{"id":31306,"date":"2019-02-26T14:05:00","date_gmt":"2019-02-26T14:05:00","guid":{"rendered":"https:\/\/fr.cryptonews.com\/?p=31306"},"modified":"2023-06-26T11:06:57","modified_gmt":"2023-06-26T11:06:57","slug":"c-est-quoi-un-reseau-pair-a-pair-2939","status":"publish","type":"post","link":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/","title":{"rendered":"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><sub>Photo: iStock\/Stas_V<\/sub><\/p><p>Dans le monde des cryptos, vous allez tr&egrave;s vraisemblablement tomber souvent sur le terme &ldquo;<b>pair &agrave; pair<\/b>&rdquo;. Si vous n&rsquo;&ecirc;tes pas familier avec ce concept informatique, voici quelques explications pour comprendre. <\/p><p>Le principe d&rsquo;un r&eacute;seau pair &agrave; pair (ou <i>peer-to-peer<\/i> en anglais, abr&eacute;g&eacute; aussi P2P) est que les &eacute;changes se font directement entre deux utilisateurs connect&eacute;s au syst&egrave;me et qu&rsquo;il n&rsquo;est pas n&eacute;cessaire de passer par un serveur central. Contrairement au mod&egrave;le client-serveur, chaque utilisateur\/ordinateur\/noeud du r&eacute;seau est ici &agrave; la fois client ET serveur. Ce syst&egrave;me n&rsquo;est pas nouveau et a &eacute;t&eacute; notamment tr&egrave;s utilis&eacute; et popularis&eacute; au d&eacute;but des ann&eacute;es 2000 pour le t&eacute;l&eacute;chargement ill&eacute;gal, les plus &ldquo;anciens&rdquo; se souviendront certainement de <b>BitTorrent <\/b>par exemple.<\/p><p>Mais pourquoi parle-t-on souvent de syst&egrave;me pair &agrave; pair avec les cryptomonnaies? Et bien tout simplement car la blockchain, le r&eacute;seau sur lequel fonctionnent les cryptomonnaies comme Bitcoin, est un syst&egrave;me pair &agrave; pair. Les transactions sont en effet diffus&eacute;es, partag&eacute;es et v&eacute;rifi&eacute;es gr&acirc;ce &agrave; un protocole sans autorit&eacute; centrale (ou serveur central). Ce sont les noeuds (<i>nodes<\/i>) du r&eacute;seau qui communiquent entre eux et tiennent ce grand registre &agrave; jour. C&rsquo;est ce qui garantit la stabilit&eacute;, la puissance et caract&egrave;re impiratable du r&eacute;seau Bitcoin. Pour y parvenir, il faudrait en effet que les pirates prennent le <a href=\"https:\/\/cryptonews.com\/fr\/exclusives\/attaque-des-51-prendre-le-contr-le-du-reseau-2174\/\">contr&ocirc;le d&rsquo;au moins 51% du r&eacute;seau<\/a>. Beaucoup plus difficile &agrave; faire que dans le cas d&rsquo;un syst&egrave;me avec un serveur central. <\/p><p>Retrouvez plus de d&eacute;finitions cryptos <a href=\"https:\/\/cryptonews.com\/fr\/exclusives\/guide-de-la-terminologie-crypto-1435\/\">dans notre guide<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Photo: iStock\/Stas_VDans le monde des cryptos, vous allez tr&egrave;s vraisemblablement tomber souvent sur le terme &ldquo;pair &agrave; pair&rdquo;. Si vous n&rsquo;&ecirc;tes pas familier avec ce concept informatique, voici quelques explications pour comprendre. Le principe d&rsquo;un r&eacute;seau pair &agrave; pair (ou peer-to-peer en anglais, abr&eacute;g&eacute; aussi P2P) est que les &eacute;changes se font directement entre deux [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5,2],"tags":[44,85,74,71,155],"editors":[400],"sponsored_companies":[],"class_list":["post-31306","post","type-post","status-publish","format-standard","hentry","category-features","category-exclusives","tag-bitcoin","tag-blockchain","tag-crypto","tag-cryptomonnaies","tag-transactions","editors-david-nathan"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u2019est quoi un r\u00e9seau pair \u00e0 pair?<\/title>\n<meta name=\"description\" content=\"Photo: iStock\/Stas_VDans le monde des cryptos, vous allez tr&egrave;s vraisemblablement tomber souvent sur le terme &ldquo;pair &agrave; pair&rdquo;. Si\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?\" \/>\n<meta property=\"og:description\" content=\"Photo: iStock\/Stas_VDans le monde des cryptos, vous allez tr&egrave;s vraisemblablement tomber souvent sur le terme &ldquo;pair &agrave; pair&rdquo;. Si\" \/>\n<meta property=\"og:url\" content=\"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/\" \/>\n<meta property=\"og:site_name\" content=\"Cryptonews France\" \/>\n<meta property=\"article:published_time\" content=\"2019-02-26T14:05:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-26T11:06:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cryptonews.com\/wp-content\/uploads\/sites\/3\/2023\/09\/Main-logo.png\" \/>\n\t<meta property=\"og:image:width\" content=\"680\" \/>\n\t<meta