{"id":31376,"date":"2019-03-27T10:57:00","date_gmt":"2019-03-27T10:57:00","guid":{"rendered":"https:\/\/fr.cryptonews.com\/?p=31376"},"modified":"2023-06-26T11:06:57","modified_gmt":"2023-06-26T11:06:57","slug":"c-est-quoi-la-multi-signature-3105","status":"publish","type":"post","link":"https:\/\/cryptonews.com\/fr\/exclusives\/c-est-quoi-la-multi-signature-3105\/","title":{"rendered":"C\u2019est quoi la multisignature?"},"content":{"rendered":"<p><sub>Photo: iStok (955988522)<\/sub><\/p><p>La <b>multisignature<\/b> (ou multisig) est un terme que vous croiserez souvent dans la cryptosph&egrave;re. Voici donc une explication de ce concept.  <\/p><p>Le principe de la multisignature est tr&egrave;s simple: il permet de faire signer de fa&ccedil;on num&eacute;rique un seul document &agrave; un groupe d&#8217;utilisateurs. Pour autoriser une transaction sur le r&eacute;seau Bitcoin avec la multi-signature, il faut plus d&#8217;une cl&eacute;, alors que les transactions standards sont de type transactions &agrave; signature unique.<\/p><p>La multisignature est tr&egrave;s utilis&eacute;e dans le transfert d&rsquo;argent au sein de petits groupes. Elle &eacute;vite qu&rsquo;un seul membre se retrouve avec les pleins pouvoirs en r&eacute;partissant au contraire la capacit&eacute; de validation d&rsquo;une transaction. <\/p><p>Imaginons par exemple un groupe de cinq personnes. La multisignature pourra &ecirc;tre utilis&eacute;e dans le cas o&ugrave; il faut au moins trois personnes pour valider une transaction. Une fois que trois des cinq membres de ce groupe ont autoris&eacute; ou &ldquo;sign&eacute;&rdquo; la transaction, celle-ci peut bien avoir lieu. <\/p><p>On r&eacute;alise tout de suite l&rsquo;importance de ce proc&eacute;d&eacute; qui permet de diviser le pouvoir. En effet, les arnaques et malversations dans le monde des cryptos sont nombreuses. En &eacute;vitant de donner trop de pouvoir &agrave; une seule personne, on diminue le risque de fraude. <\/p><p>Prenons l&rsquo;exemple d&rsquo;une soci&eacute;t&eacute; qui ne souhaite pas qu&rsquo;un seul de ses employ&eacute;s ait acc&egrave;s au mot de passe de son portefeuille qui contient tous les BTC (ou une grande partie). On peut imaginer l&rsquo;utilisation d&rsquo;une multisignature qui ferait en sorte que toute transaction sur ce portefeuille requi&egrave;re l&rsquo;approbation de deux autres employ&eacute;s.<\/p><p>Si le protocole Bitcoin est infaillible et incorruptible, rien n&rsquo;est moins s&ucirc;r en ce qui concerne la nature humaine. Alors vive le multisig! <\/p><p>D&eacute;couvrez <a href=\"https:\/\/cryptonews.com\/fr\/exclusives\/guide-de-la-terminologie-crypto-1435\/\">plus d&rsquo;expressions et de vocabulaire cryptos<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Photo: iStok (955988522)La multisignature (ou multisig) est un terme que vous croiserez souvent dans la cryptosph&egrave;re. Voici donc une explication de ce concept. Le principe de la multisignature est tr&egrave;s simple: il permet de faire signer de fa&ccedil;on num&eacute;rique un seul document &agrave; un groupe d&#8217;utilisateurs. Pour autoriser une transaction sur le r&eacute;seau Bitcoin avec [&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":[44,306,90],"editors":[400],"sponsored_companies":[],"class_list":["post-31376","post","type-post","status-publish","format-standard","hentry","category-features","category-exclusives","tag-bitcoin","tag-fraude","tag-portefeuille","editors-david-nathan"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>C\u2019est quoi la multi-signature?<\/title>\n<meta name=\"description\" content=\"Photo: iStok (955988522)La multisignature (ou multisig) est un terme que vous croiserez souvent dans la cryptosph&egrave;re. 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