{"id":7876,"date":"2021-09-15T23:17:00","date_gmt":"2021-09-15T20:17:00","guid":{"rendered":"https:\/\/alfacash.blog\/?p=7876"},"modified":"2024-02-19T21:51:19","modified_gmt":"2024-02-19T18:51:19","slug":"public-prive-cles-pourquoi-important-garder-vos-monnaies","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/fr\/2021\/09\/15\/public-prive-cles-pourquoi-important-garder-vos-monnaies\/","title":{"rendered":"Cl\u00e9s publiques et priv\u00e9es : pourquoi est-il important de conserver ses pi\u00e8ces ?"},"content":{"rendered":"

L'entrepreneur technologique et d\u00e9fenseur du Bitcoin Andreas Antonopoulos a une phrase c\u00e9l\u00e8bre : \u00ab Vos cl\u00e9s, votre bitcoin. Pas vos cl\u00e9s, pas votre bitcoin".<\/strong> Il fait allusion \u00e0 l'importance de garder les cl\u00e9s priv\u00e9es de vos portefeuilles de crypto-monnaie sous votre contr\u00f4le total.  <\/p>\n\n\n\n

Maintenant, vous vous demandez probablement ce que sont les \u00ab\u00a0cl\u00e9s\u00a0\u00bb. Si tel est votre cas, vous devez conna\u00eetre les informations ci-dessous.<\/p>\n\n\n\n

Cl\u00e9s publiques et priv\u00e9es<\/strong><\/h2>\n\n\n\n

Tout d'abord, nous devons garder \u00e0 l'esprit que les crypto-monnaies ne sont pas physiques. Ils repr\u00e9sentent une valeur num\u00e9rique li\u00e9e \u00e0 une transaction non d\u00e9pens\u00e9e (ce que nous appelons \u00ab pi\u00e8ce \u00bb). Toutes les transactions sont enregistr\u00e9es en permanence dans un grand livre distribu\u00e9 ou blockchain<\/a>. C'est par consensus de l'ensemble des n\u0153uds (les ordinateurs qui forment le grand livre) que les transactions sont approuv\u00e9es, et pour cela, le syst\u00e8me v\u00e9rifie d'abord les cl\u00e9s publiques et priv\u00e9es de chaque portefeuille.<\/strong><\/p>\n\n\n\n

Par cons\u00e9quent, les transactions de crypto-monnaie sont possibles en utilisant une paire unique de cl\u00e9s cryptographiques ou de cl\u00e9s publiques-priv\u00e9es. Comme l'explique Yan Pritzker dans son livre<\/a> \u00ab\u00a0En inventant Bitcoin\u00a0\u00bb, il est pratiquement impossible pour deux personnes de g\u00e9n\u00e9rer la m\u00eame paire de cl\u00e9s publique-priv\u00e9e car c'est un nombre tr\u00e8s long qui est math\u00e9matiquement li\u00e9.<\/p>\n\n\n\n

\"cl\u00e9s-priv\u00e9es-publiques-crypto-monnaie\"<\/figure><\/div>\n\n\n\n

La paire de cl\u00e9s publique-priv\u00e9e<\/a> est asym\u00e9trique puisque vous ne pouvez chiffrer qu'avec une cl\u00e9 (avec la cl\u00e9 publique) et d\u00e9chiffrer avec l'autre (avec la cl\u00e9 priv\u00e9e). Alors que la cl\u00e9 publique est n\u00e9cessaire pour recevoir des fonds (donc elle peut \u00eatre partag\u00e9e avec d'autres), la cl\u00e9 priv\u00e9e est essentielle pour prouver la propri\u00e9t\u00e9 du portefeuille et d\u00e9penser les fonds.<\/p>\n\n\n\n

Pour r\u00e9sumer : la cl\u00e9 publique serait comme une adresse e-mail que vous pouvez donner pour recevoir de l'argent<\/strong>, tandis que la cl\u00e9 priv\u00e9e serait le mot de passe pour acc\u00e9der \u00e0 ce compte de messagerie et v\u00e9rifier le message (l'argent, dans ce cas).<\/p>\n\n\n\n

Une version abr\u00e9g\u00e9e de la cl\u00e9 publique est une crypto-adresse courante que vous pouvez donner \u00e0 n'importe qui. Il ressemble \u00e0 celui-ci de Le projet de l'eau<\/a>: 3H2hQCAk9Skm8robYQHBX7YB3EqxDU74NX. Bien s\u00fbr, c'est \u00e0 peine un exemple avec une adresse BTC. Dans d'autres blockchains, ils sont un peu diff\u00e9rents. Sur Ethereum<\/a>, par exemple, ils sont comme ceci : 0xf99768862bc8e61ef88849cfdcc8f493aebfc5ff. Sur Monero<\/a>, comme ceci : 453VWT5GEkXGc2J9asRpXpRkjoCGKCJr96rndm2VMe5yECiAcUB3h8pFxZ8YGbmbGmVefwWHPXmLR69Vw1sVNWz5TsFqYbK (plus longtemps, nous savons. Celui-ci est de faire un don \u00e0 WikiLeaks<\/a>, d'ailleurs).<\/p>\n\n\n\n

