Abstract: A data encryption/decryption apparatus is disclosed which includes a controller coupled to an array of random data, an encryptor/decryptor and a plurality of encryption/decryption algorithms. The array of random data and the plurality of encryption/decryption algorithms are stored on an electronically readable media. The data encryption/decryption apparatus can encrypt and decrypt data, video, audio. The electronically readable media includes random access memory, read only memory, magnetic media, optical media, magneto-optical media, CDROM, digital video disk (DVD), hard disk, a remote computer memory storage location accessible via an electronic network such as a telephone system or a computer network, or any other electronically readable media method. The controller is responsive to a key code input to the controller. The controller determines a first computed address in the array of random data and a control data length.

Abstract: A data encryption/decryption apparatus is disclosed which includes a controller coupled to an array of random data, an encryptor/decryptor and a plurality of encryption/decryption algorithms. The array of random data and the plurality of encryption/decryption algorithms are stored on an electronically readable media. The data encryption/decryption apparatus can encrypt and decrypt data, video, audio. The electronically readable media includes random access memory, read only memory, magnetic media, optical media, magneto-optical media, CDROM, digital video disk (DVD), hard disk, a remote computer memory storage location accessible via an electronic network such as a telephone system or a computer network, or any other electronically readable media method. The controller is responsive to a key code input to the controller. The controller determines a first computed address in the array of random data and a control data length.

Abstract: A security apparatus including a number input device (302), an address register (312) responsive to the number input device, an encryption schema memory (316) addressable by the address register to produce an output code and a relative address code, and address incrementing logic (310) responsive the relative address code and operative to increment the address register. The apparatus also preferably includes a PIN register (304) coupled to the number input device, a public code register (306) coupled to the number input device, and merging logic (308) merging outputs of the PIN register and the public code register to be input to the address register. The apparatus also preferably includes an output shift register operative to shift out the output code of the encryption schema memory. The encryption schema memory can be read only memory, writeable memory, or both.

Abstract: A manufacturing system is disclosed which includes first and second control devices as well as a communication terminal which controls communication with the control devices. The communications terminal includes an interceptor module which receives information from the manufacturing device and provides this information to the first and second control devices.

Abstract: A security apparatus including a number input device (302), an address register (312) responsive to the number input device, an encryption schema memory (316) addressable by the address register to produce an output code and a relative address code, and address incrementing logic (310) responsive the relative address code and operative to increment the address register. The apparatus also preferably includes a PIN register (304) coupled to the number input device, a public code register (306) coupled to the number input device, and merging logic (308) merging outputs of the PIN register and the public code register to be input to the address register. The apparatus also preferably includes an output shift register operative to shift out the output code of the encryption schema memory. The encryption schema memory can be read only memory, writeable memory, or both.

Abstract: A fault-tolerant management information system includes three or more data management systems (e.g. data base systems) that replicate data. Data access requests resulting from user requests to application systems are issued by user request processing entities and forwarded by interceptors to all the data management systems. Responses from the data management systems are obtained, and a maximum group of identical responses provides the correct response, even in the case of "soft" errors not flagged by error codes. Errors are reported to an administration system, and correction of the data base containing the errors is handled by a recovery server. Overall system performance is further enhanced by including data base query systems, which replicate the data. Data access requests resulting from data base query requests are issued by query systems to the data base query systems.

Abstract: A manufacturing system is disclosed which includes first and second control devices as well as a communication terminal which controls communication with the control devices. The communications terminal includes an interceptor module which receives information from the manufacturing device and provides this information to the first and second control devices.