| 摘要 |
The invention relates to the processing and transmitting of data within a functionally secure, electrical, electronic and/or programmable electronic system that is formed by at least two sub-systems, which each comprise at least one secure hardware and/or software component, and each satisfy a determined security level for a functionally secure data processing. The invention provides: the processing of data by means of the secure hardware and/or software component of a first of the sub-systems to form functionally secure data of a first security level; and the adding of at least one characterisation attribute to this data via said first sub-system, which characterisation attribute characterises the suitability of the data for the use of this first security level; the transmitting of the data including the added characterisation attribute from the first sub-system to a second of the sub-systems; and receiving the data including the added characterisation attribute via the second sub-system; and the checking of the received characterisation attribute via the second sub-system by means of the secure hardware and/or software component thereof for the purpose of determining whether the security level, characterised by this characterisation attribute, is equal or unequal to the security level satisfied by the second sub-system; and, if the check results in an inequality, the functionally secure further processing of the data based on the reduced security level. |
