Category:
Technical
Oasis Privacy Layer (OPL) offers a mechanism where the encryption key for an IPFS-stored file can be securely stored on the Sapphire chain. Other chains can use OPL to authorize access to this encryption key, ensuring that only authorized users can retrieve the key. Once authorized, the user can obtain the encryption key, retrieve the file from IPFS (or access the hidden URL containing both the URL and encryption key), and then decrypt the file. This process ensures data privacy and controlled access, making it suitable for various confidential data use cases.