How to add official repositories & resolve invalid Signature error in Kali Linux
How to add official repositories in sources.list and resolve invalid signature ED444FF07D8D0BF6 error in apt-get update.
apt-get update
echo "deb http://http.kali.org/kali kali-rolling main non-free contrib" | sudo tee /etc/apt/sources.list
echo "deb-src http://http.kali.org/kali kali-rolling main non-free contrib" | sudo tee /etc/apt/sources.list
gpg --keyserver hkp://keys.gnupg.net --recv-key ED444FF07D8D0BF6
gpg -a --export ED444FF07D8D0BF6 | apt-key add -