cisco certification support number

cisco certification support number.2. OAuthOAuth is a framework that provides authorization for third-party entities (e.g., smartphone applications) to access resources hosted on a resource server. For a traditional client . server authorization framework, the third-party entity receives a "credential" from the resource owner (the user) before it can access the resource on the resource server.The main problem that OAuth solves is the ability to provide third parties with authorization to access restricted resources without passing the client "credential" to the third party entity. Instead of obtaining a user's "pass", the entity requesting access receives an authorizationtoken, which not only contains authorization information (e.g., scope of access, duration of access, etc.), but can also be used to request access to resources hosted on the resource server. The OAuth model is often referred to as delegation ofaccess.OAuth2 as defined in RFC 6749 includes the following 4 main roles. Resource owner: A party (e.g., a user) that owns a resource and will grant access to certain of its own resources. Client: the party that needs access to a particular resource. Resource server: the party that hosts or stores the resource. Authorization server: the party that provides the authorization token. In the basic OAuth2 scenario, authorization is done through 6 messages. 1. The client sends an authorization request to the resource owner (or indirectly to the authorization server).2. the resource owner (or on behalf of the resource owner, the authorization server) sends an authorization approval to the client (authorization3. The client sends the authorization approval to the authorization server as proof that the authorization has been granted. 4. The authorization server authenticates the client and issues an access token. 5. The client sends the access token to the resource server as evidence that it has been authenticated and authorized to access the resource. 6. The resource server verifies the access token and grants access. As an example, a user (resource owner) uploads his personal photo album to the server of an online storage providerand grants access to an application (client) installed on his mobile phone. In order for others to view the album, instead of providing a "pass" directly to the application, they must be authenticated directly by the authorization server (in this case, the online storage provider) in order to gain access to the album.Figure 5-11 shows an example of an OAuth message exchange. 3.OpenlD ConnectOpenlD has long been a very popular SSO protocol for federated systems, and its version 2.0 authentication and authorization process is similar to the SAML authentication and authorization process. OpenlD also defines IdP (named OpenlD Provider [OpenlD Provider, OP]) and Relying Party (RP) (the entity that holds the resources that the user wants to access). In OpenlD, the user is free to choose the OP of his or her choice, whose initial identity is provided in the form of a URL.