Aggregated Frame Integrity Verification in Wireless Data Transmission
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Solution Overview
Problem
In wireless communication, data integrity verification between transmitting and receiving terminals is challenging due to exposure risks, and existing methods lack efficient mechanisms for ensuring the integrity of data frames during transmission.
Innovation Solution
A method and apparatus for generating and transmitting an aggregated frame with a frame header, a first subframe, and a second subframe, where the first subframe includes integrity verification information based on the frame header and a secure frame counter (SFC) value, and the second subframe uses a generated SFC value to ensure data integrity without including it in the frame, utilizing secure headers and nonces for encryption and verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted using wireless communication, then communication efficiency is improved, but data integrity and security deteriorate due to exposure risks
Solution Approach 1:
The data transmission is segmented into multiple subframes within an aggregated frame structure. Each subframe can be independently verified for integrity, allowing selective validation without requiring retransmission of entire data sets, thus maintaining communication efficiency while improving data integrity verification
Solution Approach 2:
Integrity verification information is generated and embedded in each subframe before transmission. This preliminary action allows the receiving terminal to verify data integrity immediately upon reception without requiring additional round-trip communication, maintaining efficiency while ensuring reliability
2Reliability
If encryption methods are used to prevent data exposure, then data security is improved, but verification complexity increases
Solution Approach 1:
The integrity verification information is extracted and embedded within each subframe structure. This allows verification to be performed independently of the encryption/decryption process, reducing verification complexity while maintaining security through the use of cryptographic hash functions
Solution Approach 2:
A secure frame counter (SFC) is introduced as an intermediary element that provides a deterministic basis for generating integrity verification information. This mediator simplifies the verification process by providing a predictable sequence that both transmitter and receiver can use to validate data without complex cryptographic operations
3Reliability
If integrity verification information is included in each subframe, then data integrity is improved, but frame size and transmission overhead increase
Solution Approach 1:
Integrity verification information is applied locally to each subframe rather than to the entire aggregated frame. This allows compact verification data to be embedded in each subframe header, providing granular integrity checking while minimizing overall overhead through efficient use of space in the subframe structure
4Reliability
If secure frame counter values are included in the frame header, then integrity verification is improved, but information exposure risk increases
Solution Approach 1:
The secure frame counter (SFC) parameter is changed from being explicitly transmitted in the frame header to being generated deterministically at the receiving terminal based on received data. This parameter transformation eliminates the need to transmit the SFC value itself, reducing information exposure risk while maintaining integrity verification capability
Data Source
AI summary
A method and apparatus for transmitting data. Data to be transmitted is an aggregated frame including a first subframe and a second subframe each including information used to verify integrity of each subframe, and an apparatus receiving the data verifies integrity of a subframe based on the information used to verify the integrity.