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DISTRIBUTED DATABASE SYSTEM, INDUSTRY AUTOMATION SYSTEM AND METHOD FOR OPERATING A DISTRIBUTED DATABASE SYSTEM
DISTRIBUTED DATABASE SYSTEM, INDUSTRY AUTOMATION SYSTEM AND METHOD FOR OPERATING A DISTRIBUTED DATABASE SYSTEM
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机译：分布式数据库系统，行业自动化系统和操作分布式数据库系统的方法
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摘要
The invention relates to a method for operating a distributed database system (1) having distributed node devices (2-6) for providing data blocks (Bi) linked to one another, such as for example as a block chain (BC), which document data inputs assigned to participants (8), wherein a respective coupling (9) between the participant (8) and the assigned data input is carried out with the aid of a cryptographic block chain security method (BCS). The block chain security method (BCS) has a cryptographic block chain security level (BSL). The method comprises: providing (S6) a cryptographic challenge (CC) on the basis of the block chain security method (BCS), in which the cryptographic challenge (CC) has a cryptographic challenge security level (CSL) which is lower than the block chain security level (BSL); and increasing the block chain security level (BSL) to a new block chain security level (nBSL), if a solution to the cryptographic challenge (CC) is identified. With the aid of the variable cryptographic coupling of data inputs and participants according to the invention, attacks on the database system (1) can be made difficult. As a result, the operation of a distributed database system is more secure.
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