Phrase germe : la cl\u00e9 du tr\u00e9sor<\/strong><\/h2>\n\n\n\n

Vous savez maintenant \u00e0 quoi ressemble une cl\u00e9 publique, mais o\u00f9 pouvez-vous trouver votre cl\u00e9 priv\u00e9e\u00a0? Eh bien, en g\u00e9n\u00e9ral, les portefeuilles personnels de crypto-monnaie stockent et g\u00e8rent automatiquement les cl\u00e9s publiques et priv\u00e9es des adresses qu'ils g\u00e9n\u00e8rent pour leurs utilisateurs. Pour faciliter la t\u00e2che de tout le monde, les portefeuilles fournissent une phrase de r\u00e9cup\u00e9ration ou une phrase de d\u00e9part, associ\u00e9e aux cl\u00e9s priv\u00e9es. Cette phrase est g\u00e9n\u00e9ralement form\u00e9e de 12 \u00e0 24 mots al\u00e9atoires qui doivent \u00eatre gard\u00e9s secrets.<\/strong><\/p>\n\n\n\n

\"Cl\u00e9s-priv\u00e9es-publiques-secr\u00e8tes\"
Image parPeter Wiberg de Pixabay<\/figcaption><\/figure><\/div>\n\n\n\n

Avec la graine entre vos mains, vous \u00eates le seul et unique \u00e0 pouvoir acc\u00e9der aux fonds. Litt\u00e9ralement, personne d'autre, pas m\u00eame le support de portefeuille ou le crypto-exchange. Personne ne peut geler, manipuler ou censurer aucune de vos transactions. S'il y a un probl\u00e8me avec votre appareil actuel et que vous avez perdu le portefeuille num\u00e9rique, la seule chose que vous aurez \u00e0 faire est de t\u00e9l\u00e9charger n'importe quel portefeuille<\/a> \u00e0 nouveau, sur n'importe quel appareil, et entrez votre phrase de d\u00e9part pour r\u00e9cup\u00e9rer vos fonds.<\/p>\n\n\n\n

Si vous n'avez pas cette phrase de d\u00e9part, cela signifie que l'\u00e9change ou le portefeuille g\u00e8re votre argent en votre nom. Ainsi, ils peuvent, en effet, geler, manipuler, censurer ou m\u00eame perdre vos fonds. <\/strong>C'est pourquoi la phrase d'Antonopoulos : pas vos cl\u00e9s, pas vos pi\u00e8ces. Et vous devez aussi le savoir : si vous perdez vos cl\u00e9s, vous perdrez \u00e9galement vos pi\u00e8ces. Il n'y a pas d'options "J'ai oubli\u00e9 mon mot de passe" ici.<\/p>\n\n\n\n

En raison de tout ce qui pr\u00e9c\u00e8de, il est si important que les utilisateurs prot\u00e8gent et stockent correctement leur phrase de r\u00e9cup\u00e9ration, car c'est la seule cl\u00e9 pour acc\u00e9der \u00e0 leurs fonds. Le perdre pourrait signifier perdre l'acc\u00e8s aux cryptomonnaies<\/a> pour toujours.<\/p>\n\n\n\n

Prot\u00e9ger vos cl\u00e9s priv\u00e9es<\/strong><\/h2>\n\n\n\n


Il est important de se rappeler que toute personne (vous ou d'autres personnes) avec la phrase de d\u00e9part peut acc\u00e9der aux fonds. Ainsi, la graine doit \u00eatre m\u00e9moris\u00e9e et\/ou \u00e9crite sur un morceau de papier<\/strong> et stock\u00e9 dans un endroit s\u00fbr (et priv\u00e9). Il n'est pas du tout recommand\u00e9 d'en faire une sauvegarde num\u00e9rique, telle qu'un document Word, une capture d'\u00e9cran, un e-mail ou quelque chose de num\u00e9rique\u00a0; car il pourrait tomber dans le mains de pirates<\/a>.<\/p>\n\n\n\n

\"Greatest-DeFi-hacker-Poly\"<\/figure><\/div>\n\n\n\n

La garde personnelle des crypto-monnaies conf\u00e8re la souverainet\u00e9 financi\u00e8re \u00e0 leurs propri\u00e9taires, car elle se traduit par un contr\u00f4le total sur leur propre argent. Mais cela exige aussi une plus grande responsabilit\u00e9 individuelle. Si la graine tombe entre de mauvaises mains, l'utilisateur pourrait perdre tout son argent.<\/p>\n\n\n\n

