apt-get update提示gpg错误

提示信息：

获取:1 http://mirrors.ustc.edu.cn/kali kali-rolling InRelease [41.5 kB]
错误:1 http://mirrors.ustc.edu.cn/kali kali-rolling InRelease
  Sub-process /usr/bin/sqv returned an error code (1), error message is: Missing key 827C8569F2518CC677FECA1AED65462EC8D5E4C5, which is needed to verify signature.
已下载 41.5 kB，耗时 7秒 (5,756 B/s)
正在读取软件包列表... 完成
W: 校验数字签名时出错。此仓库未被更新，所以仍然使用此前的索引文件。GPG 错误：http://mirrors.ustc.edu.cn/kali kali-rolling InRelease: Sub-process /usr/bin/sqv returned an error code (1), error message is: Missing key 827C8569F2518CC677FECA1AED65462EC8D5E4C5, which is needed to verify signature.
W: 无法下载 http://http.kali.org/kali/dists/kali-rolling/InRelease  Sub-process /usr/bin/sqv returned an error code (1), error message is: Missing key 827C8569F2518CC677FECA1AED65462EC8D5E4C5, which is needed to verify signature.
W: 部分索引文件下载失败。如果忽略它们，那将转而使用旧的索引文件。

需要更新密钥了

下载：

wget http://kali.download/kali/pool/main/k/kali-archive-keyring/kali-archive-keyring_2025.1_all.deb

解压：

 dpkg -i kali-archive-keyring_2025.1_all.deb

查看刚下载的gpg文件：

ls -l /usr/share/keyrings/kali-archive-keyring.gpg

gpg --show-keys /usr/share/keyrings/kali-archive-keyring.gpg 

apt-get update