Crypto-Agility for HPE Nonstop

HPE Nonstop environments have always been built around trust, availability, and operational resilience. But the trust fabric around those environments is changing.

Certificates, keys, secrets, SSH, and TLS are no longer background technical details. They are critical operational dependencies. If a certificate fails unexpectedly, a private key is mishandled, a password remains exposed in a configuration file, or secure connectivity cannot be adapted to new requirements, the impact is not only a security issue. It can become an availability, compliance, and resilience issue.

For Nonstop customers, this matters because these systems support mission-critical workloads. They often sit at the center of payment processing, banking, retail, telecommunications, and other services where disruption is unacceptable. Cryptography in this context is not simply about algorithms. It is part of the operational foundation.

That foundation now needs to evolve.

Certificate Lifecycle Automation Is Coming to Nonstop

One area that is becoming increasingly important is certificate lifecycle automation.

In many enterprise environments, certificate management has moved from an occasional administrative task to a continuous operational process. Certificates need to be discovered, issued, renewed, deployed, rotated, revoked, monitored, and reported on reliably. Security teams want visibility. Operations teams need predictability. Auditors expect evidence. Application teams need secure connectivity without last-minute emergencies.

For HPE Nonstop, this type of capability has not really been available as a complete productized operating model. That is changing.

With TAMUNIO Assure, comforte is bringing certificate lifecycle automation and broader crypto-agility to Nonstop. But certificate automation is only one part of the larger challenge. The broader challenge is managing the full cryptographic and security lifecycle in Nonstop environments; not only automating certificate renewal.

That broader picture includes certificates, private keys, passwords, secrets, SSH, TLS configuration, sensitive files, auditability, governance, HSM-backed controls, and the ability to keep Nonstop resilient while still connecting it to enterprise security processes.

That is why Assure should not be seen simply as a certificate tool. It is designed to help Nonstop customers move toward a more complete operating model for cryptographic trust.

The goal is not simply to rotate certificates. The goal is to modernize cryptographic operations across the Nonstop platform.

Why the Timing Matters

The timing is important for two reasons: shorter certificate lifetimes and post-quantum cryptography (PQC).

Public TLS certificate lifetimes are being shortened significantly over the next few years. The industry is moving from annual-style certificate cycles toward much shorter validity periods: 200 days from March 2026, 100 days from March 2027, and 47 days from March 2029.

A 47-day certificate world is not compatible with manual certificate management.

Shorter certificate lifetimes create more renewals, more monitoring requirements, more opportunities for failure, and more pressure on automation. What may have been manageable through manual processes or scripts in the past becomes an operational risk when renewal cycles become continuous.

For mission-critical environments, that risk is unacceptable. Certificate lifecycle automation becomes a resilience requirement.

Post-Quantum Readiness Starts Now

PQC adds another layer of urgency.

Nonstop customers need to start their post-quantum journey now. This is not only about a future point in time when quantum computers may be able to break today’s public-key cryptography. The risk starts earlier because of what is often called harvest now, decrypt later (HNDL). Encrypted data can be captured today and stored until future capabilities make it possible to decrypt.

That matters for any organization handling sensitive, long-lived data.. In banking, payments, government, healthcare, and other regulated industries, sensitive information often remains so for many years. Waiting until the threat is fully mature is not a responsible strategy.

For HPE Nonstop environments, cryptographic change cannot be improvised. These systems support mission-critical workloads, and changes to SSH, TLS, certificates, keys, and related infrastructure need to be planned, tested, and operationalized carefully.

The starting point is crypto-agility: the ability to understand where cryptography is used and to adapt algorithms, keys, certificates, protocols, and policies as requirements evolve.

Post-quantum readiness is a journey, but it is not a journey organizations can afford to start late.

PQC Is Not Only an Algorithm Change

PQC is often discussed in terms of algorithms. That is understandable, but incomplete.

PQC readiness affects the entire operating model around cryptographic trust. It touches certificates, keys, SSH, TLS, validation, lifecycle management, interoperability, monitoring, and governance.

During the transition, many organizations will use hybrid cryptographic approaches, combining classical algorithms with post-quantum algorithms. This is often the practical path because it supports compatibility and risk reduction during a period of change. But it also increases operational complexity. Services may need to handle more key and certificate material, larger certificates, different algorithm combinations, and more complex validation and renewal processes.

