US Patent 11934667 Encrypted-data-only media operations

Techniques for encrypted-data-only media operations are described. In some instances, data from a source to be written to memory of a storage device is received by a storage device and the storage devices determines whether the data is encrypted at a storage location based on an amount of entropy of the received data. When the received data is not encrypted a media error is returned to the source and when the received data is encrypted the data is written.