IBC Framework for Secure V2X Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication technologies for connected vehicles face challenges in providing efficient and secure authentication and encryption due to the complexity of symmetric key distribution and the resource-intensive nature of traditional certificate-based Public Key Cryptography (PKC) systems, particularly in the vehicle-to-everything (V2X) environment, where real-time security is critical.
Innovation Solution
The implementation of an Identity-Based Cryptography (IBC) framework that generates and distributes private keys without the need for certificates, using a Private Key Generator (PKG) to establish secure communication channels based on entity IDs, allowing for efficient and secure communication between vehicles and other entities without the complexity of Public Key Infrastructure (PKI) management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional certificate-based Public Key Cryptography (PKC) is used for secure communication, then security is improved, but device complexity and resource consumption increase
Solution Approach 1:
The patent extracts and removes the certificate management component from the traditional PKC system. By using Identity-Based Cryptography, the public key is directly derived from the entity's identity (e.g., vehicle ID) without requiring separate certificate issuance, storage, and verification processes. This eliminates the complex PKI infrastructure while maintaining security through the cryptographic relationship between identity and public key.
Solution Approach 2:
The identity string serves multiple functions simultaneously: it acts as the entity's unique identifier for communication and directly generates the public key for cryptographic operations. This multi-functionality eliminates the need for separate certificate structures, reducing system complexity while maintaining the security benefits of public key cryptography.
2Use of energy by moving object
If symmetric key cryptography is used for secure communication, then resource consumption is reduced, but key distribution security deteriorates
Solution Approach 1:
The patent introduces a Trusted Third Party (PKG - Private Key Generator) as an intermediary that securely generates and distributes private keys to entities. The PKG uses a master secret key to generate individual private keys for each entity based on their identity. This intermediary approach solves the key distribution problem by providing a centralized secure key issuance mechanism, while entities can then use lightweight symmetric key operations for actual communication.
Solution Approach 2:
Private keys are generated and distributed in advance by the PKG before communication occurs. This preliminary key establishment eliminates the need for secure real-time key exchange during communication, allowing entities to immediately use the pre-distributed keys for efficient symmetric encryption without exposing key distribution vulnerabilities.
3Reliability
If certificate-based PKC is used for authentication, then security is improved, but communication speed deteriorates due to signature verification requirements
Solution Approach 1:
The patent removes the certificate verification step from the authentication process. By using Identity-Based Cryptography, the public key is directly derived from the entity's identity string through a deterministic cryptographic function. This eliminates the need to retrieve, parse, and verify digital certificates and their signatures, significantly speeding up authentication while maintaining security through the cryptographic strength of the IBC scheme.
Solution Approach 2:
Each entity can independently generate its own public key from its identity string without requiring external verification infrastructure. The public key derivation is a self-contained cryptographic operation that does not require interaction with certificate authorities or verification of external certificate data, enabling fast autonomous authentication.
Data Source
AI summary
A vehicle communication access framework and a method are provided. The vehicle communication access framework comprises: a first device residing in a vehicle, a first processing system operated by a trusted third party, a second processing system operated by an original equipment manufacturer (OEM) of the vehicle, and a third processing system operated by a third party provider; wherein communication accesses among the first device, second processing system and third processing system are based on Identity Based Cryptography (IBC) private keys generated by the first processing system to respective first device, second processing system and third processing system.