About: Secure Logistical Networking in Virtual Organizations     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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Description
  • Datová úložiště, propojená vysokorychlostní sítí, mohou sloužit jako uzly distribuovaného datového prostoru s vysokou kapacitou a přijatelnou cenou. Takovýto datový prostor lze zpřístupnit prostřednictvím IBP protokolu, který nabízí nezaručenou službu ukládání datových bloků. Protokol rovněž nevyžaduje autentizaci uživatelů a~autorizace je řešena pouze formou vlastnictví metadat. V rámci projektu Protokoly a aplikace datových skladů (PADS) jsme proto navrhli bezpečnostní rozšíření protokolu IBP tak, aby distribuovaný systém podporoval striktní autentizaci a autorizaci uživatelů. Tato rozšíření musí splňovat následující tři základní požadavky: (i) klient musí být důvěryhodně autentizován, (ii) klient musí být autorizován a (iii) každá autorizace musí být odvolatelná. Autentizace uživatelů je založena na infrastruktuře tajných a veřejných klíčů (PKI) s využitím X.509 certifikátů s VOMS atributy. VOMS atributy používáme rovněž k jednoznačné identifikaci uživatele, který může vlastnit několik různých c... (cs)
  • In this paper, we propose an architecture that extends Logistical Networking to use Grid authentication and authorization services. Our architecture guarantees that user is authenticated to all services included in network storage stack, the authorization granularity is also at the service level and all authorizations can be revoked at any moment by service providers. We also support access policies. These can limit maximum amount of distributed storage space allocated to a user or group of users or they can limit the maximum amount of time the client can keep his data within the distributed storage. Advanced access control to files is supported, administrators can define access conditions. The prototype implementation has been used to evaluate overhead associated with the security enhancement. This overhead is negligible for Auth, Allocate, Load, and Store commands if only capabilities are encrypted, the Copy command has a penalty of some 10ms (rather negligible for large data transfers). When ful...
  • In this paper, we propose an architecture that extends Logistical Networking to use Grid authentication and authorization services. Our architecture guarantees that user is authenticated to all services included in network storage stack, the authorization granularity is also at the service level and all authorizations can be revoked at any moment by service providers. We also support access policies. These can limit maximum amount of distributed storage space allocated to a user or group of users or they can limit the maximum amount of time the client can keep his data within the distributed storage. Advanced access control to files is supported, administrators can define access conditions. The prototype implementation has been used to evaluate overhead associated with the security enhancement. This overhead is negligible for Auth, Allocate, Load, and Store commands if only capabilities are encrypted, the Copy command has a penalty of some 10ms (rather negligible for large data transfers). When ful... (en)
Title
  • Secure Logistical Networking in Virtual Organizations
  • Bezpečné logistické sítě ve virtuálních organizacích (cs)
  • Secure Logistical Networking in Virtual Organizations (en)
skos:prefLabel
  • Secure Logistical Networking in Virtual Organizations
  • Bezpečné logistické sítě ve virtuálních organizacích (cs)
  • Secure Logistical Networking in Virtual Organizations (en)
skos:notation
  • RIV/63839172:_____/07:00000607!RIV08-MSM-63839172
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM6383917201)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 449157
http://linked.open...ai/riv/idVysledku
  • RIV/63839172:_____/07:00000607
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • IBP; PKI; X509; authentication; authentization (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...i/riv/kodPristupu
http://linked.open...ontrolniKodProRIV
  • [9C11F348453A]
http://linked.open...telVyzkumneZpravy
  • CESNET, z. s. p. o.
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Procházka, Michal
  • Matyska, Luděk
  • Hejtmánek, Lukáš
http://linked.open...rzeVyzkumneZpravy
  • CESNET Technical Report 2/2007
http://linked.open...n/vavai/riv/zamer
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