Electrical computers and digital processing systems: support – System access control based on user identification by...
Reexamination Certificate
2007-05-08
2007-05-08
Moazzami, Nasser (Department: 2136)
Electrical computers and digital processing systems: support
System access control based on user identification by...
C713S164000, C713S189000
Reexamination Certificate
active
09642617
ABSTRACT:
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.
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Hickman Palermo & Truong & Becker LLP
Moazzami Nasser
Parthasarthy Pramila
TiVo Inc.
Wong Kirk D.
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