2023\/07\/Banniere-NFT-300x79.png 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<h2>LE SYST\u00c8ME ENS<\/h2>\n<p>Tout utilisateur de crypto-monnaie, entreprise ou particulier, doit obligatoirement poss\u00e9der une adresse de portefeuille (wallet). Celle-ci se pr\u00e9sente \u00e0 l\u2019origine sous la forme d\u2019une cha\u00eene de caract\u00e8res du type \u00ab\u00a0e32fre43f584bnf2784b3\u00a0\u00bb, difficile \u00e0 saisir sans se tromper et quasi impossible \u00e0 m\u00e9moriser. Or, la moindre erreur de saisie dans la seule adresse qui permet d\u2019acc\u00e9der \u00e0 votre portefeuille ou d\u2019effectuer une transaction peut causer la perte de toutes vos possessions en crypto-monnaies.<\/p>\n<p>En 2017 la cr\u00e9ation de l\u2019Ethereum Naming Service, commun\u00e9ment appel\u00e9 ENS, vient pallier cette difficult\u00e9 en transformant les adresses crypt\u00e9es de la blockchain Ethereum comme \u00ab\u00a0e32fre43f584bnf2784b3\u00a0\u00bb en noms de domaine .ETH facilement m\u00e9morisables, du type \u00ab entreprise.ETH \u00bb. Rappelons ici qu\u2019une blockchain ou cha\u00eene de blocs est une base de donn\u00e9es d\u00e9centralis\u00e9e (sans organe central de contr\u00f4le) et qu\u2019elle est mise \u00e0 jour et partag\u00e9e entre les utilisateurs d\u2019un m\u00eame r\u00e9seau. Les donn\u00e9es inscrites et contenues dans chaque bloc de la cha\u00eene ne peuvent \u00eatre effac\u00e9es. Outre la facilit\u00e9 de m\u00e9morisation d\u2019un nom de domaine, ce syst\u00e8me offre de nombreux avantages :<\/p>\n<ul>\n<li><strong>S\u00e9curit\u00e9<\/strong> : r\u00e9duction du risque d&rsquo;erreurs lors de la saisie des adresses, ce qui permet de mieux prot\u00e9ger les crypto-monnaies.<\/li>\n<li><strong>Rapidit\u00e9<\/strong> : saisie plus rapide de votre adresse, et donc des transactions souhait\u00e9es.<\/li>\n<li><strong>Marketing et pr\u00e9sence en ligne<\/strong> : les entreprises peuvent ainsi montrer leur int\u00e9r\u00eat pour les crypto-monnaies et pour le Web 3, terme d\u00e9signant l\u2019id\u00e9e d\u2019un Internet d\u00e9centralis\u00e9, ind\u00e9pendant des \u00c9tats et des g\u00e9ants du num\u00e9rique.<br \/>\nLes entreprises peuvent \u00e9galement exploiter les domaines ENS afin de partager leur adresse avec les clients et partenaires, envoyer ou recevoir des paiements et s\u2019engager via des contrats intelligents (smart contracts) stock\u00e9s sur la blockchain Ethereum, sans possibilit\u00e9 de modification de l\u2019accord d\u00e8s que toutes les conditions de celui-ci sont remplies.<\/li>\n<\/ul>\n<p>En outre, les entreprises peuvent utiliser ces domaines ENS pour cr\u00e9er des sites web d\u00e9centralis\u00e9s et h\u00e9berg\u00e9s sur la blockchain Ethereum, cela leur permettant de s\u2019assurer une pr\u00e9sence en ligne distincte, s\u00e9curis\u00e9e et sous leur contr\u00f4le direct.<\/p>\n<h2>LE SYST\u00c8ME DNS<\/h2>\n<p><a href=\"https:\/\/ebrandservices.fr\/services\/noms-de-domaine\/\">Le syst\u00e8me de noms de domaine (DNS pour Domain Name System)<\/a> a \u00e9t\u00e9 mis au point en 1983 par Paul Mockapetris, un informaticien am\u00e9ricain. Il permet de \u00ab traduire \u00bb l\u2019adresse IP du type de celle de Netflix 216.59.217.165, gr\u00e2ce \u00e0 laquelle sont identifi\u00e9es toutes les machines connect\u00e9es \u00e0 Internet, en une adresse alphanum\u00e9rique plus facile \u00e0 retenir, \u00e0 savoir un nom de domaine. Celui qui nous permet de nous connecter \u00e0 un site Web n\u2019importe o\u00f9 dans le monde, d\u2019avoir une adresse email, d\u2019effectuer des recherches sur Internet\u2026<\/p>\n<p>Ce syst\u00e8me DNS a en effet consid\u00e9rablement facilit\u00e9 et am\u00e9lior\u00e9 l\u2019exp\u00e9rience des premiers utilisateurs de l\u2019Internet gr\u00e2ce \u00e0 deux avantages majeurs :<\/p>\n<p>La s\u00e9curit\u00e9, en r\u00e9duisant la probabilit\u00e9 importante de fautes de frappe dans la saisie en \u00ab traduisant \u00bb l\u2019adresse IP en nom de domaine, \u00e9vitant ainsi \u00e0 l\u2019utilisateur de se diriger vers un autre site web que celui souhait\u00e9.<\/p>\n<p>La rapidit\u00e9, en facilitant la m\u00e9morisation et la saisie de ces noms de domaine et en permettant donc un acc\u00e8s plus prompt au site web voulu.