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Extracting Secrets from Encrypted Virtual Machines 19

Extracting Secrets from Encrypted Virtual Machines

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9th acm conference on data and application security and privacy (CODASPY)

作者： Morbitzer, Mathias Huber, Manuel Horsch, Julian Fraunhofer AISEC Garching Germany

ISBN: (纸本)9781450360999

AMD SEV is a hardware extension for main memory encryption on multi-tenant systems. SEV uses an on-chip coprocessor, the AMD Secure Processor, to transparently encrypt virtual machine memory with individual, ephemeral keys never leaving the coprocessor. the goal is to protect the confidentiality of the tenants' memory from a malicious or compromised hypervisor and from memory attacks, for instance via cold boot or DMA. the SEVered attack has shown that it is nevertheless possible for a hypervisor to extract memory in plaintext from SEV-encrypted virtual machines without access to their encryption keys. However, the encryption impedes traditional virtual machine introspection techniques from locating secrets in memory prior to extraction. this can require the extraction of large amounts of memory to retrieve specific secrets and thus result in a time-consuming, obvious attack. We present an approach that allows a malicious hypervisor quick identification and theft of secrets, such as TLS, SSH or FDE keys, from encrypted virtual machines on current SEV hardware. We first observe activities of a virtual machine from within the hypervisor in order to infer the memory regions most likely to contain the secrets. then, we systematically extract those memory regions and analyze their contents on-the-fly. this allows for the efficient retrieval of targeted secrets, strongly increasing the chances of a fast, robust and stealthy theft.

关键词： AMD SEV virtual machine encryption virtual machine introspection memory extraction data confidentiality

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Understanding the Responsiveness of Mobile App Developers to Software Library Updates 19

Understanding the Responsiveness of Mobile App Developers to...

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9th acm conference on data and application security and privacy (CODASPY)

作者： Yasumatsu, Tatsuhiko Watanabe, Takuya Kanei, Fumihiro Shioji, Eitaro Akiyama, Mitsuaki Mori, Tatsuya Waseda Univ Tokyo Japan NTT Secure Platform Labs Tokyo Japan RIKEN AIP Tokyo Japan

ISBN: (纸本)9781450360999

this paper reports a longitudinal measurement study aiming to understand how mobile app developers are responsive to updates of software libraries over time. To quantify their responsiveness to library updates, we collected 21,046 Android apps, which equated 142,611 unique application package kit (APK) files, each corresponding to a different version of an app. the release dates of these APK files spanned across 9 years. the key findings we derived from our analysis are as follows. (1) We observed an undesirable level of responsiveness of app developers;50% of library update adoptions by app developers were performed for more than 3 months after the release date of the library, and 50% of outdated libraries used in apps were retained for over 10 months. (2) Deploying a security fix campaign in the app distribution market effectively reduced the number of apps with unfixed vulnerabilities;however, CVE-numbered vulnerabilities (without a campaign) were prone to remain unfixed. (3) the responsiveness of app developers varied and depended on multiple factors, for example, popular apps with a high number of installations had a better response to library updates and, while it took 77 days on average for app developers to adopt version updates for advertising libraries, it took 237 days for updates of utility libraries to be adopted. We discuss practical ways to eliminate libraries with vulnerabilities and to improve the responsiveness of app developers to library updates.

关键词： Android security Mobile Apps Measurement Software Library Mobile App Developers

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the Influence of Users privacy and Discomfort on Using Healthcare Information System 19

The Influence of Users Privacy and Discomfort on Using Healt...

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5th International conference on e-Society, e-Learning and e-Technologies (ICSLT)

作者： Saad, Alsaleh Saudi Minist Hlth Hail Hlth Directory Riyadh Saudi Arabia

ISBN: (纸本)9781450362351

Ensuring the user comfort and privacy in the Healthcare Information System (HIS) plays essential roles to accept and use any of HISs. this proposal aims to explore and examine the influence of users privacy and discomfort on using the HIS and applications which have been developed by the Saudi Ministry of Health (SMOH). the in-depth understanding of both factors is critical for large-scale acceptance of electronic health services. the researcher will conduct a quantitative research to achieve this aim and the Technology Acceptance Model (TAM) will be used to guide the research. Questioners will be distributed to collect the data from selected hospitals and primary healthcare centers within the Kingdom of Saudi Arabia (KSA). the researcher will use the SPSS Statistics software to analyze the primary data statistically. As an implication, examining of HISs implementation on why and how users accept them will help healthcare decision makers to understand the impact of human factors on using their system and mitigate user discomfort and privacy issue concerns. the study results would expand an area of healthcare systems and applications in the KSA, which is still empirically not adequately explored.

