Cryptography – Particular algorithmic function encoding
Patent
1990-07-16
1991-09-10
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
380 9, 380 46, 380 50, H04L 928
Patent
active
050480863
ABSTRACT:
An encryption system and method based on the mathematics of Chaos theory, which provides protection of data from unauthorized modification and use during its storage and transmission. At its core are nonlinear equations which exhibits random, noise-like properties, given certain parameter values. When iterated, a periodic sequence is produced with an extremely long cycle length. A domain transformation process is then used to convert the floating-point iterates into binary form for summation with the digital data to be protected. The result is an encrypted message that cannot be modified, replaced, or understood by anyone other than the intended party. The use of Chaos theory in combination with the domain transformation process results in an easily implemented cryptographic system with extremely robust cryptographic properties. The concepts of the present invention also lend themselves well to either hardware or software implementations. The cryptographic system of the present invention may be employed to encrypt and decrypt sensitive information, to authenticate data and video links, or similar applications. It can also be used to provide a simple hash function for the secure storage of passwords in a computer system. Its simplicity, requiring only floating-point operations at its core, allows a lower cost and higher performance product with cryptographic security equivalent to conventional cryptographic systems.
REFERENCES:
patent: 5007087 (1991-04-01), Bernstein et al.
Robert Matthews, "On the Derivation of a Chaotic Encryption Algorithm"; Cryptologia, (Jan., 1989; vol. XIII, No. 13, pp. 29-42).
Bianco Mark E.
Reed Dana A.
Denson-Low Wanda K.
Gregory Bernarr E.
Hughes Aircraft Company
Mitchell Steven M.
Westerlund Robert A.
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