Multi-Cloud KMS

This paper addresses the common challenges, strategies, solutions, and best practices for maintaining and using keys securely to facilitate these critical cryptographic functions between disparate CSPs, applications, and environments.
It outlines critical challenges, compares key management models, including BYOK, HYOK, and third-party KMS solutions, and offers actionable guidance for selecting secure, compliant, and operationally feasible strategies. Designed for cloud security leaders and governance teams, the recommendations support technical, regulatory, and business alignment across heterogeneous cloud architectures.