TPK Archival

[Chris Hills]

Hi

I am looking for a tool that to export a GPG private key to a Data 
Matrix 2d barcode for long-term archival. I have been searching but have 
yet to find any existing software to do this. I have looked at PaperKey 
but it only produces an ascii representation which is not optimized for 
machine-reading. My preferred output formats are PDF/EPS/SVG. If such 
software does not already exist, I would appreciate a pointer on how to 
make something myself, perhaps using the binary output from PaperKey.

Apologies if this has been discussed before but I could not find 
anything relevant.

Regards,

Chris Hills