I want to use GPG on Raspberry but need support for older keys (RSA/IDEA/CAST) from PGP 2.6. I read for additional modules for GPG which support these algorithms like this:


But not sure whether this will work on Raspbian/ARM because of incompatible or missing libraries or other reason.


The linked website provides a source package. The instructions will build the source package.

Closer examination of the source package reveals that the building process will try to download a file called idea.c.gz and compile it.

This will also work on the Pi, since the code (idea.c) is written in portable C without assembler.

| improve this answer | |
  • IDEA is one of the missing algorithms in GPG. It is not the only difference with PGP 2.x. Your answer sounds like a supposition not a good knowledge of PGP/GPG. – i486 Jan 22 '18 at 9:22

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.