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Manage OpenPGP keys.
Sign, verify, encrypt, and decrypt files and email.
Read and send authenticated and encrypted messages.
Port the GnuPG on Mac.
Use the OS X Service menu to encrypt, decrypt, sign or verify (OpenPGP) files and text.
Edit GnuPG's options file via pref pane.
Install GnuPG easily.
For small workgroups of select individuals, GPGTools offers an easy way to secure communications with any e-mail account.