Using GPG and KGpg

Using the command-line gpg client

• Encrypt:

gpg -c myfile.txt

• Decrypt:

gpg -d myfile.txt.gpg > myfile.txt

Using KGpg

• You just need to emerge kde-apps/kgpg.
• From Dolphin, you can then encrypt file with Right Click -> Encrypt File. Then for a symmetrical encryption (simple password), select Options then check "Symmetrical encryption" and uncheck "ASCII armored encryption".
• To decrypt, Right Click -> Open with KGpg.