US Patent 11316685 Systems and methods for encrypted content management

Systems and methods for encrypted content management are provided and include generating an asymmetric key pair for a user, including a user private key and a user public key. A symmetric encryption key is generated based on unique information known to the user. The user private key is encrypted using the symmetric encryption key to generate a user escrow key. Plaintext data is encrypted into ciphertext data using a content symmetric key and stored in a data storage unit. An ephemeral pair of keys is generated and includes an ephemeral public key and an ephemeral private key. A shared-secret key is generated based on the ephemeral private key and the user public key using a diffie-hellman exchange algorithm and the content symmetric key is encrypted using the shared-secret key. The encrypted content symmetric key and the ephemeral public key are stored in an encrypted content management storage unit.