Component-Based Formal Analysis of 5G-AKA: Channel Assumptions and Session Confusion

@article{Cremers2019ComponentBasedFA,
  title={Component-Based Formal Analysis of 5G-AKA: Channel Assumptions and Session Confusion},
  author={Cas J. F. Cremers and Martin Dehnel-Wild},
  journal={Proceedings 2019 Network and Distributed System Security Symposium},
  year={2019}
}
The 5G mobile telephony standards are nearing completion; upon adoption these will be used by billions across the globe. Ensuring the security of 5G communication is of the utmost importance, building trust in a critical component of everyday life and national infrastructure. We perform fine-grained formal analysis of 5G’s main authentication and key agreement protocol (AKA), and provide the first models to explicitly consider all parties defined by the protocol specification. Our analysis… 

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References

SHOWING 1-10 OF 22 REFERENCES
A Formal Analysis of 5G Authentication
TLDR
This work provides the first comprehensive formal model of a protocol from the AKA family: 5G AKA, and finds that some critical security goals are not met, except under additional assumptions missing from the standard.
A Modular Security Analysis of EAP and IEEE 802.11
TLDR
A reduction-based security analysis of the Extensible Authentication Protocol EAP is conducted, showing that the main EAP construction, considered as a 3P-AKE protocol, achieves a security notion which is called AKE$$^w$$ under the assumption that the EAP method employs channel binding.
A Comprehensive Symbolic Analysis of TLS 1.3
TLDR
The most comprehensive, faithful, and modular symbolic model of the TLS~1.3 draft 21 release candidate is constructed, and an unexpected behaviour is revealed, which is expected to inhibit strong authentication guarantees in some implementations of the protocol.
A Vulnerability in the UMTS and LTE Authentication and Key Agreement Protocols
TLDR
A flaw in the specifications of the Authentication and Key Agreement (AKA) protocols of the Universal Mobile Telecommunications System and Long-Term Evolution (LTE) as well as the specification of the GSM Subscriber Identity Authentication protocol is reported.
3G-WLAN interworking: security analysis and new authentication and key agreement based on EAP-AKA
TLDR
This paper analyzes threats and attacks in 3G-WLAN interworking and proposes a new authentication and key agreement protocol based on EAPAKA that combines Elliptic Curve Diffie-Hellman(ECDH) with symmetric key cryptosystem to overcome these vulnerabilities.
LTEInspector: A Systematic Approach for Adversarial Testing of 4G LTE
TLDR
A modelbased testing approach LTEInspector is proposed which lazily combines a symbolic model checker and a cryptographic protocol verifier in the symbolic attacker model for exposing vulnerabilities in the 4G LTE protocol.
Improved Extensible Authentication Protocol Method for 3rd Generation Authentication and Key Agreement (EAP-AKA')
This specification defines a new EAP method, EAP-AKA', a small revision of the EAP-AKA method. The change is a new key derivation function that binds the name of the access network to the keys
Mutual entity authentication for LTE
  • Geir M. Køien
  • Computer Science
    2011 7th International Wireless Communications and Mobile Computing Conference
  • 2011
TLDR
This paper proposes an amendment to the EPS-AKA protocol to make it a full mutual (online) entity authentication protocol, and analyze the proposal, highlighting both the improvements and the drawbacks of the new AKA protocol.
New privacy issues in mobile telephony: fix and verification
TLDR
This work exposes two novel threats to the user privacy in 3G telephony systems, which make it possible to trace and identify mobile telephony subscribers, and proposes fixes to these privacy issues which also take into account and solve other privacy attacks known from the literature.
The Transport Layer Security (TLS) Protocol Version 1.3
This document specifies version 1.3 of the Transport Layer Security (TLS) protocol. TLS allows client/server applications to communicate over the Internet in a way that is designed to prevent
...
...