SAP Data Custodian Key Management Service vs Utimaco Enterprise Secure Key Manager

SAP Data Custodian Key Management Service is a cloud service accessed through the web for managing cryptographic keys. It supports three listed key types: AES, RSA, and ECC. Automated key rotation changes keys according to the service’s rotation capability, while key audit logs provide records of key-related activity. The service supports external key control and also lists a combined external-and-other control option, giving organizations more than one way to handle control of keys. Its deployment model is cloud, and its platform is web. SAP sells the service on a paid basis. Pricing is available on request, and no free plan is listed. Organizations can use the service as a web-based cloud option when AES, RSA, or ECC management, rotation, control choices, and audit logging are requirements.

Utimaco Enterprise Secure Key Manager (ESKM) centralizes cryptographic key management across on-premises and cloud environments. It provides policy controls, centralized administration, and audit trails for key lifecycle management, alongside monitoring, recovery, scheduled backups, log rotation, and restore functions. Administrators can use a web GUI or command-line interface. ESKM supports OASIS KMIP, a RESTful API, and a native XML-based KMS protocol; it conforms to KMIP specifications 1.0 through 2.1 and supports client libraries including OpenKMIP and PyKMIP. The product page states capacity for more than 2 million keys, over 25,000 clients, and thousands of nodes per distributed cluster. Four models are available, including a Linux-based virtual appliance and hardware appliances. Physical L3 and L4 models include embedded HSMs identified as FIPS 140-2 Level 3 and Level 4; the virtual L1 is a hardened appliance with FIPS 140-2 Level 1 security. Listed key types include AES, 3-Key Triple DES, HMAC, RSA, and ECDSA. Pricing is on request.