When attempting to import a public pgp key into VC, get the error message "Invalid header line." I have a desktop client pgp application, version 8.1, and I am able to successfully import the key into that program, so it doesn't seem that the issue is with the key itself. It uses RSA.
The headers look like this:
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.2.3 (SunOS)
The production server is running VC 4.9.26, but I have also tested this with a server running VC 5.1.6, and get the same result.