Method and apparatus for secure distribution of authentication credentials to roaming users

Request an authentication is )is of private key (230) to receive an access computer server (110) filled with an electronic commerce roaming user (150) is in a method for providing a on - demand is in the access server is efficiently obtaining authentication is from a user by computer (230). Under the groove; a user in network roam freely; the no need to carry and authentication is formed (230). A with one or more of inquiries protocol response to a certificate (230), access the protocol to the simple sharing scrambled message, with one hash (210) share scrambled message or the feature method to the recognition chip. A for counterfeit to protect authentication certificate (230), capable (160) or the user machine (160) performing etching process of eliminating counterfeit the server.