Preguntas con etiqueta 'transaction-malleability'

Hay esquemas que crear una clave secreta compartida, sin un partido que jugar ningún papel en la transacción. @RedGrittyBrick Mi problema actual es que no sé en base a qué algoritmo que necesito para convertir un ...
27

¿Qué es un bitcoin?

Así que yo entiendo como blockchains de trabajo[1]. Entiendo lo de la prueba-de-trabajo[2]. Y puedo entender cómo funcionan juntos. También entiendo (o al menos eso creo yo :) ¿transacciones trabajo (Un bloque puede contener datos arbitrarios dentro de ella, por lo que puede contener un mensaje firmado por Una que él transferencias 5 btc a B). Pero, ¿de dónde el bitcoin en sí caben en esta imagen? Es un a calcular el número de todos los tiempos, de modo que si Un da 1 btc a B, entonces si quiero confirmar, puedo comprobar que Una ...
13 sept. 2017 14:17:03
27

Qué partes de hash SHA-256 de un ASIC miner realmente, y lo que sigue siendo un CPU de trabajo?

Sé que ASIC no realizar transacciones ledgering, es una CPU de trabajo. También sé que SHA256 consta de dos partes lógicas: un resumen de la función, lo que reduce cualquier gran mensaje, como ~1MB, bloque de 256 bits chunk, y un hash criptográfico, que toma y devuelve exactamente 256-bits por iteración. Qué tanto de estos SHA256 partes se realizan en ASIC, o de cifrado sólo uno? ...
21 ago. 2019 17:42:19
25

¿Cuál es la strMessageMagic buenas?

El bitcoin mensaje de magia, "Bitcoin Firmado Mensaje:\n", se define: https://github.com/bitcoin/bitcoin/blob/203632d20b3107009f45fae56cc3f7d828b16660/src/main.cpp#L80 Sé que es utilizado como parte de la firma de los mensajes para demostrar que eran enviados de los propietarios de determinadas claves privadas, como se detalla a continuación: ¿cuáles son las pautas de seguridad para el uso de la Señal característica del Mensaje?. Lo que no sabemos, sin embargo, es lo bueno que es este mensaje de magia? ¿H ...
2 abr. 2010 13:23:13
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