2.5 Security and Audit Framework
To ensure the project’s security and trustworthiness, XIIID implements a multilayered security and audit framework.
Smart Contract Security All XIIID smart contracts undergo the following rigorous security processes before deployment:
Industry-Standard Audit Process: Collaborates with professional blockchain security audit firms to thoroughly verify smart contract code for vulnerabilities.
Phased Audit Approach:
Automated vulnerability scanning
Expert manual code review
Formal verification
Penetration testing
Transparent Disclosure: All audit results are fully disclosed on the XIIID official website and GitHub repository, including identified vulnerabilities, remediation details, and follow-up verification outcomes.
Data Security and Privacy XIIID implements robust data security and privacy protection mechanisms tailored to the sensitivity of educational data:
Hybrid Data Storage Model: Sensitive learner personal and educational data is encrypted and stored off-chain, with only hashes and metadata required for access control and verification recorded on the blockchain.
Zero-Knowledge Proofs: Enables learners to prove learning achievements or qualifications without disclosing personal data.
Consent-Based Data Sharing: Learners can granularly control who accesses their educational data and for what purpose, with all access and usage logged on the blockchain.
This comprehensive security and audit framework is a cornerstone of building trust in the XIIID platform and ensuring the secure management of user data.
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