US Patent 10169600 Encryption policies for various nodes of a file

A computing device may parse a file into a plurality of nodes. The computing device may associate, based on the parsing, at least a first encryption policy with a first node of the plurality of nodes. The computing device may associate, based on the parsing, at least a second encryption policy with a second node of the plurality of nodes. Data may be encrypted, based on the associating at least the first encryption policy with a first node, within at least the first node. Data may be encrypted, based on the associating at least a second encryption policy with a second node, within at least the second node.