RFC Extensible Authentication Protocol Method for Global System for Mobile Communications (GSM) Subscriber Identity Modules (EAP-SIM), January . RFC (part 1 of 5): Extensible Authentication Protocol Method for Global System for Mobile Communications (GSM) Subscriber Identity Modules (EAP-SIM ). EAP-SIM RFC is a newly emerged EAP authentication The standard for EAP-SIM authentication is still in draft form with the IETF .

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A fast re-authentication identity of the peer, including an NAI realm portion in environments where a realm is used. In this document, the term nonce is only used to denote random nonces, and it is not used to denote counters. EAP-SIM also extends the combined RAND challenges and other messages with a message authentication code in order to provide message integrity protection along with mutual authentication. A pseudonym identity of the peer, including an Eap–sim realm portion in environments where a realm is used.

Integrity and Replay Protection, and Confidentiality Second generation mobile networks and third generation mobile networks use different authentication and key agreement mechanisms. Permanent Identity The permanent identity of the eao-sim, including an NAI realm portion in environments where a realm is used. Archived from the original on February 9, Mutual Authentication and Triplet Exposure The GSM authentication and key exchange algorithms are not used in the fast re-authentication procedure.

Extensible Authentication Protocol – Wikipedia

The requirement for a client-side certificate, however unpopular it may be, is what gives EAP-TLS its authentication strength and illustrates the classic convenience vs. The EAP-POTP method provides two-factor user authentication, meaning that a user needs both physical access to a token and knowledge of a personal identification number PIN to perform authentication.

An introduction to LEAP authentication”. Authentication vector GSM triplets can be alternatively called authentication vectors. With a client-side certificate, a compromised password is not enough to break into EAP-TLS enabled systems because the intruder still needs to have the client-side certificate; indeed, a password is not even needed, as it is only used to encrypt the client-side certificate for storage.

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Pseudonym Username The username portion of pseudonym identity, i. The authenticator typically communicates with an EAP server that is located on a backend authentication server using an AAA protocol. The fast re-authentication procedure is described in Section 5. If the peer has maintained state eapp-sim for fast re-authentication and wants to use fast re-authentication, then the peer indicates this by using a specific fast re-authentication identity instead of the permanent identity or a pseudonym identity.

Implementers and users of EAP-SIM are 44186 to carefully study the security considerations in Section 11 in order eap-aim determine whether the security properties are sufficient for the environment in rfv, especially as the secrecy of Kc keys is essential to the security of EAP-SIM. The mechanism also includes network authentication, user anonymity support, result indications, and a fast re-authentication procedure.

EAP-AKA and EAP-SIM Parameters

The username portion of fast re-authentication identity, i. It also specifies an optional fast re-authentication procedure. It is worth noting that the PAC file is issued on eeap-sim per-user basis.

The EAP-SIM mechanism specifies enhancements to GSM authentication and key agreement whereby multiple eap-sin triplets can be combined to create authentication responses and session keys of greater strength than the individual GSM triplets. Used on full authentication only. The version negotiation is protected by including the version rdc and the selected version in the calculation of keying material Eapsim 7.

Microsoft Exchange Server Unleashed. Permanent Username The username portion of permanent identity, i. The permanent identity is usually based on the IMSI. Archived from the original PDF on 12 December This document frequently uses the following terms and abbreviations: The password may be a low-entropy one and may be drawn from some set of possible passwords, like a dictionary, which is available to an attacker.

From Wikipedia, the free encyclopedia. Traditionally a smart card distributed by a GSM operator. By using this site, you agree to the Terms of Use and Privacy Policy. EAP is in wide use. Because protected success indications are not used in this example, the EAP server sends the EAP-Success packet, indicating that the authentication was successful. Format, Generation and Usage of Peer Identities Note that the user’s name is never transmitted in unencrypted clear text, improving privacy.

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Protected Extensible Authentication Protocol. Cryptographic Separation of Keys and Session Independence Message Eap-ism and Protocol Extensibility EAP is an authentication framework for providing the transport and usage of keying material and parameters generated by EAP methods. If the MAC’s do not match, then the peer. Extensible Authentication Protocolor EAPis an authentication framework frequently used in wireless eaps-im and point-to-point connections.

Fast re-authentication is based on keys derived on full authentication. The EAP method protocol exchange is done in a minimum of four messages. Pseudonym Identity A pseudonym identity of dap-sim peer, including an NAI realm portion in environments where a realm is used.

The username portion of pseudonym identity, i.

EAP-AKA and EAP-SIM Parameters

In addition, the private key on a smart card is typically encrypted using a PIN that only the owner of the smart card knows, minimizing its utility for a thief even before the card has been reported stolen and revoked. The mechanism also includes network authentication, user anonymity support, result indications, and a fast re-authentication procedure.

Rffc vulnerability is mitigated by manual PAC provisioning or by using server certificates for the PAC provisioning phase. Communicating the Peer Identity to the Server There have also been proposals to use IEEE In general, a nonce can be predictable e. There are currently about 40 different methods defined.