Questions avec Tag 'miner-configuration'

Trouver le plus court chemin inutilisé est assez différent que de trouver le plus long utilisé, de l'OMI. Ressemble OpenCoin personnes parrainées sont downvoting cette véritable question. :) Les gens q ...
37

Comment authentification des transactions entre l'acheteur et le vendeur recherchez?

Je suis nouveau à la cryptographie et aimerais comprendre comment une signature numérique fonctionne entre un acheteur et un Bitcoin vendeur. Comment authentification des transactions entre l'acheteur et le vendeur recherchez? Veuillez expliquer plus en détail ici cette formule que j'ai trouvé ici: X '= (X + H (X || C) * G) [avec H une fonction de hachage, || concaténation, et G le secp256k1 générateur de point d'] Comment puis-je comprendre cette formule, c'est l'échange de valeurs entre l'acheteur et le vendeur? Peut-être ...
28 juil. 2015 à 17:46:18
31

Un hachage SHA256 être utilisé comme un ECDSA clé privée?

Est-il possible de mapper un mot de passe directement à un Bitcoin clé privée à l'aide de son hachage SHA256? Je me souviens avoir lu quelque part que tous les 256 bits, les valeurs sont valables ECDSA clés privées. Si oui, comment puis-je m'assurer que la valeur de hachage est valide, ou est-il une autre manière canonique de la cartographie d'un mot de passe à une clé privée? ...
24 déc. 2011 à 04:26:11
29

Peut PUSHDATA/OP_RETURN être utilisé pour briser un sentier de transactions de façon permanente?

J'ai lu le wiki Bitcoin sur la façon dont le protocole Bitcoin n'a pas d'adresse "De" et la chose la plus proche à partir de l'adresse est un "précédemment adresse de réception". L'article procède ensuite à montrer une transaction qui rompt Bitcoin de la chaîne d'explorateurs: 54fabd73f1d20c980a0686bf0035078e07f69c58437e4d586fb29aa0bee9814f C'est en effet vrai. Basé sur le Web des explorateurs, tels que blockchain.com et BlockCypher impossible de résoudre l'adresse d'Entrée. Je vois dans la transaction de détails que le tx créateur a placé un PUSHD ...
6 mars 2011 à 20:16:51
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