SeongHan Shin

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In this paper, we prove the security of the RSA-AKE protocol [9] in the random oracle model. The proof states that the RSA-AKE protocol is secure against an adversary who gets the client's stored secret or the server's RSA private key. To our best knowledge, the RSA-AKE protocol is the most efficient among their kinds (i.e., RSA and password based AKE(More)
Remote user authentication and key agreement system through smartcard is a viable practical solution to validate the eligibility of a remote user and thus to provide a secure communication. This paper suggests a Secure Authenticated Key Exchange Protocol (SAKEP) for Credential Services. The major intrinsic worth of this scheme include that, the system do(More)
Authenticated Key Establishment (AKE) protocols enable two entities, say a client (or a user) and a server, to share common session keys in an authentic way. In this paper, we review AKE protocols from a little bit different point of view, i.e. the relationship between information a client needs to possess (for authentication) and immunity to the respective(More)
SUMMARY Authenticated Key Establishment (AKE) protocols enable two entities, say a client (or a user) and a server, to share common session keys in an authentic way. In this paper, we review the previous AKE protocols, all of which turn out to be insecure, under the following realistic assumptions: (1) High-entropy secrets that should be stored on devices(More)
In this paper, we investigate the notion of partnership as found in security models for key exchange protocols. Several different approaches have been pursued to define partnership, with varying degrees of success. We aim to provide an overview and criticism of the various definitions and point out some pitfalls that can be encountered when trying to define(More)