 Stereo electroacoustic transducing |
| What is claimed is: 1. A stereo loudspeaker system for providing good stereo imaging over a wide ... |
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| Loudspeaker system |
| It is an object of the present invention to provide a loudspeaker system which increases the size ... |
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| Method of simulating a room and/or sound impression |
| OF THE PREFERRED EMBODIMENTS FIG. 1a of the drawing shows a possible method of determining the ... |
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| Acoustic display system and method for ultrasonic imaging |
| The invention provides an ultrasonic imaging system with a three-dimensional acoustic display. In ... |
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| Panel-form microphones |
| What is claimed is: 1. A panel-form microphone for operation in a predetermined frequency range, ... |
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| Audio system for a computer display |
| OF THE INVENTION Referring to the drawing there is shown an essentially rectangular screen S of an ... |
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| Apparatus and method for adjusting audio equipment in acoustic environments |
| The foregoing objects are achieved by this invention in which the signal in each channel of a ... |
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| Method for the authentication of data |
| It is an aim of the invention to increase the possibilities of the method of authentication so that ... |
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| Stereo signal communication system and method |
| OF SPECIFIC EMBODIMENTS Referring to the specific embodiment shown in the drawings, and without ... |
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| Method and apparatus for encryption |
| The above-discussed and other drawbacks and deficiencies of the prior art are overcome or ... |
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Cryptographic key split combiner
| Details |
Inventors: Scheidt, Edward M.; Wack, C. Jay;
Assignee: TecSec, Inc. (Vienna, VA)
Primary Examiner: Darrow; Justin T.
Assistant Examiner:
Attorney, Agent or Firm: IP Strategies, PC
A cryptographic key split combiner, which includes a number of key split generators for generating cryptographic key splits and a key split randomizer for randomizing the cryptographic key splits to produce a cryptographic key, and a process for forming cryptographic keys. Each of the key split generators generates key splits from seed data. The key split generators may include a random split generator for generating a random key split based on reference data. Other key split generators may include a token split generator for generating a token key split based on label data, a console split generator for generating a console key split based on maintenance data, and a biometric split generator for generating a biometric key split based on biometric data. All splits may further be based on static data, which may be updated, for example by modifying a prime number divisor of the static data. The label data may be read from a storage medium, and may include user authorization data. The resulting cryptographic key may be, for example, a stream of symbols, at least one symbol block, or a key matrix. |
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DETAILED DESCRIPTION It is therefore an object of the present invention to provide a process and apparatus for assembling keys which provides added security against compromising a communication by unauthorized entities.
It is a further object of the present invention to provide a process and apparatus for developing key components that cannot be reproduced by unauthorized parties.
These and other objects and advantages are provided by a cryptographic key split combiner, which includes a number of key split generators for generating cryptographic key splits and a key split randomizer for randomizing the cryptographic key splits to produce a cryptographic key.
Each of the key split generators generates key splits from seed data.
In one embodiment of the present invention, the key split generators include a random split generator for generating a random key split based on reference data.
The random split generator may generate a random sequence based on the reference data, or may generate a pseudorandom sequence based on the reference data.
The random key split may further be based on chronological data.
The random key split may instead be based on the reference data and on static data, which may be updated.
One manner of updating the static data is by modifying a prime number divisor of the static data.
Other key split generators may include, for example, a token split generator for generating a token key split based on label data and/or organization data and/or static data; a console split generator for generating a console key split based on maintenance data, whether previous or current, and/or on static data; and a biometric split generator for generating a biometric key split based on biometric data, which may include biometric data vectors and on biometric combiner data, and/or static data.
The label data may be read from a storage medium, and may include user authorization data.
The resulting cryptographic key may be, for example, a stream of symbols, at least one symbol block, or a key matrix
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Audio Signal Processing 
