Bug#853858: /usr/bin/apt-key: cannot add gpg keys due to their large size

[Kim Yeon-Soo]

Thank you. It is hard to search "Singed-By:" option on the forums.


I solved the problem in Synaptic Package Manager by

     menu -> Setting -> Repository -> Authentication -> Import Key File.

I guess it imports the keys into /etc/apt/trusted.gpg.

Using "Signed-By:" option seems better solution than this.