Cryptsoft KMIP Server vs OpenKCM (Open Key Chain Manager)

Cryptsoft KMIP Server is a C and Java SDK for developers adding key-management server capability to their own products. The SDK supports KMIP versions 1.0 through 2.1, with KMIP 3.0 support also listed, and Cryptsoft describes it as OASIS KMIP compliant. The company says its SDKs connect with HSMs, key-management servers, cloud services, storage and embedded devices, and support HSM integration and policy control. Keyward is a rebrandable web console for the server; it offers two layouts, theming, passkey sign-in and nine languages, and communicates over native KMIP or REST. Cryptsoft says KMIP 3.0 supports ML-KEM, ML-DSA and SLH-DSA through OpenSSL 3.5+ for C or Bouncy Castle 1.81+ for Java. The server can also deliver quantum key distribution material through KMIP as an ETSI-compliant key management entity. Linux and Windows are listed, with custom platform ports available on request. The product is intended for OEM integration; pricing and licensing details require contacting Cryptsoft.

OpenKCM (Open Key Chain Manager) is a free, open-source key management service for governing encryption keys and protecting data at rest. It supports BYOK key import and HYOK, which keeps master keys in a customer’s infrastructure. Its recursive L1–L4 hierarchy makes data keys dependent on higher-level keys. Governance and policy control are handled by CMK, while Krypton performs cryptographic execution; applications request key operations through the KMIP API.

The Gateway is designed to run near applications, such as in Kubernetes or a cloud VPC, and the same software can operate across AWS, Azure and on-premise environments. Customer root keys can remain in AWS, Azure or GCP key services, or on-premise HSMs, while OpenKCM holds a reference to the L1 key. A kill switch can halt downstream key use by removing that reference or revoking the root key. CMK connects to a corporate identity provider and sends audit logs to SIEM systems. The project’s CMK and Krypton components are actively being developed; encryption and decryption operations are in progress, while audit export, high availability and disaster recovery are planned for 2027.