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US 5,857,025 AGranted
Electronic encryption device and method
AssigneeIntelligent Security Systems Corporation
InventorsRobert Anderson, George R. Schultz, John P. Heptig
Life of this patent
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Abstract
A device and method is provided using a split processor based architecture to provide physical security of critical information by implementing a required protocol before releasing critical information. The critical information is used as a key to a cryptographic algorithm. A chaotic cryptographic algorithm is also provided including a defined key space employing six parameters of a Lorenzian system of equations.
Claims72
A data encryption and decryption system comprising:
- a. means for selecting a set of parameters from a predetermined valid parameter space;
- b. means for inserting the parameters into chaotic equations of the form:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where 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 deriving a cipher number from the iterate streams;
- and
- e. means for xoring the cipher number with the data.
7 more elements
A data encryption and decryption system comprising:
- a. means for selecting a set of parameters from a predetermined valid parameter space;
- b. means for inserting the parameters into chaotic equations of the form:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where 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 deriving a cipher number from the iterate streams;
- e. means for xoring the cipher number with the data;
- f. means for iterating the chaotic equations a predetermined number of times;
- and
- g. means for appending the predetermined number to encrypted data.
9 more elements
A data encryption and decryption system comprising:
- a. storage means containing multiple sets of valid parameters from a predetermined valid parameter space;
- b. means for selecting a set of parameters from the storage means;
- c. means for inserting the selected parameters into chaotic equations of the form:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where x', y' and z' are numeric results and x, y, z, .sigma., r and b are parameters;
- d. means for iterating the chaotic equations to derive x', y' and z' iterate streams;
- e. means for deriving a cipher number from the iterate streams;
- f. means for xoring the cipher number with the data;
- and
- g. means for storing the numeric results.
9 more elements
A data encryption and decryption system comprising:
- a. means for selecting a set of parameters from a predetermined valid parameter space;
- b. means for inserting the parameters into chaotic equations of the form:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where 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 deriving a cipher number from the iterate streams;
- e. means for xoring the cipher number with the data;
- f. means for iterating the chaotic equations a predetermined number of times;
- g. means for encoding the predetermined number;
- and
- h. means for appending the encoded number to encrypted data.
10 more elements
A data encryption system comprising:
- a. a predetermined set of valid initial conditions;
- b. a protocol responsive memory programmed to store and allow access to the initial conditions in response to a protocol;
- c. a processor connected to the protocol responsive memory, the processor programmed to:
- (1) execute the protocol;
- (2) receive and store the initial conditions returned by the protocol responsive memory;
- (3) insert the initial conditions into and iterate a set of chaotic equations to arrive at iterated results;
- and
- (4) create encrypted data by combining data with the iterated results.
5 more elements
A data encryption system comprising:
- a. a predetermined set of valid initial conditions;
- b. a protocol responsive memory programmed to store and allow access to the initial conditions in response to a protocol;
- c. a processor connected to the protocol responsive memory, the processor programmed to:
- (1) execute the protocol;
- (2) receive and store the initial conditions returned by the protocol responsive memory;
- (3) insert the initial conditions into and iterate a set of chaotic equations to arrive at iterated results;
- (4) create encrypted data by combining data with the iterated results;
- d. a memory partition for storing a read password;
- and
- e. a comparator, connected to the memory partition and to the processor, for executing the protocol.
7 more elements
A data encryption system comprising:
- a. a predetermined set of valid initial conditions;
- b. a protocol responsive memory programmed to store and allow access to the initial conditions in response to a protocol;
- c. a processor connected to the protocol responsive memory, the processor programmed to:
- (1) execute the protocol;
- (2) receive and store the initial conditions returned by the protocol responsive memory;
- (3) insert the initial conditions into and iterate a set of chaotic equations to arrive at iterated results;
- (4) create encrypted data by combining data with the iterated results;
- d. generation of an address by the processor;
- e. transmission of the address by the processor to the protocol responsive memory;
- and
- f. transmission of the initial conditions by the protocol responsive memory to the processor upon receipt of the address.
8 more elements
A data encryption system comprising:
- a. a predetermined set of valid initial conditions;
- b. a protocol responsive memory programmed to store and allow access to the initial conditions in response to a protocol;
- c. a processor connected to the protocol responsive memory, the processor programmed to:
- (1) execute the protocol;
- (2) receive and store the initial conditions returned by the protocol responsive memory;
- (3) insert the initial conditions into and iterate a set of chaotic equations to arrive at iterated results;
- (4) create encrypted data by combining data with the iterated results;
- and
- d. a memory connected to the processor to store and allow access to the iterated results.
6 more elements
An encryption system comprising:
- a. a first memory for holding data to be encrypted;
- b. a second memory for holding encrypted data;
- c. a slave processor having a memory for storage of initial conditions and a memory for storage of a password;
- d. the slave processor programmed to release the initial conditions upon receipt of the password;
- e. a master processor connected to the first and second memories and the slave processor, programmed to:
- (1) send the password to the slave processor;
- (2) store the initial conditions returned by the slave processor;
- (3) iteratively apply the initial conditions to equations of the following type:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where x', y' and z' are iterated results of the equations given initial conditions x, y, z, .sigma., r, and b;
- (4) read data from the first memory;
- (5) combine the data with the iterated results to create encrypted data;
- and
- (6) store the encrypted data in the second memory.
