Kaliでapt-getを更新しようとすると署名が正しくありません。

Kaliでapt-getを更新しようとすると署名が正しくありません。

以下を実行しようとすると、誤った署名エラーが発生しますapt-get update

Ign:1 http://dl.google.com/linux/chrome/deb stable InRelease

Hit:2 http://dl.google.com/linux/chrome/deb stable Release 

Hit:4 https://download.sublimetext.com apt/dev/ InRelease                      

Hit:5 http://deb.i2p2.no unstable InRelease                         

Get:6 http://ftp.yzu.edu.tw/Linux/kali kali-rolling InRelease [30.5 kB]

Err:6 http://ftp.yzu.edu.tw/Linux/kali kali-rolling InRelease
  The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
Reading package lists... Done
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://ftp.yzu.edu.tw/Linux/kali kali-rolling InRelease: The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
W: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease  The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <[email protected]>
W: Some index files failed to download. They have been ignored, or old ones used instead.

なぜこれが起こるのですか?どうすれば解決できますか?

ベストアンサー1

すべて:https://twitter.com/kalilinux/status/959515084157538304、アーカイブされたキーリングパッケージが古い。これを行う必要があります(root):

wget -q -O - https://archive.kali.org/archive-key.asc  | apt-key add

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