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 . but are not limited to, RFCs, the products of another standards body (e.g. 3GPP ), EAP-AKA’ AT_KDF Key Derivation Function values; Trusted Non-3GPP 12, AKA-Notification and SIM-Notification, [RFC][RFC].
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Archived from the original PDF on 12 December The IETF has also not reviewed the security of the cryptographic algorithms. See our FAQ for additional information. Rcf the server is securely authenticated to the client via its CA certificate and optionally the client to the server, the server can then use the established secure connection “tunnel” to authenticate the client.
RFC – part 1 of 5
Note that the user’s name is never transmitted in unencrypted clear text, improving privacy. The EAP server may also include derived keying material in the message it sends to the authenticator. BlunkJohn R. Message Format and Protocol Extensibility Used on full authentication only. EAP-TLS is still considered one of the most secure EAP standards available, although TLS provides strong security only as long as the user understands potential warnings about false credentials, and is universally supported by all manufacturers of wireless LAN hardware and software.
Fall Back to Full Authentication This is a requirement in RFC sec 7. It does not specify an Internet standard of any kind.
This greatly simplifies the setup procedure since a certificate is not needed on every client. Permanent Identity The permanent identity of the peer, including an NAI realm portion in environments where a realm is used. The password may dap a low-entropy one and may be drawn from some set of possible passwords, like a dictionary, which is available to an attacker. Second generation mobile networks and third generation mobile networks use different authentication and key agreement mechanisms.
EAP-AKA and EAP-SIM Parameters
Targeting the weaknesses in static WEP”. A3 and A8 Algorithms In this document, the term nonce is only used to denote random nonces, and it is not used to denote counters. PEAPv1 was defined in draft-josefsson-pppext-eap-tls-eap through draft-josefsson-pppext-eap-tls-eap and PEAPv2 was defined in versions beginning with draft-josefsson-pppext-eap-tls-eap If the peer has maintained state information 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.
Since some cryptographic properties may depend on the randomness of the nonce, attention should be paid to whether a nonce is required to be random or not. In-band provisioning—provide the peer with a shared secret to be used in secure phase 1 conversation. Citation Statistics Citations 0 10 20 ’06 ’09 ’12 ’15 ‘ The lack of mutual authentication is a weakness in GSM authentication.
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. 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.
Protected success indications are discussed in Section 6.
Hence, the secrecy of Kc is critical to the security of this protocol. The GSM network element that provides the authentication triplets for authenticating the subscriber. The authenticator typically communicates with an EAP server that is located on a backend authentication server using an AAA protocol. 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.
The protocol only specifies chaining multiple EAP mechanisms and not any specific method. This phase is independent of other phases; hence, any other scheme in-band or out-of-band can be used in the future.
It does not specify an Internet standard of any kind. Topics Discussed in This Paper.