Cloud Computing and Security Challenges - An Overview

Cloud Computing – An overview
Meera G

Agenda
What is cloud computing?
    Definition Essential characteristics Service models Deployment models

Challenges  orensics in cloud computing

Cloud Computing ! Definition
"he #$S" definition of cloud computing%

&Cloud computing is a model for ena'ling u'i(uitous) convenient) on!demand networ* access to a shared pool of configura'le computing resources +e,g,) networ*s) servers) storage) applications) and servicesthat can 'e rapidly provisioned and released with minimal management effort or service provider interaction,.

Essential Characteristics
/n!demand self service 0esource pooling 1road networ* access 0apid elasticity Measura'le service

Service Models
 Software as a Service +SaaS-

 2latform as a Service +2aaS $nfrastructure as a Service +$aaS-

Deployment models
 2rivate cloud  Community cloud  2u'lic cloud  3y'rid Cloud

"he #$S" Cloud Definition ramewor*
3y'rid Clouds Deployment Models Service Models Essential Characteristics Private Cloud Software as a Service +SaaSCommunity Cloud 2latform as a Service +2aaS/n Demand Self!Service 1road #etwor* Access 0esource 2ooling Massive Scale Common Characteristics 3omogeneity 5irtuali6ation 4ow Cost Software 0apid Elasticity Measured Service 0esilient Computing Geographic Distri'ution Service /rientation Advanced Security Public Cloud $nfrastructure as a Service +$aaS-

Cloud – pros and cons
 Agility – /n demand computing infrastructure  Multi!tenancy – Several customers share infrastructure) without compromising privacy and security of each of the customer7s data  Service!oriented – compose applications out of loosely coupled services, /ne service failure will not disrupt other services, E8pose these services as A2$7s  5irtuali6ed – decoupled from underlying hardware, Multiple applications can run in one computer

Challenges
Governance  Security and 2rivacy  S4A guarantees  Compliance and auditing

 0elia'ility
 Good service provider with 99,999: availa'ility Cloud independence – 5endor loc*!in  Cloud provider goes out of 'usiness  4ac* of standardi6ation to ensure porta'ility

orensics in cloud computing