Patent ID: 9253217
Filing Date: 2016-02-02
CPC Classification: G06F,H04L

Claim Text:
1. A method for authenticating a user, comprising: a first server of a plurality of servers receiving, by a computer processor, input authentication information from the user; and said first server ascertaining, by the processor, that the user is authorized to access a federated computing environment that comprises the plurality of servers, wherein said ascertaining comprises determining that the received input authentication information conforms to at least one rule of an authentication policy of a second server having a highest relative priority among servers of the plurality of servers whose authentication policy's at least one rule, in an authentication policy table within the first server, is conformed to by the received input authentication information, wherein the authentication policy table within the first server comprises (i) an authentication policy of each server of the plurality of servers and (ii) a relative priority of each server in order of decreasing number of users registered in an authentication system of each server, wherein the authentication policy of each server is at least one rule of each server for authenticating users of the federated computing environment.