# Data Privacy issues Most times, people stop participating in research projects and decide not to help researchers. One of the main reasons is that they have concerns about their privacy in data. Angels might think that their anonymity is compromised if they participate. ### Solution of Data Privacy The underlying technology of Zarela’s ecosystem is Blockchain. One of the properties of the Blockchain network is that any participation will remain secured and anonymous, although Blockchain itself is unaware of the data exchange between peers because the data is encrypted using asymmetric public-key cryptography. In public key cryptosystems (like Blockchain), each peer holds a pair of public and private keys. Private key is used for signing the messages and decrypting data while the public keys are used to validate signatures and data encryption. Furthermore, any action taken using the private key can be validated using the corresponding public key of any peer. Public-key encryption operates in such a way that every peer of the network has a copy of another’s peer public key, while the peer’s private key is only known to the peer itself. The data will be encrypted at the origin peer and by the target peer’s public key and could only be decrypted by the target peer’s private key and no one else. Therefore, neither Ethereum nor Zarela, which has been built on the Ethereum blockchain, will know the transmitted data between two peers. In this way, secure Peer-to-Peer interaction between Angels and Mages would be possible. --- # Agent Instructions: 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: ``` GET https://whitepaper.zarela.io/challenges-and-solutions/data-privacy-issues.md?ask= ``` The question should be specific, self-contained, and written in natural language. 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.