Files

The storage of and access to files through censorship-resistant and confidential technologies is essential to many applications.

Core Features:

This SDK harnesses cutting-edge technologies to deliver:

• Censorship Resistance: Utilizing the InterPlanetary File System (IPFS), a peer-to-peer file storage protocol, NotVault ensures your file's data is resistance to censorship.

• Confidentiality: By implementing a Single Key Encryption methodology rooted in the Advanced Encryption Standard (AES) algorithm, NotVault guarantees the confidentiality of your files. This method creates a unique secret for each file, which is then used to encrypt the file, enabling efficient and confidential file distribution.

• Private File List: NotVault empowers each user with a private list of their files uploaded to IPFS. This list serves as a reference and includes:

  • File Name

  • Upload Date

  • Secret Encryption Key

Workflow

Using NotVault, you can create workflows with the following steps:

• Upload: When a file is selected for upload, the following process is initiated:

  1. NotVault generates a UUID-based random key.

  2. This key is used to encrypt the file via the AES algorithm.

  3. The encrypted file is then sent to IPFS.

  4. Keep in mind, the file departs from the NotVault runtime only after encryption.

• Listing: Users can access their private file list, returning a list of names, upload dates, and secret encryption keys.

• Retrieval: Users can fetch a file from IPFS and decrypt it within the NotVault runtime using the corresponding secret key. This design ensures the reduction of potential content leaks.

• Deletion: Users can remove a file from their private list and unpin it from IPFS.

Important: Full confidentiality can only be attained by refraining from sharing the data itself, but rather by sharing cryptographic derivates of the confidential data. When a dataset is accessible to more than one person, managing the data's footprint becomes a challenge.