[Citation needed]
Seriously why would gov use pgp? They would be the last group i would expect to use something like PGP.
Source: I worked two years on GnuPG, which is certified VS-NfD: https://de.wikipedia.org/wiki/Geheimhaltungsgrad
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Source: I worked two years on GnuPG, which is certified VS-NfD: https://de.wikipedia.org/wiki/Geheimhaltungsgrad