关键词： Healthcare information system healthcare applications human factors privacy discomfort security

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the Design of Smart Cashless Transaction 2020

The Design of Smart Cashless Transaction

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5th International conference on Intelligent Information Technology, ICIIT 2020

作者： Fernando, Anthony Bryan Shreevasta Desprianto, Ferry Gaol, Ford Lumban Oktavia, Tanty Mobile Application and Technology-School of Computer Science Bina Nusantara University Jakarta Indonesia Computer Science Department BINUS Program-Doctor of Computer Science Bina Nusantara University Jakarta Indonesia Information Systems Department-School of Information Systems Bina Nusantara University Jakarta Indonesia

ISBN: (纸本)9781450376594

Cashless Transaction describes as a state where financial transactions are not bound by physical form such as banknotes or coins, but rather trough transfer of digital information (electronic representation of money). Cashless Transaction exists because of fast majorities of human transaction evolved towards digital environment, this creates an opportunity where legal money exists, recorded, and exchanged in digital form. thus cashless transaction will make less effort in currency operation cost, keep on track with expenses, connected anytime everywhere as long as connected with internet, and eliminates the needs of banknotes or receipt. Cashless Transaction have done over the past few years making life easier by reducing a number of objects to merge into 1 functional object that could make payments faster and simpler starting with check the first mark of cashless transaction that's still being used nowadays, but cashless transaction doesn't stop evolving in this modern era where money is demonetized, cashless transaction is moving into the digital grid resulting a breakthrough mobile wallets and online transfer that offers people flexibility because its technology advancement makes it possible to make payments anytime and anywhere since it's only depend on a secure network(internet) and a platform, therefore cashless transaction could be done as fast as possible saving precious time. Cashless transaction has some of key components such as security, UX, Functionality, Performance and data Integrity. Five key components could make cashless transaction become reality but also poses a different threat to cashless transaction. Hacking is one of them. Hacking could be done by anyone that have the ability to compromise the transmission, the transmission needs to have more data protection thus the cashless transaction could be done safely and free of risk. © 2020 acm.

关键词： Personal computing

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security Requirements in Intelligent Transportation System: A systematic review 5

Security Requirements in Intelligent Transportation System: ...

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5th International conference on Computing, Communication Control and Automation (ICCUBEA)

作者： Sharma, Mini State Inst Rural Dev Dept Comp Sci & Engn Ranchi Jharkhand India

ISBN: (纸本)9781728140421

Cars in modern life have become the most essential elements and with increase in the number of cars nowadays, many problems arise such as pollution, traffic jams, etc. Intelligent Transportation System (ITS) provides innovative services to counter different modes of traffic management and transport. these enable users to make safe, coordinated and efficient use of transport networks. In order to capture accurate traffic models, many ITS expect users to contribute captured data by sensors of personal mobile devices. this makes the mobile devices behave as ubiquitous sensing devices that can cover any area where the users are present. Sharing such sensitive data may lead to security and privacy concerns for users like disclosing the location of user to some unattended audience. thus, security must be the considered for ITS application. Recently ITS provided efficient solutions for improvement of the performance of traffic systems, increased safety and security for travelers, and reduced traffic congestion. the ITS architecture is costly and complex due to inclusion of diverse data sources and heterogeneous devices. thus, for a cost-effective and efficient ITS architecture, it must employ easy mechanisms for different transport subsystems interactions. Recent technologies like cloud computing, grid computing and service-oriented architectures (SOA) enables a loosely-coupled and reliable distributed systems. Due to large amount of information or data, ITS development is slowly changing from technology-driven system to data-driven system. A data-driven ITS was designed to optimize its performance.

关键词： security privacy intelligent transportation system wireless sensor networks data modification attacks

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A Practical Intel SGX Setting for Linux Containers in the Cloud 19

A Practical Intel SGX Setting for Linux Containers in the Cl...

