Seahorse is a Gnome front end for GnuPG, the GNU Privacy Guard program. It is a tool for secure communications and data storage. Data encryption and digital signature creation can easily be performed through a GUI and Key Management operations can easily be carried out through an intuitive interface.
GPassguard is a GTK+ frontend to the *PassGuard suite, which manages passwords in an encrypted file so that you only have to remember one. It uses the PassGuard Framework and can be interfaced with any kind of encryption via a plugin system. It allows you to copy passwords to the clipboard.
fpwdman manages a file of passwords that is accessed by one master passphrase. It can import and export password files and makes it possible for encrypted password files to easily be transferred across operating systems. It supports multiple password files, which could be used when a number set of system administrators share a site-wide file of passwords for common tasks, while each maintaining a file of personal passwords. It also exports and imports password files to and from plain text and optionally uses user-generated random entropy. The source includes two command lines tools to encrypt and decrypt: ensbc and desbc.
alph implements and analyzes historical and traditional ciphers and codes, such as polyalphabetic, substitutional, and mixed employing human-reconstructable algorithms. It provides a pipe filter interface in order to encrypt and decrypt block text to achieve transparency. The program is meant to be used in conjunction with external programs that transfer data, resulting in transparent encryption or decryption of information. The program can thus be used as a mail filter, IRC filter, IM filter, and so on.
wxSFTP aims to be a simple, easy-to-use, and portable SFTP client. "Simple" means that the program will have only the main features needed. The structure consists of a two panel window, one for the local filesystem and another for the remote filesystem. To be easy to use the program is a graphical client that will be HIG compliant.
gSTM, the Gnome SSH Tunnel Manager, is a front-end for managing SSH-tunneled port redirects. It stores tunnel configurations in a simple XML format. The tunnels, with local and remote port redirections, can be created, deleted, modified, and individually started and stopped through one simple interface. It is useful for anyone wanting to securely access private services over an encrypted tunnel.