Secure Operating Data Transmission for Graphics Industry Machines
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Solution Overview
Problem
Existing remote maintenance systems for machines in the graphics industry lack secure data transmission methods, allowing unauthorized access and manipulation of operating data during transmission from machines to manufacturers via public communications networks.
Innovation Solution
The method involves encrypting operating data on machine computers, using public or private key algorithms, and transmitting it through a public communications network, ensuring only authorized computers with digital signatures can decrypt and access the data, with additional checksums and plausibility checks to detect manipulations and ensure data integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operating data is transmitted via public communications networks without encryption, then data transmission simplicity is improved, but security and protection against unauthorized access deteriorates
Solution Approach 1:
The patent applies preliminary action by encrypting the operating data before transmission occurs. The data is encrypted on the machine computer at the source, so that when it is transmitted through the public communications network, it is already protected. This preliminary encryption ensures that even though the transmission uses simple public networks, the data remains secure against unauthorized access throughout the transmission process.
2Speed
If operating data is transmitted without encryption, then transmission speed and network accessibility are improved, but data integrity and protection against manipulation deteriorates
Solution Approach 1:
The patent implements preliminary action by performing encryption before the data enters the transmission process. The operating data is encrypted on the machine computer prior to transmission, which means that the encryption overhead is incurred only once at the source rather than during transmission. This approach maintains high transmission speeds while ensuring data integrity, as the encrypted data can be quickly transmitted through public networks without repeated encryption operations.
Solution Approach 2:
The patent applies feedback by implementing checksums and plausibility checks that provide verification of data integrity. After transmission, the receiving system can verify that the data has not been manipulated during transmission by comparing checksums and checking for plausibility. This feedback mechanism ensures data integrity without requiring re-transmission, thus maintaining transmission speed while protecting against manipulation.
3Reliability
If operating data is encrypted before transmission, then security against unauthorized access is improved, but device complexity and processing requirements deteriorates
Solution Approach 1:
The patent applies the taking out principle by extracting the encryption function from the transmission process and placing it at the data source. The encryption is performed on the machine computer where the operating data is generated, separating the encryption operation from the transmission function. This allows the use of simple, well-established encryption algorithms without adding complexity to the transmission infrastructure, as the encryption handling is contained within the existing machine computer processing.
4Ease of operation
If operating data is transmitted without digital signature verification, then transmission simplicity is improved, but authentication and authorization control deteriorates
Solution Approach 1:
The patent implements preliminary action by attaching digital signatures to the encrypted data before transmission. The machine computer creates a digital signature based on the encrypted operating data and transmits both the encrypted data and the signature together. This preliminary preparation ensures that authentication and authorization verification can be performed efficiently at the receiving end without adding complexity to the transmission process, as the signature is already prepared and attached to the data packet.
Data Source
AI summary
A method for transmitting operating data of machines in the graphics industry is performed via a communications network that is accessible to the public and the operating data is transmitted to at least one management computer that can be reached via the public communications network. The operating data from the machine in the graphics industry is stored in encrypted form in at least one computer assigned to the machine, and the encrypted operating data is transmitted to the management computer via the communications network that is accessible to the public and is stored on the management computer.