Storj (pronounced: storage) aims to become a cloud storage platform that can’t be censored or monitored, or have downtime. It is the first decentralized, end-to-end encrypted cloud storage that uses blockchain technology and cryptography to secure your files.
Storj is a platform, cryptocurrency, and suite of decentralized applications that allows you to store data in a secure and decentralized manner. Your files are encrypted, shredded into little pieces called 'shards', and stored in a decentralized network of computers around the globe. No one but you has a complete copy of your file, not even in an ecrypted form.
Because of this, Storj can be faster, cheaper, and more secure than traditional cloud storage platforms. Faster because multiple machines are serving you your file simultaneously, cheaper because you are renting people's spare hard-drive space instead of paying for a purpose-built data center, and more secure because your file is both encrypted and shredded. There is no need to trust a corporation, vulnerable servers, or employees with your files. Storj completely removes trust from the equation.
Storj uses blockchain features like a transaction ledger, public/private key encryption, and cryptographic hash functions for security.
Storj is working hard to solve data security issues with the help of its own web app, Storj, which lets you store your files, and client app, Storj Share, which lets you rent your hard-drive space for money.
To best protect your data, files are encrypted client-side on your computer before they are uploaded. Each file is split up into chunks which are first encrypted and then distributed for storage across the Storj network. The network is comprised of Storj Share nodes run by users around the world who rent out their unused hard drive space in return for Storj Token (STORJ).
The decentralized aspect of Storj means there are no central servers to be compromised, and with client-side encryption, your are in control of the keys to your files.