That makes inventory, automation, and governance essential.

The hard part of PQC is not only selecting an algorithm. It is operationalizing cryptographic change safely.

SSH Needs the Same Lifecycle Discipline

TLS certificates are not the only area that needs modernization. SSH access also deserves attention.

Many environments still rely on long-lived SSH public keys. Over time, these keys can accumulate. Ownership becomes unclear. Rotation becomes difficult. Revocation is not always consistent. Auditability can become limited. In some environments, the result is a growing access-control problem that is hard to see and harder to govern.

A more modern approach is to move toward shorter-lived SSH certificates where possible. SSH certificates create a more controlled lifecycle model: issue, expire, rotate, revoke, and audit. This aligns SSH access more closely with the operating discipline now expected for TLS.

For Nonstop customers, this is especially important because SSH is part of the operational access model. It must be secure, governable, and resilient without making mission-critical operation fragile.

Avoiding Protection Gaps

Certificate lifecycle automation is important, but it does not solve the entire problem by itself.

If a certificate is renewed automatically but a password remains in clear text in a configuration file, there is still a protection gap. If private keys are not adequately protected, the certificate lifecycle may be automated but the trust foundation is still weak. If secrets are copied manually, stored inconsistently, or not rotated, the environment remains exposed.

A complete cryptographic operating model has to address these areas together.

That means looking at certificates, private keys, passwords, secrets, SSH keys or certificates, TLS configuration, sensitive files, audit evidence, and governance as part of one trust fabric. Automating one part while leaving other exposure paths open is not enough for mission-critical environments.

Crypto modernization must avoid protection gaps.

Private-Key Protection Matters

A certificate is only as trustworthy as the protection of the private key behind it.

Private keys need to be generated, stored, accessed, and rotated under strong controls. For high-assurance environments, that often means HSM-backed protection where appropriate, along with split knowledge, dual control, separation of duties, and auditability.

This is especially relevant for regulated and mission-critical environments. Customers need to know not only that certificates exist and renew on time, but also how the corresponding key material is protected, who can access it, how access is approved, and how evidence is produced for auditors.

Without strong private-key protection, certificate automation is incomplete.

Randomness: The Overlooked Foundation of PQC Readiness

Post-quantum algorithms depend on high-quality cryptographic randomness for key generation and related operations. Weak entropy, poor random-number generation, or insecure seed handling can undermine even strong algorithms.

This is particularly important on specialized mission-critical platforms. A general-purpose random function may be useful in some contexts. But it should not be treated as a complete standalone cryptographic-grade randomness foundation for key generation, certificates, SSH, TLS, secrets, or PQC operations.

Hardware entropy can be valuable, but it should not be trusted blindly as the only source of cryptographic randomness. CPU random instructions and hardware random-number sources can be opaque. And they may raise questions around supply-chain trust, firmware or microcode behavior, validation, implementation quality, and whether a single opaque source should be the sole basis for cryptographic operations.

A stronger model is to collect, condition, test, and combine appropriate entropy sources, then feed a cryptographic random bit generation mechanism suitable for the required assurance level.

A PQC-capable algorithm is only as trustworthy as the cryptographic foundation around it.

Keeping Nonstop Nonstop

Enterprise integration is valuable. Nonstop customers increasingly need to connect to enterprise certificate-management processes, security monitoring, governance workflows, HSMs, and automation models such as ACME-based certificate automation.

But that integration must not compromise what makes Nonstop valuable.

Nonstop environments are trusted because they continue operating under demanding conditions. Core mission-critical operation should not become fragile because an external enterprise system, management layer, or certificate service is unavailable.

That is a core design point for TAMUNIO Assure. The product is able to operate completely independently of any enterprise dependency, so Nonstop environments can maintain local resilience and continue operating even if external enterprise services are unavailable. At the same time, Assure is designed to support enterprise connectivity where customers want it, including ACME support for organizations that want to integrate certificate lifecycle automation with broader enterprise certificate-management processes.

A strong operating model should provide both: independent Nonstop resilience and enterprise connectivity where it adds value. Nonstop should be able to operate reliably in its own right while still aligning with enterprise governance, audit, and automation processes.

Enterprise integration should make Nonstop easier to govern, not less resilient.

