Blockchain Data Scalability and Retrieval Scheme Based on On-Chain Storage Medium for Internet of Things Data

Abstract

The combination of blockchain and internet of things (IoT) technology realizes reliable storage of IoT data. However, the data stored on the blockchain (on-chain) face the problem of poor scalability and inefficient retrieval. In this paper, the on-chain data scalability schemes based on transactions and smart contracts are first proposed. Subsequently, on the basis of the above on-chain data scalability scheme based on transactions, an on-chain data index based on skip lists is proposed to improve the retrieval efficiency. The experimental results show that both the on-chain data scalability schemes achieve on-chain data scalability while reducing storage overhead. Meanwhile, the on-chain data index based on skip lists has significantly improved dynamic range retrieval efficiency and reduced the time complexity of single data retrieval to O(log(n)).

Secure transmission and storage of Internet of Things data

“…For example, if the cloud accepts and stores large amounts of data, it requires a lot of hardware storage space to support it. At the same time, the accumulation of large amounts of data can make the servers accommodate more sensitive data, thereby increasing the likelihood of leakage [5,14,15]. These are major issues that cannot be ignored in data processing.…”

“…The blockchain will contain a pointer to the address where the data is stored. When an access request is granted by the blockchain, the user will be able to find the data through the pointer [14,15].…”

“…As shown in Fig. 11, when the RS code becomes RS (15,11), in high power consumption scenarios the RS code will have little difference in error correction capability with the LCPC code. However, in low power consumption scenarios, the error correction capability of LCPC codes is better.…”

Smart Contracts for Ensuring Data Integrity in Cloud Storage with Blockchain

“…By allowing transactions to take place on distinct chains connected to the primary blockchain, sidechains help to further reduce congestion. Figure 3 compares the execution time of two scalability schemes [33].…”

“…Numerous techniques, such as code review, penetration testing, and formal verification, can be employed to evaluate the robustness of smart contracts and identify any weaknesses that could be subjugated by malicious actor [33].…”