Managing access to a secure digital document

摘要

In a method for managing access to a secure digital document by workflow participants, in which a respective public key is associated with each of the workflow participants, an entry table is populated with a participant entry for each of the workflow participants. Each of the participant entries includes a map entry identifier that corresponds to a map entry tag in a map file, and a first label associated with the map entry identifier. In addition, symmetric keys for the workflow participants are accessed and each of the first labels is encrypted using a respective symmetric key to generate a plurality of second labels, the entry table is populated with the plurality of second labels, each of the plurality of symmetric keys is encrypted with the public key of a respective workflow participant, and the entry table is incorporated into the digital document.

主权项

1. method for managing access to a secure digital document by a plurality of workflow participants, wherein a respective public key is associated with each of the workflow participants, said method comprising:
generating a map file; populating an entry table with a participant entry for each of the workflow participants, each of said participant entries including, a map entry identifier that corresponds to a map entry tag in the map file, and wherein the map entry tag corresponds to a key entry in the map file, the key entry comprising a set of keys to decrypt the secure digital document and enable a predetermined type of access to the secure digital document, wherein the map file is separate from the entry table; and a first label associated with the map entry identifier, wherein the first label differs from the map entry identifier; accessing symmetric keys for the workflow participants; encrypting each of the first labels using a respective symmetric key of the workflow participants to generate a plurality of second labels; populating the entry table with the plurality of second labels; encrypting each of the symmetric keys with the respective public key associated with the workflow participants; and incorporating the entry table into the secure digital document.