> For the complete documentation index, see [llms.txt](https://dnalayer.gitbook.io/dnachain/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dnalayer.gitbook.io/dnachain/background-technology/secure-multi-party-computation-mpc.md). # Secure Multi-Party Computation (MPC) DNA Layer employs Secure Multiparty Computation (SMPC or MPC) for provable cryptographic security across the network. SMPC is a cryptographic protocol that enables multiple parties to jointly compute a function over their inputs while keeping those inputs private. Each participant in the computation has a piece of the overall data puzzle, yet none can see the other parties’ pieces. This method ensures that intermediate information remains undisclosed to any participating party throughout the process, with only the final output being revealed to the designated recipient. On DNA Layer, this is crucial for tasks where both data privacy and collaboration are necessary. However, due to the intensive computational requirements generally associated with SMPC, we have optimized its application to be restricted to lightweight tasks throughout the network. This selective application allows us to benefit from the strong provable cryptographic security guarantees of SMPC where it matters most, without overwhelming the system with undue computational processing demands. As a result, our project not only adheres to rigorous security standards but also maintains a high level of practicality and performance efficiency when handling the strictest data confidentiality measures. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://dnalayer.gitbook.io/dnachain/background-technology/secure-multi-party-computation-mpc.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.