A hash is the result of a cryptographic function that takes an arbitrarily sized string of data, performs a mathematical encryption function on it, and returns a fixed-size string.
哈希是一种加密功能所获得的结果，这种加密需要获取任意大小的字符串数据，并用算法对其进行加密，然后返回一个固定大小的字符串。
The following figure shows the search results for the string "encryption" with percentage rankings for each result.
下图显示了字符串“ encryption ”的搜索结果，并且带有每个结果的百分比排名。
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