US Patent 9515997 Inline data encryption

Organizations maintain and generate large amount of sensitive information that needs to be saved electronically and there is a need to store that data remotely with a data storage service provider. To prevent unauthorized access to the information stored by organizations on storage provided by the service provider special cryptographic devices, such as an Inline Data Encryptor, can be used to ensure that the information remains secret. The Inline Data Encryptor uses a fill device with secret cryptographic information to encrypt data.