property=\"og:image:height\" content=\"160\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/cimg.co\/news\/31306\/11741\/5c75484ce97ce.jpg\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?","description":"Photo: iStock\/Stas_VDans le monde des cryptos, vous allez tr&egrave;s vraisemblablement tomber souvent sur le terme &ldquo;pair &agrave; pair&rdquo;. Si","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/","og_locale":"fr_FR","og_type":"article","og_title":"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?","og_description":"Photo: iStock\/Stas_VDans le monde des cryptos, vous allez tr&egrave;s vraisemblablement tomber souvent sur le terme &ldquo;pair &agrave; pair&rdquo;. Si","og_url":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/","og_site_name":"Cryptonews France","article_published_time":"2019-02-26T14:05:00+00:00","article_modified_time":"2023-06-26T11:06:57+00:00","og_image":[{"width":680,"height":160,"url":"https:\/\/cryptonews.com\/wp-content\/uploads\/sites\/3\/2023\/09\/Main-logo.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_title":"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?","twitter_image":"https:\/\/cimg.co\/news\/31306\/11741\/5c75484ce97ce.jpg","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"NewsArticle","@id":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/#article","isPartOf":{"@id":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/"},"author":{"name":"giedrius","@id":"https:\/\/cryptonews.com\/fr\/#\/schema\/person\/15b6988f9bc8b76b04039ec26c3e7bba"},"headline":"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?","datePublished":"2019-02-26T14:05:00+00:00","dateModified":"2023-06-26T11:06:57+00:00","mainEntityOfPage":{"@id":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/"},"wordCount":343,"publisher":{"@id":"https:\/\/cryptonews.com\/fr\/#organization"},"keywords":["Bitcoin","Blockchain","Crypto","Cryptomonnaies","Transactions"],"articleSection":["Articles","Exclusives"],"inLanguage":"fr-FR","copyrightYear":"2019","copyrightHolder":{"@id":"https:\/\/cryptonews.com\/#organization"}},{"@type":"WebPage","@id":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/","url":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/","name":"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?","isPartOf":{"@id":"https:\/\/cryptonews.com\/fr\/#website"},"datePublished":"2019-02-26T14:05:00+00:00","dateModified":"2023-06-26T11:06:57+00:00","description":"Photo: iStock\/Stas_VDans le monde des cryptos, vous allez tr&egrave;s vraisemblablement tomber souvent sur le terme &ldquo;pair &agrave; pair&rdquo;. Si","breadcrumb":{"@id":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/"]}],"author":[]},{"@type":"BreadcrumbList","@id":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-un-reseau-pair-a-pair-2939\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/cryptonews.com\/fr\/"},{"@type":"ListItem","position":2,"name":"C\u2019est quoi un r\u00e9seau pair \u00e0 pair?"}]},{"@type":"WebSite","@id":"https:\/\/cryptonews.com\/fr\/#website","url":"https:\/\/cryptonews.com\/fr\/","name":"Cryptonews","description":"","publisher":{"@id":"https:\/\/cryptonews.com\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/cryptonews.com\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/cryptonews.com\/fr\/#organization","name":"Cryptonews France","url":"https:\/\/cryptonews.com\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/cryptonews.com\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/cryptonews.com\/wp-content\/uploads\/sites\/3\/2023\/09\/4.jpg","contentUrl":"https:\/\/cryptonews.com\/wp-content\/uploads\/sites\/3\/2023\/09\/4.jpg","width":1669,"height":874,"caption":"Cryptonews France"},"image":{"@id":"https:\/\/cryptonews.com\/fr\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/posts\/31306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/comments?post=31306"}],"version-history":[{"count":0,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/posts\/31306\/revisions"}],"wp:attachment":[{"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/media?parent=31306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/categories?post=31306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/tags?post=31306"},{"taxonomy":"editors","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/editors?post=31306"},{"taxonomy":"sponsored_companies","embeddable":true,"href":"https:\/\/cryptonews.com\/fr\/wp-json\/wp\/v2\/sponsored_companies?post=31306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}