Where TAMUNIO Assure Fits

TAMUNIO Assure was developed to help Nonstop customers move from fragmented cryptographic operations toward a more complete, automated, and crypto-agile trust model.

It addresses certificate lifecycle automation, keys, secrets, SSH, TLS, sensitive files, governance, and post-quantum readiness in a way that respects the operational requirements of HPE Nonstop environments.

The purpose is not to introduce change for its own sake. The purpose is to help customers modernize cryptographic operations while preserving the resilience and trust they expect from Nonstop.

Assure can operate independently of enterprise dependencies to preserve Nonstop resilience, while also supporting enterprise integration, including ACME support, for customers who want to connect certificate lifecycle processes into their broader security architecture.

Across the Broader Nonstop Software Estate

A key point is that Assure is not only for comforte products. It is designed as a broader Nonstop capability that can help protect and manage certificates, keys, secrets, and sensitive files across the Nonstop software estate.

That includes comforte solutions, but also other Nonstop applications, utilities, vendor software, scripts, integration components, and operational processes that depend on cryptographic trust.

That breadth matters because real Nonstop environments are not built around a single product. The trust model has to work across the landscape customers actually operate.

Transparent Integration with Minimal Disruption

Once the key capabilities are clear, the next question is how to implement them without disrupting mission-critical systems.

Where possible, integration should be transparent to the application. Using intercept technology or other smart integration approaches, cryptographic protection and lifecycle management can often be introduced without forcing invasive application changes.

This is important because mission-critical environments cannot always afford deep application modifications simply to improve certificate, key, secrets, or file protection. The security model has to adapt to the operational reality of Nonstop.

Transparent integration helps customers modernize security while preserving the stability of existing workloads.

How Discover Complements Assure

Assure also connects naturally with TAMUNIO Discover.

Discover can help customers understand what exists in the environment before they modernize it: sensitive data, certificates, cryptographic assets, and configuration files used by common Nonstop tools. In some cases, those configuration files may contain secrets, such as passwords used to decrypt private keys.

That visibility is valuable because customers cannot protect, govern, or automate what they cannot first identify.

In that sense, Discover and Assure are complementary. Discover helps identify sensitive data, cryptographic assets, and potential exposure points. Assure helps manage, protect, and automate the cryptographic trust fabric.

Looking at the Whole Crypto-Modernization Problem

If customers look at the whole problem, several areas need to be solved together.

First, there is lifecycle automation. Certificates need to be issued, renewed, deployed, rotated, revoked, monitored, and reported on reliably.

Second, there are secrets and password protection. Automating certificates does not close the gap if passwords or secrets remain exposed in configuration files or manual procedures.

Third, there is private-key protection. Keys need to be generated, stored, accessed, and rotated under strong controls. For high-assurance environments, that often means HSM-backed protection, split knowledge, dual control, separation of duties, and auditability.

Fourth, there is SSH modernization. Many environments still rely on long-lived SSH keys, but shorter-lived SSH certificates provide a more governable model for the future.

Fifth, there is crypto-agility and PQC readiness. Customers need to understand where cryptography is used and how quickly they can adapt algorithms, certificates, keys, protocols, and policies as requirements evolve.

Sixth, there is strong randomness. Key generation and PQC operations require cryptographic-grade entropy and random bit generation, not generic randomness treated as a complete trust foundation.

Finally, there is the Nonstop operating model. Enterprise connectivity is valuable, but Nonstop must remain resilient and independently operable. The goal is to connect Nonstop to enterprise security processes without making mission-critical operation fragile.

If you look at the whole problem, certificate automation is only one dimension. The broader challenge is managing the full trust fabric in a way that is complete, auditable, resilient, transparent where possible, and ready for change.

Start Now, Modernize Deliberately

The organizations that are best prepared for PQC will not be the ones that wait for a final deadline and then try to replace everything at once. They will be the ones that start now.

That means inventorying cryptographic dependencies. Identifying certificate, key, secrets, SSH, TLS, and sensitive-file usage. Closing protection gaps. Moving away from manual lifecycle processes. Preparing for shorter certificate lifetimes. Strengthening randomness and key generation. Building crypto-agility. And doing all of this in a way that preserves Nonstop resilience.

For HPE Nonstop, the goal is not simply modern cryptography.

The goal is modern cryptographic operations for mission-critical systems.