The document discusses the development of a security model for distributed service environments like smart spaces. The goals are to develop identification, authentication, authorization and access control mechanisms for smart space platforms. Specifically for the Smart-M3 platform, the presentation covers developing a HIP-based authentication agent, mapping the smart space RDF graph to a virtual file system for access control, and initial implementation and testing of these components in Smart-M3. Future work includes further developing and integrating the HIP agent and access control mapping into the Smart-M3 platform.
Identity based proxy-oriented data uploading andKamal Spring
More and more clients would like to store their data to PCS (public cloud servers) along with the rapid development of cloud computing. New security problems have to be solved in order to help more clients process their data in public cloud. When the client is restricted to access PCS, he will delegate its proxy to process his data and upload them. On the other hand, remote data integrity checking is also an important security problem in public cloud storage. It makes the clients check whether their outsourced data is kept intact without downloading the whole data. From the security problems, we propose a novel proxy-oriented data uploading and remote data integrity checking model in identity-based public key cryptography: IDPUIC (identity-based proxy-oriented data uploading and remote data integrity checking in public cloud). We give the formal definition, system model and security model. Then, a concrete ID-PUIC protocol is designed by using the bilinear pairings. The proposed ID-PUIC protocol is provably secure based on the hardness of CDH (computational Diffie-Hellman) problem. Our ID-PUIC protocol is also efficient and flexible. Based on the original client’s authorization, the proposed ID-PUIC protocol can realize private remote data integrity checking, delegated remote data integrity checking and public remote data integrity checking.
BLOCKCHAIN-BASED SMART CONTRACTS : A SYSTEMATIC MAPPING STUDY csandit
An appealing feature of blockchain technology is smart contracts. A smart contract is
executable code that runs on top of the blockchain to facilitate, execute and enforce an
agreement between untrusted parties without the involvement of a trusted third party. In this
paper, we conduct a systematic mapping study to collect all research that is relevant to smart
contracts from a technical perspective. The aim of doing so is to identify current research topics
and open challenges for future studies in smart contract research. We extract 24 papers from
different scientific databases. The results show that about two thirds of the papers focus on
identifying and tackling smart contract issues. Four key issues are identified, namely, codifying,
security, privacy and performance issues. The rest of the papers focuses on smart contract
applications or other smart contract related topics. Research gaps that need to be addressed in
future studies are provided.
A SYSTEMATIC MAPPING STUDY ON CURRENT RESEARCH TOPICS IN SMART CONTRACTSijcsit
An appealing feature of blockchain technology is smart contracts. A smart contract is executable code that runs on top of the blockchain to facilitate, execute and enforce an agreement between untrusted parties without the involvement of a trusted third party. In this paper, we conduct a systematic mapping study to collect all research that is relevant to smart contracts from a technical perspective. The aim of doing so is to identify current research topics and open challenges for future studies in smart contract research. We extract 24 papers from different scientific databases. The results show that about two thirds of the papers focus on identifying and tackling smart contract issues. Four key issues are identified, namely, codifying, security, privacy and performance issues. The rest of the papers focuses on smart contract applications or other smart contract related topics. Research gaps that need to be addressed in future studies are provided.
Using Blockchain for Digital Identifiers. The case of LEI.sopekmir
Mirek Sopek
"Using Blockchain for Digital Identifiers: Improving Data Security and Persistence for Digital Object Identifier (DOI) and Legal Entity Identifier (LEI)”.
The E-Finance Lab and DZ BANK 2016 Fall Conference. Goethe University Frankfurt. September 1st, 2016.
Blockchain Essentials for Business Leaders - Value Propositions and Advantage...Gokul Alex
This is an Executive Leadership Workshop Program by Gokul Alex on the fundamentals and frontiers of Blockchain which is a transformative technology covering key concepts such as value proposition design, competitive advantage, operating models, value streams, architecture frameworks etc. It is a distillation of essential concepts and emerging frontiers in the world of distributed ledger technologies.
