Overview
ISO 24534-5:2011/Amd 1:2019 is an international standard developed by ISO Technical Committee ISO/TC 204, focusing on intelligent transport systems (ITS). This amendment updates Part 5 of the Electronic Registration Identification (ERI) for vehicles, specifically addressing secure communications using symmetrical cryptographic techniques. The standard enhances the security framework for automatic vehicle and equipment identification systems, ensuring confidentiality, integrity, and authenticity in data exchanges.
This amendment refines key definitions and structures for cryptographic transactions and updates ASN.1 modules essential for symmetrical key management and secure communication protocols within the ERI context. The standard enables interoperable, reliable, and secure ERI communications, crucial for modern ITS applications.
Key Topics
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Secure Communications
The amendment emphasizes symmetrical cryptographic techniques for securing vehicle registration identification data. These techniques support mutual authentication, secret key management, and session controls.
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Symmetrical Key Transactions
Core transactions include:
- Mutual authentication phases (
mutualAuthentication1, mutualAuthentication2)
- Secret key data retrieval and setting (
getSecretKeyEriData, setSecretKeyEriData)
- Commissioning and decommissioning secret keys (
commissionSecretKeyErt, decommissionSecretKeyErt)
- Access Control List management (
updateAccessControlList, getCipertextAccessControlListEntry)
- Session termination (
endOfSession)
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ASN.1 Module Specifications
The amendment includes normative ASN.1 modules (EriSecretKeyTransactionsModule) defining data structures and communication protocols for ERI secure communication, along with informative modules that provide example data types and transaction formatting.
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Data Encoding Refinements
Adjustments are made regarding encoding rules, replacing “(CANONICAL-PER) ALIGNED” with “(CANONICAL-PER) UNALIGNED” for better alignment with ASN.1 standards and interoperability.
Applications
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Intelligent Transport Systems (ITS)
ISO 24534-5:2011/Amd 1:2019 supports secure automatic vehicle and equipment identification critical in tolling, traffic monitoring, and law enforcement systems.
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Vehicle Registration and Compliance
Provides a robust security foundation for electronic vehicle registration systems, ensuring data privacy and protection against unauthorized access or tampering.
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Access Control Systems
Facilitates management of secret cryptographic keys and access control lists, enabling controlled and secure communications between vehicles and roadside equipment.
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Mutual Authentication Procedures
Ensures trust between communicating entities through standardized symmetrical key authentication processes, enhancing system reliability and resistance to spoofing attacks.
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Interoperable Communication Protocols
The ASN.1 specifications enable manufacturers and system integrators to implement interoperable solutions conforming to internationally recognized security mechanisms.
Related Standards
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ISO 24534-1 to 4
Other parts of ISO 24534 cover different aspects of Electronic Registration Identification, including system architecture, data formats, and communication protocols for ERI.
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ISO 15628
Offers foundational data structures and profiles used in DSRC (Dedicated Short-Range Communications) data exchange, referenced within ASN.1 modules for ERI communication.
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ISO/IEC 8825 and ISO/IEC 8824
Underlying standards for ASN.1 encoding rules, key to defining and encoding the data structures described in ISO 24534-5.
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ISO/IEC 9798
Covers entity authentication mechanisms, complementary to the symmetric cryptographic methods referenced in this amendment.
Keywords: intelligent transport systems, automatic vehicle identification, electronic registration identification, ERI, secure communications, symmetrical cryptography, ISO 24534-5, ASN.1 module, mutual authentication, secret key management, access control list, ITS security standards.
Open preview (PDF)Intelligent transport systems — Automatic vehicle and equipment identification — Electronic Registration Identification (ERI) for vehicles — Part 5: Secure communications using symmetrical techniques — Amendment 1