Encrypting/Decrypting using gpg

generate key (Name it Billy)  Don't create a password if you want to script the decryption
gpg --gen-key

display a list of keys in your key ring
gpg --list-keys

Export public key
gpg -a --export Billy > public.key

Export private key
gpg -a --export-secret-keys Billy > private.key

Remove keys from keyring

First public
gpg --delete-keys Billy

then private
gpg --delete-secret-key Billy


On the computer doing the encrypting:

Install gpg
Import the public key
gpg --import public.key

Trust the public key
To trust the key, run:
	gpg --edit-key Billy

GPG will output some information, and show a line like:
	trust: undefined     validity: unknown

You will be at a console, and you have to type "trust":
	Command> trust 
	Please decide how far you trust this user to correctly verify other users' keys
	(by looking at passports, checking fingerprints from different sources, etc.)

	  1 = I don't know or won't say
	  2 = I do NOT trust
	  3 = I trust marginally
	  4 = I trust fully
	  5 = I trust ultimately
	  m = back to the main menu

	Your decision? 5
	Do you really want to set this key to ultimate trust? (y/N) y


On teh computer doing the decrypting:
Import the private key:
gpg --import private.key


Encryption/Decryption process:

To encrypt a file, use:
	gpg -r Billy --output OUTFILE.gpg --encrypt INFILE

To decrypt a file, use:
	gpg -r Billy --output OUTFILE --decrypt INFILE.gpg