Identity based proxy-oriented data uploading andKamal Spring
More and more clients would like to store their data to PCS (public cloud servers) along with the rapid development of cloud computing. New security problems have to be solved in order to help more clients process their data in public cloud. When the client is restricted to access PCS, he will delegate its proxy to process his data and upload them. On the other hand, remote data integrity checking is also an important security problem in public cloud storage. It makes the clients check whether their outsourced data is kept intact without downloading the whole data. From the security problems, we propose a novel proxy-oriented data uploading and remote data integrity checking model in identity-based public key cryptography: IDPUIC (identity-based proxy-oriented data uploading and remote data integrity checking in public cloud). We give the formal definition, system model and security model. Then, a concrete ID-PUIC protocol is designed by using the bilinear pairings. The proposed ID-PUIC protocol is provably secure based on the hardness of CDH (computational Diffie-Hellman) problem. Our ID-PUIC protocol is also efficient and flexible. Based on the original client’s authorization, the proposed ID-PUIC protocol can realize private remote data integrity checking, delegated remote data integrity checking and public remote data integrity checking.
BLOCKCHAIN-BASED SMART CONTRACTS : A SYSTEMATIC MAPPING STUDY csandit
An appealing feature of blockchain technology is smart contracts. A smart contract is
executable code that runs on top of the blockchain to facilitate, execute and enforce an
agreement between untrusted parties without the involvement of a trusted third party. In this
paper, we conduct a systematic mapping study to collect all research that is relevant to smart
contracts from a technical perspective. The aim of doing so is to identify current research topics
and open challenges for future studies in smart contract research. We extract 24 papers from
different scientific databases. The results show that about two thirds of the papers focus on
identifying and tackling smart contract issues. Four key issues are identified, namely, codifying,
security, privacy and performance issues. The rest of the papers focuses on smart contract
applications or other smart contract related topics. Research gaps that need to be addressed in
future studies are provided.
A SYSTEMATIC MAPPING STUDY ON CURRENT RESEARCH TOPICS IN SMART CONTRACTSijcsit
An appealing feature of blockchain technology is smart contracts. A smart contract is executable code that runs on top of the blockchain to facilitate, execute and enforce an agreement between untrusted parties without the involvement of a trusted third party. In this paper, we conduct a systematic mapping study to collect all research that is relevant to smart contracts from a technical perspective. The aim of doing so is to identify current research topics and open challenges for future studies in smart contract research. We extract 24 papers from different scientific databases. The results show that about two thirds of the papers focus on identifying and tackling smart contract issues. Four key issues are identified, namely, codifying, security, privacy and performance issues. The rest of the papers focuses on smart contract applications or other smart contract related topics. Research gaps that need to be addressed in future studies are provided.
Using Blockchain for Digital Identifiers. The case of LEI.sopekmir
Mirek Sopek
"Using Blockchain for Digital Identifiers: Improving Data Security and Persistence for Digital Object Identifier (DOI) and Legal Entity Identifier (LEI)”.
The E-Finance Lab and DZ BANK 2016 Fall Conference. Goethe University Frankfurt. September 1st, 2016.
Blockchain Essentials for Business Leaders - Value Propositions and Advantage...Gokul Alex
This is an Executive Leadership Workshop Program by Gokul Alex on the fundamentals and frontiers of Blockchain which is a transformative technology covering key concepts such as value proposition design, competitive advantage, operating models, value streams, architecture frameworks etc. It is a distillation of essential concepts and emerging frontiers in the world of distributed ledger technologies.
Presentation on cloud computing security issues using HADOOP and HDFS ARCHITE...Pushpa
we discuss security issues for cloud computing and present a layered framework for secure clouds and then focus on two of the layers, i.e., the storage layer and the data layer. In particular, we discuss a scheme for secure third party publications of documents in a cloud. Next, we will converse secure federated query processing with map Reduce and Hadoop, and discuss the use of secure co-processors for cloud computing. Finally, we discuss XACML implementation for Hadoop and discuss their beliefs that building trusted applications from untrusted components will be a major aspect of secure
cloud computing.
As the technology is increasing more number of clients would like to store their data in the public cloud. As the cloud offer client to store large amount of data and can use the data from anywhere using the internet. New security problems need to be solved to give intact to the client data available in the cloud. Client has to feel that their outsourced data is in the protected way in the cloud. From the security problems we propose “A NOVEL APPROACH FOR DATA UPLOADING AND REMOTE DATA INTEGRITY CHECKING BASED ON PUBLIC KEY CRYPTOGRAPHY” (ANDURIC-PKC). We will give the formal definition, system model and security model. Then a concrete ANDURIC-PKC protocol is built by using Generic group model and certificate management is not required. This protocol is efficient and flexible, this may be provably secured by using Computational Diffie-Hellman problem. Based on the original client authorization, the proposed protocol can realize the data integrity checking.
