kgpg 4:4.5.90-0ubuntu1 (amd64 binary) in ubuntu natty

 Kgpg manages cryptographic keys for the GNU Privacy Guard, and can encrypt,
 decrypt, sign, and verify files. It features a simple editor for applying
 cryptography to short pieces of text, and can also quickly apply cryptography
 to the contents of the clipboard.
 .
 This package is part of the KDE utilities module.