![]() |
![]() |
University of Birmingham > Talks@bham > Computer Security Seminars > TRAKS: A Universal Key Management Scheme for ERTMS
TRAKS: A Universal Key Management Scheme for ERTMSAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Dr Garfield Benjamin. NB change of location: Room 245 This paper presents a new Key Management and Distribution Scheme for use in the European Rail Traffic Management System (ERTMS). Its aim is to simplify key management and improve cross-border operations through hierarchical partitioning. The current scheme used in ERTMS involves the creation and distribution of 3DES keys to train and trackside entities, which are then used as part of the EuroRadio Protocol to provide message authentication. This results in the distribution of tens of thousands of keys using portable media, a prohibitively high burden on management and resourcing. We present a symmetric key solution, TRAKS , which has the benefit of being backwards compatible with the current ERTMS standard and being post-quantum secure. This new scheme reduces the number of cryptographic keys in circulation, and maintains the current security model. We achieve this by dynamically deriving unique keys from a shared secret, i.e. the line secret, which is combined with IDs of trains, and of signalling equipment. In addition to providing better key management, our scheme also adds authentication to the location data provided by EuroBalises This talk is part of the Computer Security Seminars series. This talk is included in these lists:
Note that ex-directory lists are not shown. |
Other listsBiosciences seminars Data Science and Computational Statistics Seminar CargoOther talksTitle tbc Unlocking the secrets of locking Is the FEM error smaller away from the scatterer than near it for high-frequency Helmholtz problems with trapping? Harness light-matter interaction in low-dimensional materials and nanostructures: from advanced light manipulation to smart photonic devices The Electron-Ion Collider The Holographic Universe |