Raftul cu initiativa Book Archive


Secure Data Management in Decentralized Systems by Ting Yu, Sushil Jajodia

By Ting Yu, Sushil Jajodia

The study scope of database safety has multiplied tremendously, because of the fast improvement of the worldwide inter-networked infrastructure. Databases are not any longer stand-alone platforms which are in basic terms available to inner clients of businesses. as an alternative, permitting selective entry from assorted defense domain names has turn into a needs to for plenty of company practices.

New information prone are rising each day, which additionally brings new demanding situations to guard info protection. the web and the net provide potential for gathering and sharing info with extraordinary flexibility and comfort. Secure facts administration in Decentralized Systems identifies and addresses those new demanding situations. This quantity provides a variety of lively parts, heavily relating to database safeguard via uncommon leaders inside this box. recommendations are included.

Secure info administration in Decentralized Systems is designed for a certified viewers composed of practitioners and researchers in undefined. This publication is appropriate for graduate-level scholars in computing device technology as well.

Show description

Read or Download Secure Data Management in Decentralized Systems PDF

Similar comptia books

Internet Security Cryptographic Principles Algorithms and Protocols

Wisdom of quantity conception and summary algebra are pre-requisites for any engineer designing a safe internet-based process. even if, lots of the books at present on hand at the topic are geared toward practitioners who simply need to know how a few of the instruments on the market paintings and what point of safeguard they communicate.

CompTIA A+ 220-701 and 220-702 Cert Guide

Enable me begin via announcing that this present day I took the 220-701, the 1st of the necessary assessments. I handed with a rating of 775, which as most sensible i will be able to determine correlates to among eighty five and ninety on a a hundred aspect scale. My learn used to be totally self-directed and consisted of utilizing 4 assorted books, the A+ video sequence from ok Alliance and examination prep software program from [.

Pro PHP Security (Pro)

Hypertext Preprocessor is the world’s most well-liked open resource internet scripting language, put in on nearly 17 million domain names world wide (www. personal home page. net/usage. php). it really is enjoyed via rookies and embraced by way of complex clients. This booklet deals builders a whole advisor to taking either protecting and proactive safety techniques inside of their Hypertext Preprocessor functions.

Secure Data Management in Decentralized Systems

The study scope of database safeguard has accelerated significantly, end result of the quick improvement of the worldwide inter-networked infrastructure. Databases aren't any longer stand-alone platforms which are merely available to inner clients of companies. in its place, permitting selective entry from diversified protection domain names has develop into a needs to for plenty of enterprise practices.

Additional info for Secure Data Management in Decentralized Systems

Sample text

Credentials are essentially digital certificates, and must be unforgeable and verifiable through the issuing certificate authority's public key; declarations are instead statements made by the user herself, that autonomously issues a declaration. Abstractions can be defined on services, grouping them in sets, called classes. The main advantage of this proposal is that it allows to exchange the minimal set of certificates, that is, client communicates the minimal set of certificates to the server, and the server releases the minimal set of conditions required for granting access.

Given a set of authorizations explicitly specified over the elements in the system, it is possible to obtain a set of derived authorizations obtained according to a hierarchy-based derivation. Some of the most common propagation policies (which include also some resolution policies for possible conflicts) are described below [26]. No propagation. Authorizations are not propagated. For instance, a triple specified for a node is not propagated to its descendants. No propagation is applicable when non-leaf nodes can appear in an access request and therefore authorizations that apply to them as subjectlobject must be considered (as it is, for example, the case of roles).

The backtracking can be executed according to different strategies. For instance, a brute-force backtracking is complete and correct, but is too expensive to be used in a real scenario. The authors therefore propose the PRUNES method that prunes the search tree without compromising completeness or correctness of the negotiation process. The basic idea is that if a credential C has just been evaluated and the state of the system is not changed too much, than it is useless to evaluate again the same credential, as the result will be exactly as the result previously computed.

Download PDF sample

Rated 4.85 of 5 – based on 46 votes