- Everyone in the world (or at least my audiences) has downloaded the file ubuntu-16.04.3-desktop-amd64.iso with md5sum of 0d9fe8e1ea408a5895cbbe3431989295 which is approximately 1.5GB in size
- I distribute virtual machine appliances based on that version of Ubuntu in Open Virtualization Format (OVF).
- My Virtual Appliance consists of many packages of the Ubuntu ISO image in installed (extracted) format and a few megabytes of configurations and applications I have added. When I export it to OVF, it gives an 8GB file
Now this is the question: Is there a software I can use that performs remote-differential-compression (or performs BLOB-Seeded-Compression in my own terms)?
NOTE: This compression software is supposed to know that me and my audiences share a common large iso image containing compressed versions of most content that I publish (their extracted versions) in OVF. The software should output a file in a few megabytes that I can deliver to customers. When they want to extract the content it asks for a file with 0d9fe8e1ea408a5895cbbe3431989295 checksum and creates the 8GB ovf file.