HSM operations

HSM operations that plan for failure.

Protected keys must remain usable even during updates, device failures and staff changes. We take on agreed operating tasks for your HSM environment and prepare maintenance, recovery and hardware generation changes using documented procedures.

What we take care of Discuss your project

Operations manual with escalation paths · Planning and implementation by OTOKO®

Your brief for OTOKO®

What we take care of for you.

A reachable HSM can still be unusable for an application: all sessions are in use, permissions are missing or the network connection times out. We combine device metrics with selected application tests and controlled alerting. Logs are meant to make administrative actions traceable without capturing secrets. For each alert, we define who handles it, at what times and which interventions are permitted.

The possible scope of services

Record inventory, responsibilities and dependencies
Set up monitoring and alert paths
Test and plan firmware and client changes
Test recovery and site failure
Support device replacement and secure decommissioning

We define the specific scope, your involvement and the acceptance criteria before the start.

Technology explained clearly

How we carry out the task.

Testing updates and backups together

Firmware, the client library and the application form one shared operating chain. Changes are first reviewed in a suitable test environment; vendor guidance and the required certification mode feed into the approval. For backups, the mere existence of a file is not enough. The required means of access, custodians, compatible devices and recovery procedures must be available. We test the agreed restart and document limits, for example where certain keys must not be replicated or exported.

Making migration and decommissioning predictable

A hardware generation change begins with an inventory, a compatibility check and key mapping. Cutover and fallback are planned per application. Approved decommissioning, with matching key destruction and evidence, only takes place once the takeover has been confirmed. The handover also covers staff changes: revocation of rights and replacement of the means of access must work without making the organization dependent on a single person.

High availability is not a recovery plan

A cluster can absorb a device failure and still carry the same misconfiguration on several nodes. Backups, means of access and restart procedures must therefore be considered independently. OTOKO® works with your team to plan which failures should be covered and how quickly a usable application must return. The test does not end with a successfully imported backup: a representative signing or decryption operation must also work again.

Connecting monitoring, maintenance and escalation

Operations need visible signals and a person authorized to respond to them. We map device alerts, failed logins and application tests to specific actions. Changes to firmware, clients and permissions are approved in a traceable way. For the agreed support, service hours, availability and handover to vendors or other operations partners are defined. An application that runs around the clock does not automatically come with a 24/7 support contract.

Example: managing end-of-life without losing keys

An existing HSM series is approaching end of support. OTOKO® records the mechanisms in use, exportable and non-exportable keys, and remaining dependencies. This results in a migration plan with a test environment, parallel operation and clear abort criteria. After the changeover, application tests and backup recovery on the target platform are documented. Only once the business and technical requirements are met do controlled deletion and decommissioning of the old devices follow.

Meeting room at the OTOKO® Cologne office

A verifiable result

What you keep working with.

Operations manual with escalation paths
Maintenance and lifecycle plan
Recovery and migration test reports

The handover brings together implementation and documentation. Together, we review the agreed cases and record any remaining tasks.

Before the first step

Your questions about HSM operations.

Does a second HSM amount to an emergency plan?

No. It requires matching keys, a working application failover, available custodians and tested procedures. These prerequisites are reviewed together.

Does operation automatically include round-the-clock service?

No. Service hours, response paths and the scope of responsibility are defined in the proposal. We derive monitoring and on-call duty from these.

How do RTO and RPO differ in HSM operations?

RTO describes the targeted time to recovery, RPO the tolerable loss since the last saved state. For keys, changes since the backup and the data that depends on them must also be taken into account. Both targets are reviewed together with the application.

Is an existing backup sufficient as evidence?

No. Compatible hardware, required approvals and means of access must be available. A recovery test should also prove that the application can perform its intended operations with the restored keys.

How do you support a vendor change?

We first review export rules, available handover procedures and the target integration. For keys that cannot be transferred, new keys and a controlled changeover of certificates or data may be necessary. A lossless, direct takeover is not promised as a general rule.

Is a firmware update sufficient for post-quantum cryptography?

Only if hardware, firmware, the application and the required evidence fit together. Support for an algorithm in the device does not by itself mean that protocols, certificates and counterparts can use it. We plan the transition as a coordinated change across the entire chain of use.

Your project

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HSM operations that plan for failure.