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SHA2 - 如果你有《文摘》和《关键人物》的话,为什么很难(实际上不可能不使用新兵)收回信息。
原标题:SHA2 - Why is it difficult (actually impossible without using brute-force) to recover the message if you have the Digest and the Key

我审视了沙阿2在沙里的执行情况,认为它使用一些缺省钥匙进行洗.。 一旦知道关键内容并知道摘要,便有可能重新阅读平原案文? http://en.wikipedia.org/wiki/Preimage_attack”rel=“nofollow”http://en.wikipedia.org/wiki/Preimage_attack

我的直观指出,由于块面积(投入规模)为512比,产出规模为256比比值。 也就是说,作为良好的洗衣功能(加密),该功能应当是多种功能(不可改变)。 (19) 这与功能不可撤销(一至一)的环形层的要求相反。 iii

就我所知,这一要求是随机发挥多种功能!

最佳回答

即便是同布鲁特部队一样,也不可能收回某个 has的平原案文,因为有许多案文描绘了同一个非轨道钥匙(对N的任何价值)。 也就是说,有不同的信息具有相同的消化价值。

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