# SoK: Delegated Security in the Internet of Things
## Appendix A Methodology for Selecting Papers Suitable for the Review
### Results of the Selection Procedure
\begin{tabular}{c l c c c c} \hline \hline
**No** & **Title** & **T** & **Cn** & **h** \\ \hline
173 & Achieving a Decentralized and Secure Cab Sharing System Using Blockchain Technology [212] & 2023 & J & 19 & 182 \\
174 & Authentication Technology in IoT and Privacy Security Issues in Typical Application & 2023 & J & 4 & 62 \\
175 & Blockchain-Enabled Lightweight Fine-Grained Searchable Knowledge Sharing for Intelligent IoT [214] & 2023 & J & 1 & 149 \\
176 & Efficient Internet-of-Things Cyberattack Depletion... [215] & 2023 & J & 33 & 219 \\
177 & Enabling a Secure IoT Environment Using a Blockchain-Based Local-Global & 2023 & J & 2 & 62 \\
178 & Improving Quality of Service for Users of Leaderless DAG-Based Distributed & 2023 & J & 1 & / \\
179 & LightPoW: A trust based time-constrained PoW for blockchain in Internet of Things [218] & 2023 & J & 5 & 150 \\
180 & Optimisation of a Consensus Protocol in Blockchain-IoT Convergence [219] & 2023 & C & 0 & / \\
181 & PDPoSt+sPBFT: A High Performance Blockchain-Assisted Parallel Reinforcement & 2023 & J & 1 & 65 \\
182 & Safe and Efficient Delegated Proof of Stake Consensus Mechanism... [221] & 2023 & J & 1 & 25 \\
183 & Secure Spectrum Sharing for Satellite Internet-of-Things Based on Blockchain [222] & 2023 & J & 0 & 75 \\
184 & A novel blockchain-based digital forensics framework for preserving evidence & 2024 & J & 0 & 81 \\
185 & Blockchain-enabled trust management for secure content caching in mobile edge computing... [107] & 2024 & J & 0 & 39 \\
186 & Computing Power Networking Meets Blockchain: A Reputation-Enhanced Trading Framework... [224] & 2024 & J & 0 & 149 \\
187 & Enhancing IoT Data Security with Lightweight Blockchain and... [225] & 2024 & J & 0 & 64 \\
188 & On-Chain and Off-Chain Data Management for Blockchain-Internet of Things: A Multi-Agent... [226] & 2024 & J & 0 & 58 \\
1890 & Optimized blockchain-based healthcare framework... [227] & 2024 & J & 2 & 129 \\
190 & Resource Efficient Federated Learning and DAG Blockchain With Sharding... [228] & 2024 & J & 0 & 149 \\
191 & LT-DBFT: A Hierarchical Blockchain Consensus Using Location and Trust in IoT [229] & 2025 & C & 0 & / \\ \hline \hline \end{tabular}   
**Computations Delegation**  
192 & HIP Tiny Exchange (TEX): A distributed key exchange scheme for HIP-based Internet of Things [91] & 2012 & C & 9 & / \\
193 & A federated architecture approach for Internet of Things security [230] & 2014 & C & 83 & / \\
194 & C-CP-ABE: Cooperative Ciphertext Policy Attribute-Based Encryption for the Internet of Things [71] & 2014 & C & 46 & / \\
195 & Lightweight DTLS Implementation in CoAP-based IoT [72] & 2014 & J & 26 & 9 \\
196 & Lightweight collaborative key establishment scheme for the Internet of Things [8] & 2014 & J & 79 & 150 \\
197 & Mitigating IoT Security Threats with a Trusted Network Element [98] & 2014 & C & 19 & / \\
198 & Efficient Key Establishment for Constrained IoT Devices with Collaborative & 2015 & C & 5 & / \\
199 & Proxy-based end-to-end key establishment protocol for the Internet of Things [20] & 2015 & C & 18 & / \\
200 & S3K: Scalable Security With Symmetric Keys--DTLS Key Establishment for the Internet of Things [85] & 2016 & J & 80 & 102 \\
201 & ScriptIoT: A Script Framework for and Internet-of-Things Applications [73] & 2016 & J & 13 & 149 \\
202 & An Ontology-Based Approach for IoT Data Processing Using Semantic Rules [81] & 2017 & C & 6 & / \\
203 & CHIP: Collaborative Host Identity Protocol with Efficient Key Establishment... [90] & 2017 & J & 10 & 75 \\
204 & Fast and Parallel Keyword Search Over Public-Key Ciphertexts for Cloud-Assisted IoT [232] & 2017 & J & 11 & 204 \\ \hline \hline \end{tabular}