초록 ▼

A device and method is provided using a split processor based architecture to provide physical security of information by implementing a required protocol before releasing information. The information is used as a key to a cryptographic algorithm. A chaotic cryptographic algorithm is also provided i

A device and method is provided using a split processor based architecture to provide physical security of information by implementing a required protocol before releasing information. The information is used as a key to a cryptographic algorithm. A chaotic cryptographic algorithm is also provided including a key space employing six parameters of a Lorentzian system of equations.

대표청구항 ▼

[ What is claimed:] [1.] A data encryption and decryption system comprising:a. means for selecting a set of parameters from a predetermined parameter space;b. means for inserting the parameters into chaotic equations of the form:EQU x'=-.sigma.x+.sigma.yEQU y'=rx-y-xzEQU z'=-bz+xywhere x', y' and z'

[ What is claimed:] [1.] A data encryption and decryption system comprising:a. means for selecting a set of parameters from a predetermined parameter space;b. means for inserting the parameters into chaotic equations of the form:EQU x'=-.sigma.x+.sigma.yEQU y'=rx-y-xzEQU z'=-bz+xywhere x', y' and z' are numeric results and x, y, z, .sigma., r and b are parameters;c. means for iterating the chaotic equations to derive x', y' and z' iterate streams;d. means for testing at least one of the iterate streams for chaotic behavior;e. means for deriving a cipher number from the iterate streams; andf. means for xoring the cipher number with the data.