Enlace abajo :-( Bien, si tenemos literalmente perdido todas las monedas (como siempre solo satoshi de todos los 21M BTC), entonces realmente no importa qué. El blockchain no tiene ningún valor. Simplemente empezar de nuevo con una nueva blockchain. @pedro , cuando dice billones de bloques de propuestas son dados a y B, que significa la minería, el grupo ha creado un bloque y se incluye la transacción, y da diferentes bloque de hashes por el cambio de coinbase valor a todos los mineros, a la derecha?? Suponga que este enlace de un nuevo usuario contiene malware.

Hay dos problemas con su enfoque. La segunda es más difícil de resolver que los de la otra.

Problema 1

Mientras me llevaría a 100 millones de años a la fuerza bruta de la clave 1 2 3 4 5 6 7 8 9si conozco a dos tercios de la clave, no es sólo 1/3 del tiempo, pero una raíz cúbica de la época, en el sentido de que en realidad podría ser capaz de adivinar.

Dar a cada uno una parte de la clave sin hacer bruteforce más rápido

  1. En lugar de ello, se generan 3 totalmente al azar cadenas de bytes de largo como la clave. Vamos a llamar a estos R1, R2 y R3.
  2. Vamos a llamar a la clave privada K, y los clientes, C1, C2, y C3.
  3. A C1, se dan R1 y R2 ^ K. (^ es una abreviatura para el XOR)
  4. C2: R2, R3 ^ K
  5. C3: R3, R1 ^ K

Ejemplo: Si C1 y C2 pusieron sus cabezas juntas, se podría combinar R2 y R2 ^ K. Esto es importante, ya que R2 ^ R2 ^ K = K
Requisito de espacio: Dado que n = número de personas, y m = número máximo de personas que se abstienen, usted necesita n!/m!/(n-m)! ciphertexts. Bien para 3 personas, empieza a ser difícil de manejar para 10.

Problema 2

Cuando la generación de la clave, en primer lugar, alguien tiene que conocer la clave privada antes de dividirlo. En otras palabras, se necesita un tercero de confianza. Para evitar esto, usted necesita para hacer algo que se llama Distribuidos de Generación de Claves. No estoy seguro de si esto puede ser hecho por la firma ECDSA. Este papel se ve alentador basado en el resumen, pero no puedo ver el artículo completo.

Multi-firma de transacciones

Esta es mucho más escalable y segura del sistema. Por desgracia, no realmente preparado para el mundo real todavía.

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