Sascha Tayefeh's Homepage

Batch decrypting multiple files using a wildcard is as simple as:

echo thisismypassphrase|gpg --passphrase-fd 0 --decrypt-files *.gpg

And mind the lack of spaces right and left of the pipe

Ok, all PGP keys are strong. However, here is some advice on how to create good keys:

1. $ gpg –gen-key –enable-dsa2
2. Select (1) DSA and Elgamal (default).
3. Use 3072 as keysize for DSA keys.
4. Use 4096 as keysize for ELG-E keys.
5. Continue at will until key generation is finished.
6. gpg –edit-key Key-ID
7. showpref
8. setpref AES256 TWOFISH AES192 AES SHA256 SHA512 RIPEMD160 ZIP BZIP2
9. save
10. ALWAY CREATE A REVOKE CERTIFICATION IN CASE YOU LOOSE YOUR PASSPHRASE:
    gpg –gen-revoke Key-ID > Key-ID.revcert.asc in der Konsole eingeben

• Main Operations:

	gpg --list-keys
	gpg --keyserver hkp://[YOURKEYSERVERURL] --send-keys Key-ID
	gpg -ao Key-IDpubkey.asc --export Key-ID
	gpg -o Key-IDseckey --export-secret-keys Key-ID
	gpg --import Keyfile.asc
	gpg --keyserver hkp:[YOURKEYSERVERURL] --search-keys "User Name"
	gpg --fetch-keys URL
	gpg --recv-keys Key-ID

• Change passphrase:

1. gpg –edit-key Key-ID
2. passwd
3. save

• Cleanup (remove unused stuff):

1. gpg –edit-key Key-ID
2. clean
3. save

• Revoke:

1. gpg –edit-key Key-ID
2. key n (if only subkeys need to be revoked)
3. revkey

BTW, useful stuff:

• Commandline GnuPG (also for Windows)
• A Good Windows GUI: GnuSHELL
• Awesom Firefox Plugin (makes PGP with Webmail etc easy): FireGPG