Abstract: This invention creates a portable digital identity of the individual that includes personal information, and may also include data representing the person's handwritten signature and one or more passwords. The digital identity optionally includes data representing seals, fingerprints and biometric information. The digital identity can be used to bind a verifiable electronic impression with an electronic document using electronic watermarks so that any modification in the document or the electronic impression bound to the document can be detected. The personal information included in the digital identifiers can include, in addition to a password, answers to questions that are composed by the user. The digital identity of a user can be created once and stored after encryption for protection. This digital identity can then be used by the signer to bind a unique instance of an impression of the digital identity to any document.

Abstract: A system monitors a data payload that is being transmitted in a secure form over the Internet and provides rate computations for such payloads based on the size of the data. A data container may be implemented as a digital envelope with the bitmap (digital picture) of a stamp. The current rate for the data container is shown on the stamp and is dynamically updated as data files are added to the envelope. The overall cost is a function of the applied rate card, the size of the data and the type of security services provided.