Ce contr\u00f4le total peut cependant offrir des avantages pr\u00e9cieux. <\/strong>Les fonds seront disponibles chaque fois que son propri\u00e9taire en aura besoin, et leurs mouvements ne seront pas enregistr\u00e9s dans une base de donn\u00e9es centralis\u00e9e, et ils ne seront pas non plus associ\u00e9s \u00e0 leur identit\u00e9. En outre, l'utilisateur peut prot\u00e9ger ses fonds comme il le souhaite, envoyer des sommes \u00e9normes avec des frais tr\u00e8s bas dans le monde entier, et il n'aura jamais \u00e0 faire face \u00e0 des obstacles bureaucratiques.<\/p>\n\n\n\n

\u00c9changes d\u00e9positaires et non d\u00e9positaires<\/strong><\/h2>\n\n\n\n

L'une des options les plus populaires pour achat Bitcoin<\/a> et d'autres crypto-monnaies consiste \u00e0 utiliser des plateformes d'\u00e9change en ligne. Il existe actuellement une grande vari\u00e9t\u00e9 de services pour acheter et vendre des crypto-monnaies. Ceux-ci peuvent \u00eatre class\u00e9s en deux cat\u00e9gories : les \u00e9changes sous garde et les \u00e9changes non-priv\u00e9s.<\/p>\n\n\n\n

Les \u00e9changes avec conservation sont les services qui offrent des comptes au lieu de cl\u00e9s. Pour les utiliser, l'utilisateur doit ouvrir un nouveau compte chez eux et r\u00e9pondre \u00e0 ses exigences (fournir des donn\u00e9es et documents personnels, par exemple). Ils peuvent fonctionner comme un portefeuille puisque les clients peuvent y consulter leur solde et effectuer des transactions. Mais ils n'offriront jamais de cl\u00e9s priv\u00e9es personnelles. Au lieu de cela, l'utilisateur n'acc\u00e8de qu'avec un e-mail\/un pseudo et un mot de passe.<\/p>\n\n\n\n

\"Europe-ban-crypto-wallets\"<\/figure><\/div>\n\n\n\n

Lorsqu'ils utilisent des interm\u00e9diaires comme ceux-ci, les utilisateurs renoncent au contr\u00f4le total de leurs fonds. De m\u00eame, ils pourraient \u00e9galement \u00eatre confront\u00e9s au gel de fonds, \u00e0 des confiscations et m\u00eame \u00eatre victimes de fraude<\/a>, en cas de services de garde douteux.<\/p>\n\n\n\n

De leur c\u00f4t\u00e9, les plateformes d'\u00e9change non d\u00e9positaires (comme Alfacash<\/a>) ont les m\u00eames avantages <\/strong>que ceux propos\u00e9s par les services de garde, avec moins d'exposition aux cyberattaques ou aux fraudes. La confidentialit\u00e9 est \u00e9galement plus \u00e9lev\u00e9e pour les utilisateurs, tout en gardant un contr\u00f4le total sur leurs fonds. C'est parce que ces plateformes n'offrent pas de portefeuilles en ligne, mais demandent aux utilisateurs des adresses sous leur contr\u00f4le lors de la n\u00e9gociation.<\/p>\n\n\n\n

Si vous n'avez toujours pas de portefeuille personnel avec une phrase de d\u00e9part appropri\u00e9e, il est temps de v\u00e9rifier comment choisir son premier crypto-wallet<\/a>. Votre ind\u00e9pendance financi\u00e8re en d\u00e9pend !<\/p>\n\n\n\n


Image en vedette par StockSnap \/ Pixabay<\/em><\/p>\n\n\n\n

\n\n\n\n

Vous voulez \u00e9changer Bitcoin et d'autres jetons\u00a0? Vous pouvez le faire de mani\u00e8re non privative de libert\u00e9 <\/em>sur Alfacash<\/a><\/em>! Nous parlons de cela et de beaucoup d'autres choses sur nos r\u00e9seaux sociaux.<\/em><\/p>\n\n\n\n

Twitter<\/a> * T\u00e9l\u00e9gramme<\/a> * Facebook<\/a> * Instagram<\/a> * Youtube<\/a> * Vkontakte<\/a><\/p>","protected":false},"excerpt":{"rendered":"

"Pas vos cl\u00e9s, pas vos pi\u00e8ces". Les cl\u00e9s priv\u00e9es sont essentielles pour atteindre l'ind\u00e9pendance financi\u00e8re dans le monde crypto. D\u00e9couvrez-les ici !<\/p>","protected":false},"author":5,"featured_media":7904,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[48],"tags":[156,43,61,59,405,300,60],"class_list":{"0":"post-7876","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-learn","8":"tag-alfacash","9":"tag-bitcoin","10":"tag-cryptocurrencies","11":"tag-exchanges","12":"tag-private-keys","13":"tag-security","14":"tag-wallets"},"featured_image_src":"https:\/\/alfacash.blog\/wp-content\/uploads\/2021\/09\/03-scaled.jpg","author_info":{"display_name":"Isabel P\u00e9rez","author_link":"https:\/\/alfacash.blog\/fr\/author\/isabel\/"},"yoast_head":"\nPublic and private keys: why is important to keep your coins?<\/title>\n<meta name=\"description\" content=\"\u201cNot your keys, not your coins\u201d. 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