Bring Your Own Key (BYOK), also referred to as Customer Supplied Encryption Keys (CSEK), is a model of encryption key management that enables customers to take full control of their encryption keys when storing data in the cloud.
The Key Management Interoperability Protocol (KMIP) is a universal language for secure data management across platforms. It was developed by the Organization for Advancement of Structured Information Standards (OASIS), with the purpose of enabling communication between key management systems and cryptographically-enabled applications.