header is visible but protected via the checksum of a digital certificate, so it cannot be tampered with.
Separation of content and access rights:
Access rights are not tied in with the content but can be purchased from a licensee's server on the Internet. Publishers need ke
ep only one sealed copy of their product while offering different access models through various license types. These license types and the associated pricing model may change over time, without the publisher having to repackage the content.
Decryption on the fly:
Cryptographic algorithms support streaming medium types such as audio or video streams. Thus, protected content can be decrypted on the fly as it arrives from the Internet, reducing the performance disadvantage compared to public domain content.
No interaction with the browser cache:
The SoftSeal plug-in renders content independent of the browser and does not let decrypted content be stored in the browser's cache. (It also denies print screen access.) However, for users who hold valid licenses, the process of viewing sealed content is the same as viewing free content.
No distribution of deciphered content:
The SoftSeal client has to be on the remote machine to decrypt sealed content, so no one can distribute deciphere
d content.
In addition, the system features a detailed reporting capability for what users do with sealed content. For example, SoftSeal can, depending on the license type, report how many copies users print, how long they spend viewing a page, and who else has access to the content.
illustration_link (45 Kbytes)
Better Copyright Protection
