| 摘要 |
System, method and apparatus for securely distributing content via an encrypted file wherein a Publisher Key (PK) associated with an authorized publisher enables presentation of the content by the authorized user via a Limited Capability Viewer (LCV), the LCV lacking the capability to forward, print, copy or otherwise disseminate the content to be presented. Various embodiments provided enhanced user authentication or authorization, VPN functions, collaboration techniques, automatic distribution of licenses, watermarking of documents, rules pertaining to content transfer between secure and insecure domains and combinations thereof. |
