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12. 发明公开

EP3134845A1 VERFAHREN UND SYSTEM ZUR ERKENNUNG EINER MANIPULATION VON DATENSÄTZEN 审中-公开
标题翻译： VERFAHREN UND SYSTEM ZUR ERKENNUNG EINER操作VONDATENSÄTZEN
公开(公告)号：EP3134845A1
公开(公告)日：2017-03-01
申请号：EP15723672.0
申请日：2015-05-08
申请人： Siemens Aktiengesellschaft
发明人： BUSSER, Jens-Uwe , CUELLAR, Jorge , MUNZERT, Michael , PATZLAFF, Heiko , STIJOHANN, Jan
IPC分类号： G06F21/64
CPC分类号： H04L9/0643 , G06F21/64 , H04L9/0861
摘要： A method for identifying manipulation of data records (LOG1,.., LOGn) in a system comprising a computation apparatus and an external security apparatus, wherein the data records are stored in the computation apparatus, having the method steps of: allocation of a secret to a computation apparatus, generation of a first cryptographic key (K1) by a one-way function (H) on the basis of the secret (SEC), storage of the secret (SEC) on a security apparatus that is different from the computation apparatus, use of the first cryptographic key (K1) for the purpose of protecting a first data record (LOG1), and generation of a respective next cryptographic key (Kn) by the same one-way function (H) on the basis of the respectively preceding cryptographic key (Kn-1) for the purpose of protecting (38) a next data record (LOGn) on the computation apparatus and simultaneous erasure or overwriting of the respectively preceding cryptographic key (Kn-1).
摘要翻译：一种用于识别包括计算装置和外部安全装置的系统中的数据记录的操纵的方法，其中所述数据记录被存储在所述计算装置中，具有以下方法步骤：将秘密分配给计算装置，生成基于秘密，在与计算装置不同的安全装置上存储秘密的单向功能的第一加密密钥，为了保护第一数据记录而使用第一加密密钥，以及生成为了保护计算装置上的下一个数据记录，同时擦除或覆盖分别在前的密码密钥，基于相应的前一密码密钥，通过相同的单向功能的相应的下一个加密密钥。

14. 发明公开

EP4099656A1 COMPUTER-IMPLEMENTED METHOD AND SURVEILLANCE ARRANGEMENT FOR IDENTIFYING MANIPULATIONS OF CYBER-PHYSICAL-SYSTEMS AS WELL AS COMPUTER-IMPLEMENTED-TOOL AND CYBER-PHYSICAL-SYSTEM 无效
公开(公告)号：EP4099656A1
公开(公告)日：2022-12-07
申请号：EP21176918.7
申请日：2021-05-31
申请人： Siemens Aktiengesellschaft
发明人： SCHENK, Tim , BOTERO HALBLAUB, Andrés , PATZLAFF, Heiko , OBRADOVIC, Dragan , KNORN, Steffi , PATEL, Abhi Himmatbhai
IPC分类号： H04L29/06 , H04L29/08
摘要： In order to identify manipulations of cyber-physical-systems, in which the manipulations of the cyber-physical-systems, such as cyber-security attacks or manual attacks, can be identified in real-time in order to avoid or even prevent damages to the cyber-physical systems, it is proposed with regard to ( i ) a cyber-physical-system (CPS, CPS') with an embedded, distributed and complex system structure (SST) and providing sensor/actor-signal-information (SASI) depicting a behavior of the cyber-physical-system (CPS, CPS') during operation or commissioning, and ( ii ) a Digital-Twin-Unit (DTU), which in the course of "Model-based Digital-Twin-Representation" of the cyber-physical-system (CPS, CPS') creates and executes a digital twin (DT) replicating the behavior of the cyber-physical-system (CPS, CPS') and consequently producing replicated sensor/actor-signal-information (SASI rp ) by simulating the cyber-physical-system (CPS, CPS'), and when the cyber-physical-system (CPS, CPS') and the Digital-Twin-Unit (DTU) are run in parallel,
( 1 ) to detect cyclically a deviation in the behavior of the cyber-physical-system (CPS, CPS') by comparing information by information the sensor/actor-signal-information (SASI) with the replicated sensor/actor-signal-information (SASI rp ),
( 2 ) to identify a manipulation of the cyber-physical-system (CPS, CPS') if
- for each detection cycle the sensor/actor-signal-information (SASI) and the replicated sensor/actor-signal-information (SASI rp ) are different and consequently the deviation is detected, and
- the detected deviation exceeds a threshold or tolerance value (TV).

15. 发明公开

EP3134842A1 RECHENVORRICHTUNG UND VERFAHREN ZUM ERKENNEN VON ANGRIFFEN AUF EIN TECHNISCHES SYSTEM ANHAND VON EREIGNISSEN EINER EREIGNISFOLGE 有权转让
标题翻译：计算设备和方法识别攻击技术系统基于出现宴会结果
公开(公告)号：EP3134842A1
公开(公告)日：2017-03-01
申请号：EP15739205.1
申请日：2015-07-06
申请人： Siemens Aktiengesellschaft
发明人： BUSSER, Jens-Uwe , CUELLAR, Jorge , MUNZERT, Michael , PATZLAFF, Heiko , STIJOHANN, Jan
IPC分类号： G06F21/55
CPC分类号： H04L63/1425 , G06F21/554 , H04L63/1416
摘要： A computing device (10) is proposed for detecting attacks on a technical system (20) based on events of an event sequence (4). The computing device (10) has a receiving unit (1) for receiving the event sequence (4) which comprises a plurality of events, wherein an attack is determined by a specific sequence in the events in the received event sequence (4), and a checking unit (2) for checking the received event sequence (4) based on a main event which is contained in the specific sequence in events, wherein the checking unit (2) is additionally designed to carry out a pattern recognition in the received event sequence (4) based on the specific sequence in events if the main event has occurred. As the checking unit merely checks the received event sequence for the occurrence of a main event, and the more exact pattern recognition is only carried out after the main event occurs, the necessary computing expense can be reduced. In addition, a method for detecting attacks on a technical system and a computer program product for carrying out the method are also proposed.
摘要翻译：计算设备提出了用于基于事件序列的事件技术系统的攻击提供。所述计算设备具有接收单元，用于接收事件序列，它包括事件的复数，worin攻击是确定性通过在接收到的事件序列的事件的特定序列开采，以及用于基于检查接收到的事件序列中的检查单元 mainevent所有被包含在事件的特定顺序，worin检查单元被另外设计为执行图案识别基于在事件的特定顺序接收到的事件序列是否已发生的主要事件。作为检查单元仅仅检查的主事件的发生接收到的事件序列，并且更确切的模式识别的发生的主要事件之后才进行的，必要的计算费用可被减少。

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