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9th acm conference on data and application security and privacy (CODASPY)

作者： Tian, Dave (Jing) Choi, Joseph, I Hernandez, Grant Traynor, Patrick Butler, Kevin R. B. Univ Florida Gainesville FL 32611 USA

ISBN: (纸本)9781450360999

With close to native performance, Linux containers are becoming the de facto platform for cloud computing. While various solutions have been proposed to secure applications and containers in the cloud environment by leveraging Intel SGX, most cloud operators do not yet offer SGX as a service. this is likely due to a number of security, scalability, and usability concerns coming from both cloud providers and users. Cloud operators worry about the security guarantees of unofficial SDKs, limited support for remote attestation within containers, limited physical memory for the Enclave Page Cache (EPC) making it difficult to support hundreds of enclaves, and potential DoS attacks against EPC by malicious users. Meanwhile, end users need to worry about careful program partitioning to reduce the TCB and adapting legacy applications to use SGX. We note that most of these concerns are the result of an incomplete infrastructure, from the OS to the application layer. We address these concerns with lxcsgx, which allows SGX applications to run inside containers while also: enabling SGX remote attestation for containerized applications, enforcing EPC memory usage control on a per-container basis, providing a general software TPM using SGX to augment legacy applications, and supporting partitioning with a GCC plugin. We then retrofit Nginx/OpenSSL and Memcached using the software TPM and SGX partitioning to defend against known and potential attacks. thanks to the small EPC footprint of each enclave, we are able to run up to 100 containerized Memcached instances without EPC swapping. Our evaluation shows the overhead introduced by lxcsgx is less than 6.9% for simple SGX applications, 9.5% for Nginx/OpenSSL, and 20.9% for containerized Memcached.

关键词： Cloud Containers security SGX

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Identification and Extraction of Digital Forensic Evidence from Multimedia data Sources using Multi-algorithmic Fusion 5th

Identification and Extraction of Digital Forensic Evidence f...

引用

5th International conference on Information Systems security and privacy (ICISSP)

作者： Mashhadani, Shahlaa Clarke, Nathan Li, F. Plymouth Univ Ctr Secur Commun & Network Res Plymouth Devon England Coll Educ Pure Sci Comp Sci Dept Baghdad Iraq Edith Cowan Univ Secur Res Inst Perth WA Australia Univ Portsmouth Sch Comp Portsmouth Hants England

ISBN: (纸本)9789897583599

With the enormous increase in the use and volume of photographs and videos, multimedia-based digital evidence has come to play an increasingly fundamental role in criminal investigations. However, given the increase in the volume of multimedia data, it is becoming time-consuming and costly for investigators to analyse the images manually. therefore, a need exists for image analysis and retrieval techniques that are able to process, analyse and retrieve images efficiently and effectively. Outside of forensics, image annotation systems have become increasingly popular for a variety of purposes and major software/IT companies, such as Amazon, Microsoft and Google all have cloud-based image annotation systems. the paper presents a series of experiments that evaluate commercial annotation systems to determine their accuracy and ability to comprehensively annotate images within a forensic image analysis context (rather than simply single object imagery, which is typically the case). the paper further proposes and demonstrates the value of utilizing a multi-algorithmic approach via fusion to achieve the best results. the results of these experiments show that by existing systems the highest Average Recall was achieved by imagga with 53%, whilst the proposed multi-algorithmic system achieved 77% across the selected datasets. these results demonstrate the benefit of using a multi-algorithmic approach.

关键词： Digital Forensics Multimedia Forensics Automatic Image Annotation Fusion

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Blockchain-based privacy-preserving authentication and message dissemination scheme for VANET 5

Blockchain-based privacy-preserving authentication and messa...

