 Method for creation and management of virtual volumes for DBMs |
| What is claimed is: 1. A computer system comprising: a computer to operate a database management ... |
|
| Method and apparatus for synchronizing files |
| OF THE PREFERRED EMBODIMENTS The invention is directed to a method and apparatus for transferring ... |
|
| Virtual memory system utilizing data compression implemented through a device |
| The present invention is a method of operating a data processing system having a main memory ... |
|
| Method of clustering electronic documents in response to a search query |
| The present invention provides a method for clustering documents in answer to a query, joining ... |
|
| Method and apparatus for comparing incoming data with registered data |
| The present invention is made to overcome the above problems. It is therefore an object of the ... |
|
| Technique for obtaining and exchanging information on world wide web |
| FIG. 1 illustrates server system 100 embodying the principles of the invention, which is connected ... |
|
| Method and device for finding, collecting and acting upon units of information |
| It is therefore an object of the present invention to provide a more efficient means for ... |
|
| HTML mapping substitution graphical user interface for display of elements mapped to HTML files |
| To overcome the limitations in the prior art described above, and to overcome other limitations ... |
|
| System, method, and product for dynamically aligning translations in a translation-memory system |
| The attributes of the present invention and its underlying method and architecture will now be ... |
|
|
Notebook security system (NBS)
| Details |
Inventors: Rallis, William N.; Behar, Yaacov;
Assignee: Durango Corporation (Framingham, MA)
Primary Examiner: Swann; Tod R.
Assistant Examiner: Darrow; Justin T.
Attorney, Agent or Firm: Cesari and McKenna, LLP
A multi-level security system prevents unauthorized use of a computer. A program resident on the computer and implements a user-validation procedure. A key device carries a first serial number and an encryption key. A second serial number is stored in said computer, the second serial number being the serial number of a device internal to the computer. A mass storage device installed in said computer stores a validation record. The validation record comprises an unencrypted portion and an encrypted portion, the unencrypted portion including a copy of said first serial number and said encrypted portion including a copy of said second serial number and a user personal identification number. The key device is interfaced to the computer. The first serial number and the encryption key are read from said key device in order to gain authorized use of said computer. The key device may be removed from the computer after authorized use of the computer has been gained, and during operation of the computer. |
|
DETAILED DESCRIPTION Briefly, a security system constructed in accordance with the invention implements a user-validation procedure that requires the user to connect the proper hardware "key" device to a computer at power-up to enable operation.
The system can support multiple users and a single supervisor.
Each authorized user is provided with a unique key device which is carried and stored separately from the computer.
The key device holds a unique serial number and an encryption key.
A validation record stored on the computer's hard disk contains an unencrypted key device serial number, an encrypted hard disk serial number, and a Personal Identification Number (PIN) unique to the user.
A program that is automatically invoked at computer power-up, or reset, implements the user-validation procedure.
The user is prompted to connect the key device to the computer.
In the preferred embodiment, the user is prompted to enter a PIN, although the system can be configured to operate without manual PIN entry.
The procedure permits entry past a first security level only if the key device serial number matches the unencrypted numbers in the validation record.
If the first-level validation is successful, the procedure then uses the encryption key to decrypt the hard drive serial number and PIN found in the stored validation record.
The procedure permits entry past the second security level only if the validation record is properly decrypted, the installed hard disk serial number matches the decrypted number, and the manually-entered PIN matches the decrypted PIN.
A failure at any step in the user-validation procedure will immediately power down the computer, thereby rendering it useless to a thief not possessing the required key device.
Because the key device is not required for normal computer operations, after the user-validation procedure has successfully terminated, the user can remove the key device and keep it separate from the computer.
Moreover, the small size of the key device makes it easy to transport and keep safe
|
| Related patents |
|
|
Device with alternating status message display capability
OF THE PREFERRED EMBODIMENTS Reference is first directed to FIG. 1, which represents a simplified functional block diagram for a device 10, preferably a pager/watch, ...
|
|
|
System for managing multimedia discs, tracks and files on a standalone computer
The present invention addresses the needs of computer users and professionals that need to access and manage numerous multimedia files and/or collections of compact ...
|
|
|
Personal communication and positioning system
OF THE INVENTION FIG. 1 shows a system capable of communicating using the electromagnetic energy spectrum, traditional computer networks, cellular phone networks, ...
|
|
|
Bracelet
The present invention provides a bracelet having an electronic display unit including a display region comprising a plurality of display elements, each display element ...
|
|
|
Integrated television and internet information system
The present invention advantageously overcomes many of the aforementioned disadvantages and provides an integrated television/Internet commercialization system. This ...
|
|
|
Method and system for identifying data locations associated with real world observations
OF THE INVENTION As discussed above, the present invention provides methods and apparatuses for identifying a data location based upon physical observations in the real ...
|
|
|
Method for producing playlists for personalized music stations and for transmitting songs on such playlists
This invention provides a method of producing a playlist of music for a personal music station comprising the steps of assigning ratings to at least one of a plurality ...
|
|
|
Attribute-enhanced scroll bar system and method
The present invention significantly extends the function of scroll bars by superimposing a map of the positions of significant attributes within a stored data file in ...
|
|
|
Management of client requests in a client-server environment
To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present ...
|
|
|
Virtual certificate authority
The above objects above are met by the present invention which encompasses a method of and apparatus or system for providing certificates to requesters in which (1) the ...
|
|
|
File Sharing 
