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itemprop="itemListElement" itemtype="https://schema.org/ListItem" class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link" itemprop="name">Encryption in Jackal Protocol</span><meta itemprop="position" content="2"></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><h1>Encryption in Jackal Protocol</h1><p>The Jackal Protocol utilizes encryption techniques to ensure the privacy and security of user data. The two primary
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encryption models within the protocol are file encryption and file-entry encryption. File encryption secures the files
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themselves, while file-entry encryption focuses on securing the file entries on the blockchain.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="file-encryption">File Encryption<a href="#file-encryption" class="hash-link" aria-label="Direct link to File Encryption" title="Direct link to File Encryption"></a></h2><p>File encryption is essential for protecting the data stored on storage providers within the Jackal Protocol. Before
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transferring files to storage providers, the user's client encrypts the files using a randomly generated symmetric key.
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The Advanced Encryption Standard (AES-256) is used for this encryption process, resulting in a securely encrypted file.</p><p><img loading="lazy" alt="File Encryption Process" src="/assets/images/enc1-a5bf8bd57de61c12dd33f5f71acf6d2b.png" width="482" height="302" class="img_ev3q"></p><p>The symmetric key's secure storage is equally crucial, as exposing it would compromise the file's encryption. The Jackal
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Chain's File Tree Module serves as a safe and immutable location for storing the encrypted symmetric key alongside the
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file's location.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="integrated-encryption-scheme">Integrated Encryption Scheme<a href="#integrated-encryption-scheme" class="hash-link" aria-label="Direct link to Integrated Encryption Scheme" title="Direct link to Integrated Encryption Scheme"></a></h2><p>The protocol uses an Integrated Encryption Scheme based on AES and the Elliptic Curve cryptography, which generates
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Bech32 addresses for secure key storage.</p><p><img loading="lazy" alt="Integrated Encryption Scheme" src="/assets/images/enc2-301650ee7a3ebf09db7d546400ff51e1.png" width="467" height="242" class="img_ev3q"></p><p>To securely store the symmetric key, the protocol encrypts it with the user's public key. This process ensures that only
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the user with the corresponding private key can decrypt the symmetric key.</p><p><img loading="lazy" alt="Symmetric Key Decryption" src="/assets/images/enc3-cd67943d1c117087b30355af9d5994eb.png" width="762" height="322" class="img_ev3q"></p><p>When decrypting a file, the user's private key is used to decrypt the symmetric key. Once the symmetric key is
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retrieved, it can be used to decrypt the file stored on the storage provider, resulting in the original uploaded file.</p><h2 class="anchor anchorWithStickyNavbar_LWe7" id="file-sharing-and-access">File Sharing and Access<a href="#file-sharing-and-access" class="hash-link" aria-label="Direct link to File Sharing and Access" title="Direct link to File Sharing and Access"></a></h2><p>To share files with other users, the protocol first decrypts the symmetric key from the chain, then retrieves the
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external user's public key from the chain, and encrypts the symmetric key with the external user's public key. By
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appending the newly encrypted symmetric key to the file entry, the external user gains access to the file.</p><p>By leveraging encryption techniques for both files and file entries, the Jackal Protocol ensures the privacy, security,
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and integrity of user data throughout the storage and sharing processes.</p></div><footer class="theme-doc-footer docusaurus-mt-lg"><div class="theme-doc-footer-edit-meta-row row"><div class="col"><a href="https://github.com/JackalLabs/canine-docs/blob/master/docs/protocol/encryption.md" target="_blank" rel="noreferrer noopener" class="theme-edit-this-page"><svg fill="currentColor" height="20" width="20" viewBox="0 0 40 40" class="iconEdit_Z9Sw" aria-hidden="true"><g><path d="m34.5 11.7l-3 3.1-6.3-6.3 3.1-3q0.5-0.5 1.2-0.5t1.1 0.5l3.9 3.9q0.5 0.4 0.5 1.1t-0.5 1.2z m-29.5 17.1l18.4-18.5 6.3 6.3-18.4 18.4h-6.3v-6.2z"></path></g></svg>Edit this page</a></div><div class="col lastUpdated_vwxv"></div></div></footer></article><nav class="pagination-nav docusaurus-mt-lg" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/docs/protocol/tokens"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">JKL Token</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/docs/protocol/validators"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Validators</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#file-encryption" class="table-of-contents__link toc-highlight">File Encryption</a></li><li><a href="#integrated-encryption-scheme" class="table-of-contents__link toc-highlight">Integrated Encryption Scheme</a></li><li><a href="#file-sharing-and-access" class="table-of-contents__link toc-highlight">File Sharing and Access</a></li></ul></div></div></div></div></main></div></div><footer class="footer"><div class="container container-fluid"><div class="row footer__links"><div class="col footer__col"><div class="footer__title">Jackal</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://jackalprotocol.com" target="_blank" rel="noopener noreferrer" class="footer__link-item">Website<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li></ul></div><div class="col footer__col"><div class="footer__title">Connect With Us</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://discord.com/invite/5GKym3p6rj" target="_blank" rel="noopener noreferrer" class="footer__link-item">Discord<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li><li class="footer__item"><a href="https://twitter.com/Jackal_Protocol" target="_blank" rel="noopener noreferrer" class="footer__link-item">Twitter<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li></ul></div><div class="col footer__col"><div class="footer__title">Developers</div><ul class="footer__items clean-list"><li class="footer__item"><a href="https://docs.jackalprotocol.com" target="_blank" rel="noopener noreferrer" class="footer__link-item">Documentation</a></li><li class="footer__item"><a href="https://github.com/jackallabs/canine-docs" target="_blank" rel="noopener noreferrer" class="footer__link-item">Contribute to Docs<svg width="13.5" height="13.5" aria-hidden="true" viewBox="0 0 24 24" class="iconExternalLink_nPIU"><path fill="currentColor" d="M21 13v10h-21v-19h12v2h-10v15h17v-8h2zm3-12h-10.988l4.035 4-6.977 7.07 2.828 2.828 6.977-7.07 4.125 4.172v-11z"></path></svg></a></li></ul></div></div><div class="footer__bottom text--center"><div class="footer__copyright">Copyright © 2023 Jackal Labs</div></div></div></footer></div>
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