I get this warning when decrypting 10 paragraphs of text: gpg: WARNING: using insecure memory! Modifying gpg to work with 16K keys isn't as easy and straightforward as it looks, and it's probably not safe for general use (at least not with the couple of hacks mentioned here). 16K public keys also probably won't work with a lot of the PGP programs out there, so even if you can hack your gpg, your senders won't be able to use them.