Added Link to DidiSoft OpenPGP Library product line

[didisoft]

Added link to DidiSoft OpenPGP Library product line. DidiSoft OpenPGP products have more than 14 years in production and are fully compatible with RFC 4880 and RFC 6637.

[teythoon]

Hi, thanks for your submission.

First of all, could you please insert your link so that the list is sorted?

Second, reading https://didisoft.com/2024/10/08/openpgp-updates-librepgp-and-rfc-9580/ it seems to me that you are not implementing RFC9580 which is OpenPGP, but are focusing on LibrePGP instead. As this site is about OpenPGP, do you think it is appropriate to add DidiSoft to the list?

[hko-s]

Just a quick remark about your text, in case you are not fully aware of the status of RFC 9580 and PQC in the OpenPGP ecosystem

The most widespread implementation that supports RFC 9580 at the moment is Sequoia PGP.

There are currently at least 7 implementations that support RFC 9580 (a few are in earlier development stages, but many are production-grade). These implementations are shown to interoperate in the OpenPGP interoperability test suite (see the tests marked "RFC9580").

And with no disrespect to other participants in the space: Among the actors who are going to roll out RFC 9580 formats soon (via both OpenPGP.js and GopenPGP), Proton certainly has one of the biggest OpenPGP user bases in the world.

Regarding PQC, most of these 7 implementations are bound to roll out support for draft-ietf-openpgp-pqc soon (multiple of them already implement the format in preview versions). My understanding is that draft-ietf-openpgp-pqc is close to finalization.
FWIW, active stakeholders in that draft include Proton (again, one of the largest actors in the space) and the German BSI.