Showing posts with label tivo. Show all posts
Showing posts with label tivo. Show all posts

Tuesday, May 15, 2007

TiVo Awarded Patent For Password You Can't Hack

United States Patent 7,216,235
Platt May 8, 2007

Drive/host locking system

An authentication system for securing information within a disk drive to be read and written to only by a specific host computer such that it is difficult or impossible to access the drive by any system other than a designated host is disclosed. While the invention is similar in intent to a password scheme, it significantly more secure. The invention thus provides a secure environment for important information stored within a disk drive. The information can only be accessed by a host if the host can respond to random challenges asked by the disk drive. The host's responses are generated using a cryptography chip processing a specific algorithm. This technique allows the disk drive and the host to communicate using a coded security system where attempts to break the code and choose the correct password take longer to learn than the useful life of the disk drive itself.