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5th International conference on Systems, Control and Communications, ICSCC 2019

作者： Guehguih, Bachira Lu, Hongwei School of Computer Science and Technology Huazhong University of Science and Technology Wuhan430047 China

ISBN: (纸本)9781450372640

the vehicular ad hoc network (VANET) is an intelligent transportation system application that aims to ensure the security of road traffic information over V2V communication and V2I communication. In this paper, we propose a blockchain-based privacy-preserving authentication scheme in VANETs. We explore the strategy of a local blockchain for VANETs. We make use of a private blockchain for authentication and a public blockchain for managing event messages. the trusted authority (TA) is responsible for making the transactions in the private blockchain within the boundary of the countries, the transactions are the identity information required for authentication of vehicles when they join the network for the first time, the other vehicles have the right to read and check from the private blockchain the authenticity of a new vehicle. the public blockchain is used for storing the event messages within the boundary of pre-defined regions to ensure the security of message dissemination, we called this kind of blockchain road-side unit blockchain (RSU-BC) because it takes the role of RSU in a VANET. In this way, we eliminate the necessity of RSU's deployment in VANETs and reduce the dependency on the TA. By way of security analysis and security-proofing, we prove that our scheme satisfies multiple security and privacy requirements and can resist many attacks, while the performance analysis shows the efficiency of the scheme in terms of computation overheads and communication overheads. © 2019 acm International conference Proceeding Series. All rights reserved.

关键词： Vehicular ad hoc networks

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2nd International Workshop on Information and Operational Technology (IT and OT) security systems, IOSec 2019, the 1st International Workshop on Model-driven Simulation and Training Environments, MSTEC 2019, and the 1st International Workshop on security for Financial Critical Infrastructures and Services, FINSEC 2019, held in conjunction with the 24th European Symposium on Research in Computer security, ESORICS 2019

2nd International Workshop on Information and Operational Te...

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2nd International Workshop on Information and Operational Technology (IT and OT) security systems, IOSec 2019, the 1st International Workshop on Model-driven Simulation and Training Environments, MSTEC 2019, and the 1st International Workshop on security for Financial Critical Infrastructures and Services, FINSEC 2019, held in conjunction with the 24th European Symposium on Research in Computer security, ESORICS 2019

ISBN: (纸本)9783030420505

the proceedings contain 18 papers. the special focus in this conference is on Information and Operational Technology (IT and OT) security systems. the topics include: Finsec 2019 preface;a Comprehensive Technical Survey of Contemporary Cybersecurity Products and Solutions;An Open and Flexible Cybersecurity Training Laboratory in IT/OT Infrastructures;PROTECT – An Easy Configurable Serious Game to Train Employees Against Social Engineering Attacks;model-Driven Cyber Range Training: A Cyber security Assurance Perspective;towards the Insurance of Healthcare Systems;the thREAT-ARREST Cyber-security Training Platform;dAPTaset: A Comprehensive Mapping of APT-Related data;blockchain Based Sharing of security Information for Critical Infrastructures of the Finance Sector;Bunkers: Jail application Level Firewall for the Mitigation and Identification of Service Takeover Attacks on HardenedBSD;A Language-Based Approach to Prevent DDoS Attacks in Distributed Financial Agent Systems;cyberSure: A Framework for Liability Based Trust;deploying Fog-to-Cloud Towards a security Architecture for Critical Infrastructure Scenarios;Event-Based Remote Attacks in HTML5-Based Mobile Apps;Horizontal Attacks Against ECC: From Simulations to ASIC;Web Servers Protection Using Anomaly Detection for HTTP Requests;you Shall Not Register! Detecting privacy Leaks Across Registration Forms;a Model Driven Approach for Cyber security Scenarios Deployment.

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ICCAI 2019 - 2019 5th International conference on Computing and Artificial Intelligence

ICCAI 2019 - 2019 5th International Conference on Computing ...

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5th International conference on Computing and Artificial Intelligence, ICCAI 2019

ISBN: (纸本)9781450361064

the proceedings contain 46 papers. the topics discussed include: popularity prediction for artists based on user songs dataset;assessing CSU students’ academic performance on iLearn portal using data analytics;characterization of disaster related tweets according to its urgency: a pattern recognition;using big data analysis to retain customers for telecom industry;methods of neural network analysis of oilfield data;a novel NLP application to automatically generate text extraction concepts from textual descriptions;algorithm of recurring concept drift base on main feature extraction;virtual public cloud model in honeypot for data security: a new technique;a hybrid similarity measure based on binary and decimal data for data mining;proposing automatic dataset generation system to support android sensitive data leakage detection;and an investigation of the situation of the using handheld devices on learning mathematics of high school teachers in mainland China.

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