Improving Efficiency of Security in Multi-CloudIJTET Journal
Abstract--Due to risk in service availability failure and the possibilities of malicious insiders in the single cloud, a movement towards “Multi-clouds” has emerged recently. In general a multi-cloud security system there is a possibility for third party to access the user files. Ensuring security in this stage has become tedious since, most of the activities are done in network. In this paper, an enhanced security methodology has been introduced in order to make the data stored in cloud more secure. Duple authentication process introduced in this concept defends malicious insiders and shields the private data. Various disadvantages in traditional systems like unauthorized access, hacking have been overcome in this proposed system and a comparison made with the traditional systems in terms of performance and computational time have shown better results.
Messages addressed to specific users can be decrypted by Key Generation Centre (KGC) by generating their private keys. Data owner wants the data to be delivered only to specified user and not to unauthorized person that is the data owner makes their private data accessible only to authorized person. We propose attribute based encryption and escrow problem which means written agreement delivered to a third party to overcome this problem. Attribute based Encryption (ABE) is a type of public-key encryption in which the private key of a user and the cipher text are dependent upon attributes. It is a promising cryptographic approach.
In 2003, the DoD CIO published the "Net-Centric Data Strategy". This briefing was a collection of the many slides that we used between 2003-2006 to articulate the concepts of the strategy and the value of information sharing. It addresses the essentials of Net-Centricity, the goals and approaches of the Data Strategy, Communities of Interest, Common Operational Picture COP) vs. User-Defined Operational Picture (UDOP).
Data Sharing with Sensitive Information Hiding in Data Storage using Cloud Co...ijtsrd
With cloud storage services, users can remotely store their data to the cloud and realize the data sharing with others. Remote data integrity auditing scheme is proposed to guarantee the integrity of the data stored in the cloud. In some common cloud storage systems such as the Electronic Health Records EHRs system, the cloud file might contain some sensitive information. The sensitive information should not be exposed to others when the cloud file is shared. Encrypting the whole shared file can realize the sensitive information hiding, but will make this shared file unable to be used by others. How to realize data sharing with sensitive information hiding in remote data integrity auditing still has not been explored up to now. In order to address this problem, we propose a remote data integrity auditing scheme that realizes data sharing with sensitive information hiding in this system. Paruvathavarthini M | Prasuna K S | Sermakani. A. M ""Data Sharing with Sensitive Information Hiding in Data Storage using Cloud Computing"" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-2 , February 2020,
URL: https://www.ijtsrd.com/papers/ijtsrd30007.pdf
Paper Url : https://www.ijtsrd.com/engineering/information-technology/30007/data-sharing-with-sensitive-information-hiding-in-data-storage-using-cloud-computing/paruvathavarthini-m
An Efficient User Privacy and Protecting Location Content in Location Based S...IJRST Journal
In location-based query a user wants to query a database of location data, known as Points Of Interest (POIs), and does not want to reveal his/her location to the server due to privacy concerns; (ii) the owner of the location data, that is, the location server, do Abstract: Nowadays, it is very easy for a person to learn his/her location with the help of a Global Positioning System (GPS) enabled device. A location s not want to simply distribute its data to all users. The location server desires to have some control over its data, since the data is its asset. A major enhancement upon previous solutions by introducing a two stage approach, the first step is based on Oblivious Transfer using homomorphic encryption and the second step is based on Private Information Retrieval, to achieve a secure solution for both parties. Introduce a security model and analyse the security in the context of our protocol. To highlight a security weakness of our previous work and present a solution using efficient homomorphic system.
Two Level Auditing Architecture to Maintain Consistent In Cloudtheijes
The International Journal of Engineering & Science is aimed at providing a platform for researchers, engineers, scientists, or educators to publish their original research results, to exchange new ideas, to disseminate information in innovative designs, engineering experiences and technological skills. It is also the Journal's objective to promote engineering and technology education. All papers submitted to the Journal will be blind peer-reviewed. Only original articles will be published.
