Security Safeguards
Key Management
The secure generation, storage, rotation, and retirement of encryption keys.
Key Management is the set of practices for securely generating, distributing, storing, rotating, and retiring the cryptographic keys used to protect data.
Strong encryption is only as good as its key management: keys must be kept separate from the data they protect, access to them tightly controlled, and rotation and revocation handled cleanly. Poor key handling is a common way otherwise-encrypted ePHI becomes exposed. A worked example with AWS KMS is in Amazon RDS HIPAA compliant.