Encrypted GPG files

Werner Koch wk at gnupg.org
Fri Feb 21 18:38:23 CET 2020


Thanks for your analysis; I have one additional comment:

On Thu, 20 Feb 2020 23:28, Ángel said:

> I suspect that the problem may not actually be the packet format, but
> something else presented by the same client that is choosing new format
> (e.g. it could be choosing IDEA as cipher).

gpg support IDEA so that is can't be the problem.  A more likely problem
with older clients is that it does not support the MDC checksub we use
for nearly 20 years.

An easy test is to use the option --ignore-mdc-error for just this one
message and if that works, asking the communication partner to update
their software to something from the millenium.


Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
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