Digital document is the most frequently stored and processed information object within the CipherMe infrastructure.

The main features of a digital document should be:

• ability to contain any types of digital objects, including the recursive nesting of other digital documents;
• recursive nesting of digital signatures and support for parallel signatures;
• embedded control of document workflow, including the conditioning by the presence of signatures;
• separation of content from, possibly multiple, modes of presentation;
• full parsing by document processing systems;

A very important feature of a digital document is its independence from any document processing system and that the specification of the expected flow of that document should be contained within the document itself.

An important application in the area of digital documents is the digital notary function, which enables the creation of legally valid digital equivalents of pre-existing paper documents and of legally valid digital document representations of entries in centralised databases.