Identity and access management- a comprehensive study

With advent of cloud computing and web 2.0, both users and organizations have benefitted. But security still remains a major concern. Identity and access management provides a solution to manage user credentials, authenticate and authorize users. Concept of federated identity based on trust relationship among various identity providers and service providers has made it possible for user to access multiple services without the need of providing passwords to various service providers. Single Sign On has solved the problem of maintaining multiple passwords for different services. In this paper we have briefly discussed what is Identity and access management, its services and popular standards like SAML2.0, OAuth, OpenID.