<\/p>\n<h2>L\u2019ENS, FR\u00c8RE JUMEAU DU DNS ?<\/h2>\n<p>\u00c0 premi\u00e8re vue, on pourrait le croire car ces syst\u00e8mes, ENS et DNS, simplifient tous deux des adresses en ligne initialement complexes, qu\u2019il s\u2019agisse d\u2019adresses IP (DNS) ou d\u2019adresses de portefeuilles cryptographiques (ENS), en les \u00ab traduisant \u00bb en noms simples, lisibles et m\u00e9morisables, facilitant ainsi la navigation des utilisateurs sur le Web.<\/p>\n<p>Leur diff\u00e9rence r\u00e9side dans l\u2019architecture de chacun des syst\u00e8mes :<\/p>\n<p>L\u2019ENS est construit sur la blockchain ou cha\u00eene de blocs Ethereum, un r\u00e9seau d\u00e9centralis\u00e9 qui n\u2019est contr\u00f4l\u00e9 par aucune entit\u00e9. Chaque transaction partag\u00e9e sur le r\u00e9seau est collect\u00e9e et trait\u00e9e par lots, d\u00e9sign\u00e9s par le mot \u00ab blocs \u00bb, selon un processus rendant quasiment impossible toute modification ou falsification du bloc une fois qu\u2019il est valid\u00e9.<br \/>\nAinsi, avec le syst\u00e8me ENS, plusieurs ordinateurs v\u00e9rifient et garantissent que le nom de domaine \u00ab\u00a0rippleventures.eth\u00a0\u00bb correspond \u00e0 \u00ab\u00a0fn4u9317bu239f4389fn51u93581n9\u00a0\u00bb.<\/p>\n<p>En revanche, le syst\u00e8me DNS est centralis\u00e9 et fonctionne gr\u00e2ce \u00e0 des serveurs d\u00e9di\u00e9s, dits serveurs DNS, qui permettent de trouver l\u2019adresse IP associ\u00e9e \u00e0 un nom de domaine (on appelle cela la r\u00e9solution DNS) et repr\u00e9sentent donc le premier point de contact entre les utilisateurs finaux et leurs services.<\/p>\n<h2>CONSEIL D&rsquo;EXPERT<\/h2>\n<p>La comparaison entre le DNS et l&rsquo;ENS est capitale car elle met en \u00e9vidence l&rsquo;importance des services de nommage dans l&rsquo;adoption de nouvelles technologies. Personne ne souhaite se souvenir d&rsquo;une adresse IP ou d&rsquo;une adresse alphanum\u00e9rique complexe de portefeuille cryptographique.<\/p>\n<p>Le DNS et l&rsquo;ENS simplifient ces \u00e9l\u00e9ments en leur attribuant des noms plus faciles \u00e0 m\u00e9moriser. Cela permet de renforcer la s\u00e9curit\u00e9, d&rsquo;am\u00e9liorer la vitesse et d\u2019optimiser l&rsquo;exp\u00e9rience des utilisateurs. \u00c9tant donn\u00e9 que l&rsquo;adoption des crypto-monnaies au niveau mondial est encore inf\u00e9rieure \u00e0 10 %, l&rsquo;ENS et les prochaines am\u00e9liorations de l&rsquo;exp\u00e9rience utilisateur pourraient jouer un r\u00f4le d\u00e9terminant et faciliter l&rsquo;int\u00e9gration de nombreux usagers \u00e0 l&rsquo;\u00e9cosyst\u00e8me des crypto-monnaies.<\/p>\n<p>Les deux syst\u00e8mes cohabitent. DNS a fait ses preuves. ENS s\u2019en inspire. Il s\u2019agit l\u00e0 d\u2019une avanc\u00e9e positive pour les utilisateurs de crypto-monnaies.<\/p>\n<p><img decoding=\"async\" class=\"alignnone wp-image-40615 size-full\" src=\"https:\/\/ebrand.com\/wp-content\/uploads\/2023\/07\/Banniere-NFT2.png\" alt=\"NFT Banniere\" width=\"768\" height=\"201\" srcset=\"https:\/\/ebrand.com\/wp-content\/uploads\/2023\/07\/Banniere-NFT2.png 768w, https:\/\/ebrand.com\/wp-content\/uploads\/2023\/07\/Banniere-NFT2-300x79.png 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<p><em>Par <a href=\"https:\/\/ebrandservices.fr\/qui-sommes-nous\/notre-equipe\/\">Rapha\u00ebl TESSIER<\/a> et Sophie AUDOUSSET pour EBRAND France.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c0 l\u2019\u00e8re de la technologie blockchain et des crypto-monnaies, vous avez peut-\u00eatre entendu parler du nouveau syst\u00e8me de nommage ENS. En quoi celui-ci diff\u00e8re-t-il du syst\u00e8me de noms de domaine, dit DNS, que nous utilisons quotidiennement ? C\u2019est ce que nous vous proposons de d\u00e9couvrir en comparant ces deux syst\u00e8mes et leurs caract\u00e9ristiques respectives. Qui [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":40631,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[125],"tags":[],"class_list":["post-36282","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>SYST\u00c8ME ENS vs SYST\u00c8ME DNS - EBRAND<\/title>\n<meta name=\"description\" content=\"Connaissez-vous le nouveau syst\u00e8me de nommage ENS ? 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