The papers for publication in The International Journal of Engineering& Science are selected through rigorous peer reviews to ensure originality, timeliness, relevance, and readability.
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Welcome to the next edition of our Monthly Digest, your one-stop resource for staying informed on the most recent developments, insights, and best practices in the ever-evolving field of security. In this issue, we have curated a diverse collection of articles, news, and research findings tailored to both professionals and casual enthusiasts. Our digest aims to make our content is both engaging and accessible. Happy reading
(https://boosty.to/overkill_security + check original source urls inside)
Welcome to the next edition of our Monthly Digest, your one-stop resource for staying informed on the most recent developments, insights, and best practices in the ever-evolving field of security. In this issue, we have curated a diverse collection of articles, news, and research findings tailored to both professionals and casual enthusiasts. Our digest aims to make our content is both engaging and accessible. Happy reading
Vehicular conveyed processing (VCC) is made from different circled vehicular fogs (VCs), which are outlined on-the-fly by intensely consolidating underutilized vehicular resources including figuring force, accumulating, and so forth. Existing recommendation for lifestyle as-a-organization (IDaaS) are not suitable for use in that frame of mind of confined handling resources and limit cutoff of introduced vehicle devices. we at first propose an improved ciphertext-methodology trademark based encryption (CPABE) plot.
Короткое знакомство с Mongo; Коротко про GeoJson; Какие данные можно хранить в Mongo; Как хранить геоданные в Mongo; Как индексировать геоданные; Как выполнять запросы к данным (поиск объектов рядом/внутри/на пересечении с областями); Примеры использования геовозможностей MongoDb в Geo2Tag
Fast Artificial Landmark Detection for indoor mobile robots AIMAVIG'2015OSLL
Nowadays the big challenge in simultaneous local-
ization and mapping (SLAM) of mobile robots is the creation
of efficient and robust algorithms. Significant Number of SLAM
algorithms rely on unique features or or use artificial landmarks
received from camera images. Feature points and landmarks
extraction from images have two significant drawbacks: CPU
consumption and weak robustness depending on environment
conditions. In this paper we consider performance issues for
landmark detection, introduce a new artificial landmark design
and fast algorithm for detecting and tracking them in arbitrary
images. Also we provide results of performance optimization for
different hardware platforms.
Ceph является одной из мнообещающих архитектур для построения облачных хранилищ данных. В презентации приведены основные возможности, описана архитектура, дан краткий обзор команд CLI
Linux Control Groups (Контрольные группы) -- механизм, позволяющий управлять группами процессов в Linux и их ресурсами. Это мощный инструмент о котором знают далеко не все. Презентация дает краткий обзор.
В презентации описан опыт создания робота с нуля на базе Raspberry Pi и недорогих актуаторов и сенсоров. Представлены примеры двух разработанных поколений роботов, детально описана одна из последних версий, собранная на базе деталей конструктора Trik. Описанная модель имеет дифференциальное управление (используются два мотора с энкодерами), ультразвуковой сенсор, камеру. Питание организовано от 11.1V батареи через UBEC. Прошивка робота реализована на базе ROS и состоит из нескольких модулей.
Виртуализация уровня операционной системы в Linux (так, называемые контейнеры) опирается на изоляцию ресурсов и на управление их использованием. Пространства имен в Linux (linux namespaces) тот инструмент, который позволяет изолировать ресурсы друг от друга на уровне имен. Например, именами процессов являются их идентификаторы (PIDs), которые можно организовать таким образом, что процессы никогда не могут узнать о существовании друг друга. Об этом и других интересных вещах рассказывается в презентации.
Virtual-HSM: Virtualization of Hardware Security Modules in Linux ContainersOSLL
In the report the technology of virtual security modules will be presented. It rely on Linux containers. The report should be interesting for those people who are planning (or already using) could services for building IT-infrastructure.
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1. Distributed service environment
(smart spaces) security model
development
Kirill Yudenok, Kirill Krinkin
FRUCT LETI Lab,
Open Source & Linux Lab
FRUCT 12th, Oulu, November, 2012
2. Agenda
Motivation;
Goal and tasks;
Current Smart-M3 security;
Security model development;
Smart-M3 security realization:
HIP-agent;
smart space RDF-graph mapping to the virtual file
system (VFS);
What was done?