13 more elements
A data encryption system comprising:
- a. a first memory for holding data to be encrypted;
- b. a second memory for holding encrypted data;
- c. a third memory for holding a master processor password;
- d. an input device;
- e. a slave processor having a memory for storage of a serial number, a read password and a set of initial conditions;
- f. the slave processor programmed to release the serial number when polled and to release the initial conditions only upon receipt of the read password;
- g. a master processor connected to the first, second and third memories and the input device and removably connected to the slave processor;
- h. the master processor programmed to:
- (1) poll the slave processor and store the serial number returned by the slave processor in temporary memory;
- (2) access the input device and store identification data input from the input device in temporary memory;
- (3) access the third memory, retrieve the master processor password and store the master processor password in temporary memory;
- (4) xor the serial number, the identification number and the master processor password and store the result in temporary memory as the read password;
- (5) transmit the read password to the slave processor;
- (6) read the initial conditions returned by the slave processor;
- (7) apply the initial conditions to a set of chaotic equations;
- (8) iterate the chaotic equations and store iterated results;
- (9) read the data to be encrypted from the first memory;
- (10) xor the data to be encrypted with the iterated results and store the result.
15 more elements
A method of encrypting data comprising of the steps of:
- a. selecting a set of parameters from a predetermined valid parameter space;
- b. inserting the parameters into the chaotic equations of the form:
- x'=-.sigma.+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where x, y, z, .sigma., r and b are parameters and x', y' and z' are numeric results;
- c. iterating the chaotic equations to derive a x' iterate stream, a y' iterate stream and a z' iterate stream;
- d. creating a cipher stream by choosing a segment of one or more iterate streams;
- and
- encrypting data by combining the cipher stream with the data.
7 more elements
A method of encrypting data comprising the steps of:
- a. selecting a set of parameters from a predetermined seed space;
- b. inserting the parameters into chaotic equations of the form:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where x, y, z, .sigma., b and r are parameters and x', y' and z' are numeric results;
- c. iterating the chaotic equations to derive are x' iterate stream, a y' iterate stream and a z' iterate stream;
- d. xoring the x' iterate stream, the y' iterate stream and the z' iterate stream to obtain a cipher number;
- e. xoring the cipher number with the data to create encrypted data.
6 more elements
A data decryption system comprising:
- a. a predetermined set of valid initial conditions;
- b. a protocol responsive memory programmed to store and allow access to the initial conditions in response to a protocol;
- c. a processor connected to the protocol responsive memory, the processor programmed to:
- (1) execute the protocol;
- (2) receive and store the initial conditions returned by the protocol responsive memory;
- (3) insert the initial conditions into and iterate a set of chaotic equations to arrive at iterated results;
- and
- (4) create decrypted data by xoring the data with the iterated results.
5 more elements
An encryption system comprising:
- a. a first memory for holding data to be decrypted;
- b. a second memory for holding decrypted data;
- c. a slave processor having a memory for storage of initial conditions and a memory storage of a password;
- d. the slave processor programmed to release the initial conditions upon receipt of the password;
- e. a master processor connected to the first and second memories and the slave processor, programmed to:
- (1) send the password to the slave processor;
- (2) store the initial conditions returned by the slave processor;
- (3) iteratively apply the initial conditions to equations of the following type:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where x', y' and z' are iterated results of the equations given initial conditions x, y, z, .sigma., r, and b;
- (4) read data from the first memory;
- (5) combine the data with the iterated results to create decrypted data;
- and
- (6) store the decrypted data in the second memory.
13 more elements
A data decryption system comprising:
- a. a first memory for holding data to be decrypted;
- b. a second memory for holding decrypted data;
- c. a third memory for holding a master processor password;
- d. an input device;
- e. a slave processor having a memory for storage of a serial number, a read password and a set of initial conditions;
- f. the slave processor programmed to release the serial number when polled and to release the initial conditions only upon receipt of the read password;
- g. a master processor connected to the first, second and third memories and the input device and removably connected to the slave processor;
- h. the master processor programmed to:
- (1) poll the slave processor and store the serial number returned by the slave processor in temporary memory;
- (2) access the input device and store identification data input from the input device in temporary memory;
- (3) access the third memory, retrieve the master processor password and store the master processor password in temporary memory;
- (4) xor the serial number, the identification number and the master processor password and store the result in temporary memory as the read password;
- (5) transmit the read password to the slave processor;
- (6) read the initial conditions returned by the slave processor;
- (7) apply the initial conditions to a set of chaotic equations;
- (8) iterate the chaotic equations and store iterated results;
- (9) read the data to be decrypted from the first memory;
- (10) xor the data to be decrypted with the iterated results and store the results.
15 more elements
A method of decrypting data comprising of the steps of:
- a. selecting a set of parameters from a predetermined valid parameter space;
- b. inserting the parameters into the chaotic equations of the form:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where x, y, z, .sigma., r and b are parameters and x', y' and z' are numeric results;
- c. iterating the chaotic equations to derive a x' iterate stream, a y' iterate and a z' iterate stream;
- d. creating a cipher stream by choosing a segment of one or more iterate streams;
- and
- e. decrypting data by combining the cipher stream with the data.
7 more elements
A method of encrypting and decrypting data comprising the steps of:
- a. selecting a set of parameters from a predetermined seed space;
- b. inserting the parameters into chaotic equations of the form:
- x'=-.sigma.x+.sigma.y
- y'=rx-y-xz
- z'=-bz+xy
- where x, y, z, .sigma., b and r are parameters and x', y' and z' are numeric results;
- c. iterating the chaotic equations to derive are x' iterate stream, a y' iterate stream and a z' iterate stream;
- d. xoring the x' iterate stream, the y' iterate stream and the z' iterate stream to obtain a cipher number;
- e. encrypting data by xoring the cipher number with the unencrypted data;
- and
- f. decrypting data by xoring the cipher number with the encrypted data.
8 more elements
Dependencies are inferred from the claim text.