Daniel Kahn Gillmor via Gnupg-users [2019-08-01T09:27:45-04] wrote: > Here's one use case (i've got others if you want): > > * You have my OpenPGP certificate (with userid with e-mail address), > but it is not published in full publicly because i do not want people > to be able to find anything related to my e-mail address online. > > * It has an encryption-capable subkey "X" that expires in 1 year, which > i use to be able to have deletable messages. I will destroy the > secret component when X expires. > > * As the year draws to a close, i create a new subkey "Y" and i attach > it to my OpenPGP certificate, and i push the updated certificate to > an abuse-resistant keystore (like keys.openpgp.org), again declining > to allow it to publish my e-mail address. > > * After the expiration of "X", you want to send me an encrypted mail > (as is your habit when mailing me). You follow best practices and > refresh your keyring (fetching certificate updates by primary key > fingerprint) from a public, abuse-resistant keystore. Does your > OpenPGP implementation learn about "Y" when it pulls in the update? > It should.
To me this sounds very relevant use case and adds one more feature to the general OpenPGP system. I hope future implementations support exporting and importing (merging) also partial key block data. -- /// OpenPGP key: 4E1055DC84E9DFF613D78557719D69D324539450 // https://keys.openpgp.org/search?q=tliko...@iki.fi / https://keybase.io/tlikonen https://github.com/tlikonen
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