Looking for a recommendation for a service:
I would like to find a service that provides me with an API to which I can send a document for company A that is encrypted with A's public key (or some similar mechanism) - along with the folder structure and document name (.e.g. encyptedFileForA, /2015/June/20/).
Service then provides A with the ability to log in and see all documents posted for them without any knowledge of company B etc.
Basically I generate a lot of files that need to be secure and I do not want to have to secure and manage them myself.