Abstract: In some embodiments, an apparatus includes an authorization module implemented in at least one of a memory or a processing device. The authorization module receives at a first time and from a first mobile application, a request for an access token associated with a second mobile application that includes an identifier associated with the second mobile application and a first random verification identifier. The authorization module provides to the first mobile application a signal representing an authorization code associated with the access token. The authorization module receives from the second mobile application at a second time a signal representing the authorization code, the identifier associated with the second mobile application, and a second random verification identifier. The authorization module provides a signal representing the access token to the second mobile application based in part on the first random verification identifier being equal to the second random verification identifier.

Abstract: In some embodiments, an apparatus includes an authorization module implemented in at least one of a memory or a processing device. The authorization module can receive from an application a request for an access token associated with the application that includes a scope identifier associated with a level of access to a resource module. The authorization module can select based on the scope identifier at least one authentication mode from a set of predefined authentication modes. The authorization module can also receive at least one credential assigned to at least one authentication mode. Additionally, the authorization module can send the access token to the application in response to authenticating a user of the application based on the at least one credential.