human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "cross site scripting attacks on android webview"
  Abstract: WebView is an essential component in Android and iOS. It enables applications to display content from on-line resources. It simplifies task of performing a network request, parsing the data and rendering it. WebView uses a number of APIs which can interact with the web contents inside WebView. In the current paper, Cross-site scripting attacks or XSS attacks specific to Android WebView are discussed. Cross site scripting (XSS) is a type of vulnerability commonly found in web applications. This vulnerability makes it possible for attackers to run malicious code into victim's WebView,through HttpClient APIs. Using this malicious code, the attackers can steal the victim's credentials, such as cookies. The access control policies (that is,the same origin policy) employed by the browser to protect those credentials can be bypassed by exploiting the XSS vulnerability.

Connected through hyperedge HE-1 (induced by source paper "babelview evaluating the impact of code injection attacks in mobile webviews"):
  with members:
    - "measuring the declared sdk versions and their consistency with api calls in android apps"

Connected through hyperedge HE-2 (induced by source paper "android inter app communication threats and detection techniques"):
  with members:
    - "towards automated android app collusion detection"
    - "android security framework enabling generic and extensible access control on android"
    - "a case of collusion a study of the interface between ad libraries and their apps"
    - "adsplit separating smartphone advertising from applications"
    - "dexpler converting android dalvik bytecode to jimple for static analysis with soot"
    - "quire lightweight provenance for smart phone operating systems"

Connected through hyperedge HE-3 (induced by source paper "evaluation of security solutions for android systems"):
  with members:
    - "security issues in the android cross layer architecture"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.CR(Cryptography and Security)