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上海_04_Secure+In-Vehicle+Communication+with+SecOC+and+TLS.pdf
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上海_04_Secure+In-Vehicle+Communication+with+SecOC+and+TLS
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V0.1 | 2023-07-03
Fundamentals and Testing Tools
Secure In-Vehicle Communication with SecOC and TLS
2
Increasing Connectivity
Motivation
4G
LTE
OBD
Car2X
Public
Clouds
Service
Provider
ITS
Operator
Suppliers
OEM
3
Security Goals:
Replay protection: Freshness Mechanism prevents replay of valid pairs of data and authentication
New challenges:
Security protects Features and Business Models
Motivation
Integrity
Checking to ensure that
information contents are
complete and
unmodified.
Authenticity
Trustworthy data
exchange between
senders and receivers
Confidentiality
Data is encrypted and
can only be read by
authorized nodes.
Simulation and testing of secured
ECUs and Networks
Testing of security mechanism
4
Secure Communication Protocols in Automotive Networks
Challenges
SecOC
Protects integrity on PDU level.
Symmetric key used for
transmission and reception.
(D)TLS
Protects integrity and confidentiality
on TCP/UDP layer.
Certificate-based or with pre-shared keys.
IPsec
Protects integrity and confidentiality on IP layer.
Certificate-based or with pre-shared keys.
MACsec
Protects integrity and confidentiality on Ethernet
layer.
Certificate-based or with pre-shared keys.
Hop-by-hop instead of end-to-end.
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