AWS Key Management Service vs Unbound Key Control [EOL] comparison

AWS Key Management Service (AWS KMS) is a managed service that makes it easy for you to create and control the encryption keys used to encrypt your data. The customer master keys that you create in AWS KMS are protected by hardware security modules (HSMs).

Unbound Key Control (UKC) ensures that your most sensitive keys never exist in the clear at any point in their lifecycle – not even when generated, while in use or while at rest. With Unbound's Distributed Trust Platform, key material is never whole – not in memory, disk or network.