How do I import my PPA signing keys from a host into a virtual machine?

Question

Please, give me some help:
How can I export PGP keys I used for registration on PPA and then import in virtual machine's Ubuntu?
Please, help me.

Answer 1

This assumes you can copy-and-paste between the host and the virtual machine guest; it's easier than setting up sharing between the two, and more secure than emailing your private key to yourself, leaving key files lying around, etc.

1. Host AND VM: Open a terminal, and sudo apt-get install xclip (a small tool to copy and paste to the clipboard from the command-line)
2. Host: Type gpg --list-keys and select the 8-letter "pub" key you used for PPA signing, e.g. if the output is pub 2048D/ABCD0123 2012-05-02, you want ABCD0123.
3. Host: Type gpg -a --export ABCD0123 | xclip
4. VM: Type xclip -o | gpg --import, to add your public key.
5. Host: Type gpg -a --export-secret-key ABCD0123 | xclip
6. VM: Type xclip -o | gpg --allow-secret-key-import, to add your private key.

That's it!

Answer 2

Have a look here and/or here.