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GnuPG 2.3.0 Is Released With New Default Public Key Algorithms, A New Key Daemon And More

Submitted by Roy Schestowitz on Sunday 11th of April 2021 03:38:16 PM Filed under
Software
Security

GnuPG is the de-facto standard for encrypted e-mail, and to some degree encrypted instant messages, within the free software world. Most FOSS e-mail software has built-in support or plugins for it. It is also used to sign software releases, ISO images for GNU/Linux distributions and a whole lot more. Nobody outside the FOSS community uses it or cares about it, which is a bit sad.

GnuPG 2.3.0 has quite a few improvements over previous versions. It now comes with a still experimental key database daemon that uses a SQLite database to store the keys. It can be enabled by adding use-keyboxd to $HOME/.gnupg/gpg.conf. There is a new separate configuration file for it called $HOME/.gnupg/gpgsm.conf. This daemon makes key look-ups much faster.

There's also a new tpm2d daemon for physically binding keys to a machine. You can read more about it in a blog post on gnupg.org titled Using a TPM with GnuPG 2.3. Most newer laptops in the upper price range come with a TPM module. Desktop computers tend to come with a empty motherboard header where one can be installed, so this is mostly useful if you have a fairly new high-end laptop or you are willing to buy a TPM module.

New GnuPG keys are now, by default, created with the ed25519/cv25519 public key algorithms. Similarly, AES is now the new last resort cipher preference instead of 3DES.

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