U.S. patents available from 1976 to present.
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Method for seeding a pseudo-random number generator with a cryptographic hash of a digitization of a chaotic system

Patent 5732138 Issued on March 24, 1998. Estimated Expiration Date: Icon_subject January 29, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Line tilt compensation method and apparatus
Patent #: 4777648
Issued on: 10/11/1988
Inventor: Gardner

Key-to-address transformations
Patent #: 4780816
Issued on: 10/25/1988
Inventor: Connell

Line tilt compensation method and apparatus
Patent #: 4951314
Issued on: 08/21/1990
Inventor: Shreve

Secure television signal encoding and decoding system
Patent #: 4964162
Issued on: 10/16/1990
Inventor: McAdam, et al.

Encryption system based on chaos theory Patent #: 5048086
Issued on: 09/10/1991
Inventor: Bianco, et al.

Inventors

Application

No. 592891 filed on 01/29/1996

US Classes:

380/28, PARTICULAR ALGORITHMIC FUNCTION ENCODING380/46, Nonlinear (e.g., pseudorandom)708/254Seed value controls

Examiners

Primary: Cangialosi, Salvatore

Attorney, Agent or Firm

International Class

H04L 009/22

Abstract

A method for generating a pseudo-random numbers Initially, the state of a chaotic system is digitized to form a binary string. This binary string is then hashed to produce a second binary string. It is this second binary string which is used to seed a pseudo-random number generator. The output from the pseudo-random number generator may be used in forming a password or cryptographic key for use in a security system.

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