46 lines
2.3 KiB
Markdown
46 lines
2.3 KiB
Markdown
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sidebar_position: 2
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---
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# Encryption in Jackal Protocol
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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.
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## File Encryption
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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.
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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.
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## Integrated Encryption Scheme
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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.
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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.
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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.
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## File Sharing and Access
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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.
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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.
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