Patent ID: 7383447

Claim:
A digital data management apparatus, comprising: an input device configured to receive encrypted digital data and a permit key; a first means for decrypting the encrypted digital data and for performing a set of functions, wherein the set of functions includes displaying, editing, storing, copying, and transferring said digital data, wherein the first means is configured to authorize a user to display the decrypted digital data in response to the permit key having a value indicating that the user has display authorization, wherein the first means is configured to authorize the user to edit the decrypted digital data in response to the authorize key having a value indicating that the user has edit authorization, wherein the first means is configured to authorize the user to store a re-encrypted version of the decrypted digital data in response to the authorize key having a value indicating that the user has storage authorization, wherein the first means is configured to authorize the user to copy a re-encrypted version of the decrypted digital data in response to the authorize key having a value indicating that the user has copy authorization, wherein the first means is configured to authorize the user to transfer a re-encrypted version of the decrypted digital data in response to the authorize key having a value indicating that the user has transfer authorization.