Future research and development;
FRUCT 12th 8 Nov 2012 2
3. Motivation
access control mechanism for the smart space
platform, for example Smart-M3;
protection information mechanism of the space;
research information security within the smart
space area.
FRUCT 12th 8 Nov 2012 3
4. Goal and Tasks
The project goal
Development a security model for distributed service
environment (smart spaces, SS), access control algorithms and
test developed components as a part of the SS Smart-M3
platform;
The main tasks of the project
investigation of the basic security models and creation own
security solutions;
development a security model for Smart Spaces;
modeling and development security model components for the
Smart-M3 platform;
testing developed components and algorithms within the
Smart-M3 platform;
FRUCT 12th 8 Nov 2012 4
5. Smart-M3 security
What do we have?
access control at triple level [1];
context-based and access control policies;
security objects as triple patterns;
What do we want?
identification and authentication mechanism of the SS
subjects;
authorization and access control mechanism of SS subjects;
data privacy;
[1] A.D’Elia, J.Honkola, D.Manzaroli, T.S.Cinotii – Access Control at Triple Level: Specification and Enforcement of a
Simple RDF Model to Support Concurrent Applications in Smart Environments, 2011.
FRUCT 12th 8 Nov 2012 5
6. Security model development
Identification and authentication of space subjects:
HIP, PAM;
Authorization and access control of space subjects:
discretionary security model;
smart space RDF-graph mapping to the virtual file
system (VFS);
named graphs;
access control ontology;
security extensions for smart space database.
FRUCT 12th 8 Nov 2012 6
7. Smart-M3 security realization
Identification and authentication mechanisms
prospective architecture of HIP-agent;
interaction of HIP-agent components.
Authorization and access control mechanisms
smart space RDF-graph mapping to the VFS;
intermediate solution of the graph mapping;
implementation mechanism to the Smart-M3 platform.
FRUCT 12th 8 Nov 2012 7
8. Prospective architecture of HIP-agent
Identification and
authentication of the
client:
1. Client connection
request to the SS;
2. Request intercepting by
the HIP-agent;
3. Protocol-based HIP
identification and
authentication of the
client.
FRUCT 12th 8 Nov 2012 8
9. Interaction of HIP-agent components
The process of SIB HIP-agent Client
connecting the client to
hash, SS, request
the space:
1. Transmission the client
hash key to HIP-agent;
hash valid?
2. Checking validity of the
hash key; hash valid
3. Identification and hash, SS, response
authentication of the
client;
4. Connection to the SS.
FRUCT 12th 8 Nov 2012 9
10. Smart Space RDF-graph mapping
information of SS is stored in a relational database, smart
space database (SQLite);
information of SS is presented in triple form (S, P, O);
set of triples stored in specific database tables;
Solution: The virtual FS, that mapping information of SS
in a certain directory structure.
FRUCT 12th 8 Nov 2012 10
11. The updated directory structure of VFS
provide more accuracy right to triplets (information)
of the space;
FRUCT 12th 8 Nov 2012 11
12. The intermediate solution of the graph mapping
Working with SS database: get all triples and save them
in memory of data structure (SQLite):
receiving all objects, subjects, predicates and their
values;
Creating a VFS directory structure based on the data:
creating of virtual FS using FUSE technology (fusekit),
setting permissions;
FRUCT 12th 8 Nov 2012 12
13. Implementation mechanism to the Smart-M3 platform
modification of Smart-M3 platform piglet module:
piglet proxy creation for new extensions;
replacement of all smart space database
operations to mapping FS operations;
determine and verify client access permissions;
testing operations on the client side.
FRUCT 12th 8 Nov 2012 13
15. What was done?
analyzed and designed the HIP protocol-based
mechanism of identification and authentication;
the mechanism of authorization and SS subjects access
control by mapping RDF-graph to the virtual file system
is developed; mechanism tested in the Smart-M3
platform;
the implementation process of HIP-agent and mapping
mechanism to the Smart-M3 platform is started;
FRUCT 12th 8 Nov 2012 15
16. Future research and development
Main
HIP-agent development;
implementation of mapping model to Smart-M3
platform;
set permissions tool development for mapping FS;
Additional
named graph authorization system development;
adding developed mechanisms to new version of Smart-
M3 platform (Redland);
FRUCT 12th 8 Nov 2012 16