Skyhook is a REST-driven web application used to smuggle files into and out of networks defended by perimeter controls that inspect and act on traffic perceived to contain malicious content.
And here is the file transfer interface. Clicking "Download" results in the file being retrieved in chunks encrypted with the chain of obfuscation methods configured above.
Skyhook's file transfer server seamlessly obfuscates file content with a user-configured series of obfuscation algorithms prior to writing the content to response bodies. Clients, which are configred with the same obfuscation algorithms, deobfuscate the file content prior to saving the file to disk. A file streaming technique is used to manage the HTTP transactions in a chunked manner, thus facilitating large file transfers.