MD5和SHA有哪些字符库? [英] What pool of characters do MD5 and SHA have?

问题描述

MD5和SHA仅包含字母数字字符吗? (即，从A到Z，从0到9，还是不包括某些字符?)

Does MD5 and SHA only contain alphanumeric characters? (i.e., from A to Z and 0 to 9, or do they exclude some characters?)

推荐答案

原始格式的MD5和SHA哈希是二进制的，但是它们的常见表示形式是十六​​进制编码的字符串，其中包含字符[a-fA-F0-9].

MD5 and SHA hashes in raw form are binary, however their common representation is a hex-encoded string, which contains characters [a-fA-F0-9].

因此，如果这是您的意思，则字符"G-Z"，"g-z"被排除".

So if this is what you meant, then characters G-Z, g-z are "excluded".

另一种较不常见的表示形式是Base64编码[0-9a-zA-Z +/].

Another, less common, representation is Base64 encoding [0-9a-zA-Z+/].

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