how to decrypt glpi key file?

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I found a list of directories and among them and glpi .key file, I searched and saw that there are some public scripts with which you can decrypt the contents of the file depending on the version of glpi, I was trying but none works, I do not know exactly if it is because the version of glpi is not vulnerable or that the script does not work well, have you tried to decrypt any of these files before? if so, could you share the script, combination of commands or tool that worked for you?