Abstract: An access control method and industrial network for field automation which includes a plurality of network nodes that host a blockchain storing a plurality of confirmed transactions, exchange an unconfirmed transaction and add the unconfirmed transaction to the blockchain as a confirmed transaction of the confirmed transactions only if a consensus is reached between the plurality of network nodes, wherein the plurality of network nodes include a trusted backbone of the industrial network, and the confirmed transactions stored by the blockchain include a confirmed connection transaction that is authorized by the trusted backbone, indicative of a connecting device and descriptive of a right of the connecting device to access the industrial network, where a provider network node grants a connecting device access to a network resource if the confirmed connection transaction is stored in the blockchain and an amount of cryptocurrency is transferred to the provider network node.

Abstract: A method provides for a way to test coverage data used in testing small computing platforms by assigning unique signatures to each node in the control flow graph and embedding control function calls. Signatures are embedded into the program during compilation time using the custom parser. When the program is executed the “exercised” signatures sequence is checked for correctness and used for deriving test coverage metric. This metric is used for improving unit and black-box tests. Thus, a way to collect the path-based test coverage with minimal memory and code/size impact on target system is provided.

Abstract: In a method of data processing within a controller ensuring that voting operations are reliably performed error free and in a corresponding controller unit, the input data are characteristic for the particular application where voting occurs. Voting whether or not the incoming data is correct involves a voting comparison method, a voting average method, and checking for a difference being within a certain range. The time dependent signature indicates correctly transmitted input data. Voting, based on the reviewed signature characteristics is an encoded operation. The time dependent signature indicates the data is coming from a correct source, has been a modification, and correct timing slides. Voting whether or not the incoming data is correct is performed in an encoded manner. A correct data is transmitted to be further used to actuate an actuator. The erroneous data is transmitted to be further sent to a fail safe guard.

Abstract: A method provides for a way to test coverage data used in testing small computing platforms by assigning unique signatures to each node in the control flow graph and embedding control function calls. Signatures are embedded into the program during compilation time using the custom parser. When the program is executed the “exercised” signatures sequence is checked for correctness and used for deriving test coverage metric. This metric is used for improving unit and black-box tests. Thus, a way to collect the path-based test coverage with minimal memory and code/size impact on target system is provided.