Controlling access to electronic documents

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C726S002000

Reexamination Certificate

active

07434048

ABSTRACT:
Methods and apparatus, including computer program products, for controlling access to an electronic document. A document management system receives a request from a first user at a first user location for an electronic document. The first user is authenticated using a set of access policies for the electronic document, to verify that the first user is authorized to obtain the electronic document. If so, an encrypted rendition is passed to the first user. A request for access to the encrypted rendition from a second user is then received. The second user is authenticated, using the set of access policies, to establish which operations the second user may perform on the encrypted rendition. A voucher including an electronic key for decrypting the encrypted rendition and the set of access policies is created at the document management system. The voucher is passed to the second user location.

REFERENCES:
patent: 6289450 (2001-09-01), Pensak et al.
patent: 6339825 (2002-01-01), Pensak et al.
patent: 6449721 (2002-09-01), Pensak et al.
patent: 2002/0194485 (2002-12-01), Ram et al.
patent: 2003/0200459 (2003-10-01), Seeman
patent: 2003/0237005 (2003-12-01), Bar-Or et al.
patent: 2004/0054894 (2004-03-01), Lambert
patent: 2004/0078569 (2004-04-01), Hotti
patent: 2004/0117655 (2004-06-01), Someshwar
patent: 2004/0133632 (2004-07-01), Messerges et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Controlling access to electronic documents does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlling access to electronic documents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlling access to electronic documents will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4002723

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.