This leaves the cryptanalyst with a file that contains only the two original files XORed against each other.

这就只剩下了一个文件，只包含对彼此异或两个原始文件密码分析。

youdao

In these attacks, if the cryptanalyst knows the file type, then he can use knowledge of header formats to guess at the key stream used to encode the file.

在这些袭击中，如果知道密码分析的文件类型，那么他可以使用头格式的知识来猜测用于编码文件的密钥流。

youdao