Hello, importing to R2mail2 is working *without* changing expiration dates, if key is exported from GnuPG-2.1.11...
"Converting-way": Export GnuPG-1.4.23(GPGkeys/Win7) > Import GnuPG-2.1.11(Win7) > Export GnuPG-2.1.11(Win7) > Import R2mail2(Android-8.1) > works faultless >> Exporting (older) RSA keys should be independent from GnuPG version 1.4x >> or 2.2x, isn't it? > For each import/export operation you're asking about (both successes and > failures), could you give the following information clearly: > * Are you exporting secret keys? > or exporting public keys? RSA-4096 keypair secret + public (1 main key C, 3 subkeys for S/A/E) > * where were the secret keys originally created? (on what program does > the original export happen?) GPGkeys with GnuPG-1.4.23(Win7) > * which program is doing the import? R2mail2(Android-8.1) > * does the program doing the import modify the OpenPGP certificate in > any way? It seems to modify expiration date... > it is not normal for the primary key to be marked as > authentication-capable ("A"). If you have a tool that is doing that, > please report back what tool that is, on what platform and what version! Keys with this structure are created with GPGkeys (part of GPGshell for Windows v3.78) and GnuPG-1.4.23, all included in Sebastians's GnuPG-Pack. http://www.rose-indorf.de/gnupgpack/ Example: Geheimer Schlüssel ist vorhanden. pub 4096R/C02860E1 erzeugt: 2018-11-13 verfällt: niemals Aufruf: SCA Vertrauen: uneingeschränkt Gültigkeit: uneingeschränkt sub 4096R/37488B7B erzeugt: 2018-11-13 verfällt: niemals Aufruf: E [ uneing.] (1). test <test@on.yourweb> gpg> In my lightweight opinion there must be issues while creating (SCA) and exporting (date) those keys with GPGkeys/GnuPG-1.4.23(Win7)!? Maybe time to change GnuPG setup to newer versions 2.1x or 2.2x... But GPGrelay is needed... Thanks for help and the constructive hint for exporting with GnuPG-2.x. Pictures will be included in posts in the future :) Best regards, Chris _______________________________________________ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users