Today, we are excited to announce the Preview of Azure Storage Service Encryption with Customer Managed Keys integrated with Azure Key Vault for Azure Blob Storage. Azure customers already benefit from Storage Service Encryption for Azure Blob and File Storage using Microsoft managed keys.
Storage Service Encryption with Customer Managed Keys uses Azure Key Vault that provides highly available and scalable secure storage for RSA cryptographic keys backed by FIPS 140-2 Level 2 validated HSMs (Hardware Security Modules). Key Vault streamlines the key management process and enables customers to fully maintain control of keys that are used to encrypt data, manage, and audit their key usage.
Read about it on the Azure blog.