JGit GPG Bouncy Castle on Windows - pubring.kbx not generated with GnuGP

[Phillipus]

I wonder if anyone knows the answer to this one, related to GPG key generation.

I'm integrating GPG signing of commits with JGit into our RCP app and testing with GPG keys. I have successfully created GPG keys using GnuGP on Linux and Mac but not on Windows. Using Windows GnuGP a pubring.kbx is not generated.

The command I use is:

gpg --quick-generate-key "MyName <[email protected]>" rsa4096 sign never

BouncyCastleGpgKeyLocator requires the pubring.kbx file but on Windows I only have a trustdb.gpg file as well as a private-keys-v1.d directory and a public-keys.d directory.

Is this some new format not yet supported in BC/JGit or is something else going on?

[Phillipus]

After a conversation with Grok I discovered that since GnuPG 2.4.1 GnuGP on Windows may default to using the use-keyboxd option, which relies on a SQLite-based backend (pubring.db in ~/.gnupg/public-keys.d/) instead of creating a pubring.kbx file. See here and here.

In order to workaround this one can create an empty ~/.gnupg directory first or if a ~/.gnupg/common.conf file exists edit it so that
the use-keyboxd entry is removed or commented out like #use-keyboxd

If this becomes the default format going forward I wonder if this will be supported in BC/JGit?

Edit - see eclipse-egit/egit#12