@Марч, конечно, Дэн Камински не тратить 4 месяца всего лишь пытаюсь доказать, что протокол не застрахован от двойной траты и надежная против 51% атаки. Там должно быть больше вещей, которые он пытался. Какие хаки были он пытается добиться? У вас есть две видеокарты с автоматическим переключением? Что-то подобное от Nvidia Оптимус. ответ бржец ниже-хорошее решение. Я позволил ему скопировать его на другой вопрос, взять кредит Сейчас я знаю только цветных монет биткоин, контрагент, Эфириума, NXT, и пыл. Вы можете думать таким образом с любыми двумя валютами. Предположим, я хочу обмен индийских рупий к доллару США и на тот момемнт я могу обменять свои 60 рупий за 1 доллар США, валютный курс изменился с 30 рупий=1 доллар США. Криптовалюты также валют и их цен являются производными от спроса и предложения, так же как и других валют.

Подпись создается биткоин-клиент на Qt всегда могут быть расшифрованы (в base64) к 65-байтовый массив. Этот массив кажется (по https://github.com/bitcoin/bitcoin/blob/master/src/key.cpp#L217) должен содержать заголовок байт, 32-разрядный R часть и 32-байтовое часть.

Я извлек некоторые (Р,С) пар из некоторых ECDSA сигнатуры, закодированных в формате Der. Я нашел, что R и S Не обязательно из 32 байт. Иногда они могут быть 33 байт. Может кто-нибудь сказать мне, почему подпись, созданную на Qt клиент всегда 65 байт, или является ли это ОК, чтобы преобразовать оба R и S в 32-байтовый массив? Спасибо.

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