> For the complete documentation index, see [llms.txt](https://docs.decentrally.cloud/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.decentrally.cloud/datadrop-intro/how-does-datadrop-work.md).

# How does DataDrop work

### Graphical Data flow

<figure><img src="/files/aZvVGadmKSQDoxSP1cOZ" alt=""><figcaption><p>DataDrop - Data flow</p></figcaption></figure>

### Data flow

1. **Upload:** The process begins with the upload of a file to the system.
2. **In-transit Encryption:** As the file is being uploaded, it is encrypted to protect its contents while it is being transmitted over the network.
3. **Encryption:** Once the file reaches its destination, it undergoes another layer of encryption for additional security while at rest. Also read [Data security](/datadrop-intro/datadrop-data-security.md)
4. **Data Chunking:** The encrypted file is then divided into smaller chunks, which makes it easier to manage, store, and retrieve. Also read [Data security](/datadrop-intro/datadrop-data-security.md)
5. **Host & Store:** These chunks are then hosted and stored across the decentralized network of storage nodes provided by Filecoin.
6. **Data Lookup:** When the file is requested for download, the system performs a lookup to find all the chunks that constitute the original file.
7. **Reassembly:** The system reassembles the chunks back into the original file format.
8. **Decryption:** Before the file is provided to the downloader, it is decrypted to make it accessible.
9. **In-transit Encryption:** As the file is being transmitted back to the requester, it is encrypted again to ensure security during transit.
10. **Download:** Finally, the file is downloaded by the requester, at which point it can be decrypted and accessed.

This process as part of the DataDrop platform highlights how it integrates with Filecoin’s decentralized network to provide enhanced security, cost efficiency, and reliable data availability for cloud storage.


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