Спасибо, просто пробовал. Оружейная 0.96.3.99 НИК1 работает с Bitcoin ядро 0.15.1, как Сатоши-переменной datadir`. @Г. Максвелл, скажем два адреса транзакционных много в прошлом, их следующей Техас будет проверена только на 20% из узлов (или, для каждого узла, их вероятность проверки Техас составляет 20%). Если в этот раз их Техас стать злобным, протокол будет просить 20% проверки узлов (после выяснения Техас действительно вредоносный), чтобы отправить сообщение, чтобы остальные 80% узлов до начала проверки на Техас. Они упадут, что TX или блоки, содержащие, что Техас, тем самым обеспечивая безопасность. Я думаю, что вы ошибаетесь. Если значение хэш-Шахтера, равный совокупному курсу остальной части сети, что Шахтер будет в среднем половину блоков, независимо от сложности изменений. Кроме того, имейте в виду, что сложность меняется не более чем на коэффициент 2 в 2016 блоков (если я правильно помню), так там не качается так драматично, как вы говорите.

Биткоин использует SHA256 с последующим хэш-функция ripemd-160, который я буду обобщенно называть HASH160.

Хорошие хэши имеют 4 Свойства:

  1. это легко вычислить значение хэш-функции для любого заданного сообщения
  2. невозможно создать сообщение, которое содержит данный хэш
  3. невозможно изменить сообщение, не изменив хэш
  4. невозможно найти два разных сообщения с одинаковым хешем

Источник: Википедия

Мы заботимся о свойства 1, 2 и 3. Мы знаем, что собственность 1-правда о HASH160 - мы можем сравнивать его. Если свойства 2 или 3 были ложные, то вы могли бы украсть биткоины. Не хорошо.

Это хорошо, что этот скриптовый язык настолько гибок, и позволило бы людям переключаться на другой адрес типа, не заставляя, чтобы все обновить.

Это тока биткоин скрипт сделки:

 OP_DUP OP_HASH160 09432ab39083b5098b6f09432ab39083b5098b6f OP_EQUALVERIFY OP_CHECKSIG

Вот как это может измениться, если HASH160 были сломаны:

OP_DUP OP_HASH256 09432ab39083b5098b6f09432ab39083b5098b6f09432ab39083b5098b6f826496 OP_EQUALVERIFY OP_CHECKSIG

Обратите внимание, что мы поменялись HASH160 для HASH256. Или, предполагая, что оба были сломаны:

<по умолчанию> OP_CHECKSIG

Теперь мы полностью отказавшись от хэш-функции и указав ключевые уровнем явно. Однако, это сделает биткойн-адреса около ста знаков.

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