efu文件怎么看，efu文件怎么打开？

.efu

文件类型：Encryptafile Public Key File

扩展名为.efu的文件是一个编码文件。

文件说明：

Public Key used to authenticate an encrypted Encryptafile (.EFL) file; contains a hexadecimal representation of the public key; made available to the public and used along with the Private Key (.EFR) file to verify a digitally signed file.

The length of a public key file must be greater than or equal to 16 bits, and less than or equal to 7128 bits..efu

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来源：.efu文件