If you’ve ever gone to a website only to get a warning message that the site can’t be trusted, you know the importance of certificate lifecycle management (CLM). This phrase refers to the activities related to monitoring and updating the digital certificates that secure data exchange online.
These digital certificates don’t just protect web traffic. They also serve as machine identities, allowing applications, services, devices, and workloads to securely authenticate one another across modern IT environments.
The average organization utilizes approximately 55,000 certificates, and the task of managing these internal certificates becomes increasingly challenging as the volume increases. Organizations are deploying more applications, implementing more virtual machines, and connecting more mobile and IoT devices, all of which need trusted identities and secure connections. This results in a massive spike in the number of digital certificates organizations are issuing and managing, often with limited visibility or disparate control.
In fact, a study conducted by the Ponemon Institute showed that 74 percent of organizations were unaware of how many keys and certificates they were even using. Expired or misconfigured certificates present serious risks, including security vulnerabilities, downtime of critical business systems, failed audits, damage to brand trust, and wary customers.
Implementing proactive CLM strategies and tools can help organizations stay on top of this business-critical task and reinforce overall security posture.
重要ポイント
- Certificate lifecycle management (CLM) is essential for handling the surge of digital certificates created by cloud workloads, mobile devices, IoT, and expanding enterprise IT environments.
- Certificates are not only operational but also cryptographic assets and machine identities. CLM is critical to encryption, authentication, compliance, and long-term preparedness for post-quantum cryptography.
- Public key infrastructure (PKI) provides the foundation for CLM by defining the policies, roles, and technologies that govern issuance, validation, and retirement of certificates.
- CLM solutions integrated within cryptographic security platforms offer centralized dashboards, automated discovery and renewal, and policy enforcement across diverse environments.
- Automation reduces manual oversight, minimizes the risk of misconfigured or expired certificates, and helps security teams maintain compliance and agility.
What is certificate lifecycle management?
The processes that keep digital certificates secure and working properly are referred to as certificate lifecycle management. These electronic credentials allow devices and systems to recognize, trust, and operate with each other—a critical element in enabling business continuity in today’s digital-first world.
By identifying all certificates in use, tracking expiration dates, and eliminating unnecessary or compromised certificates, CLM helps reduce the risk of outages and unauthorized access and helps organizations comply with requirements and/or regulations, whether internal, industry or government. CLM solutions can automatically renew certificates, handle their revocation or decommissioning where appropriate, and enforce policies. This can prevent oversight that otherwise might lead to certificate misconfiguration or expiration, which can create vulnerabilities for attacks or lead to service disruptions and downtime.
The foundational technology behind certificates is called public key infrastructure (PKI) for issuing, managing, and validating certificates and their cryptographic keys. PKI defines how certificates work by establishing rules, roles, and technologies for managing certificates, while certificate lifecycle management focuses on individual certificates. Together, they help organizations protect digital assets and prevent disruptions in business operations.
The certificate lifecycle
Understanding the different steps of the certificate lifecycle can help organizations implement comprehensive management strategies that ensure complete oversight of this function and the consistent application of PKI rules.
- Issuanceis the process of requesting and issuing a new digital certificate.
- Provisioning refers to deploying the certificate to the appropriate systems, applications, or devices.
- Validation verifies the certificate’s authenticity, integrity, and proper configuration.
- Revocation involves removing compromised, unused, or invalid certificates before they expire.
- Renewal is the process of renewing a certificate that has expired or is about to.
- Destruction refers to removing expired or revoked certificates.
Each stage involves its own processes, which can quickly become complex to manage, especially at scale. For example, requesting a new certificate involves creating a certificate signing request to a certificate authority (CA). It must then be verified and digitally signed, after which it is sent back to the requesting organization.
When there are thousands of certificates in an organization, requesting and tracking them manually quickly becomes inefficient, which can result in unnecessary security risks.
This complexity highlights the need for effective certificate lifecycle management solutions. Modern CLM software and solutions can provide enhanced visibility across the range of certificates within an organization while streamlining operations through the automation of critical and routine maintenance tasks.
How CLM works
Certificate lifecycle management is much easier with dedicated software, which provides a centralized platform for orchestrating and monitoring every aspect of digital certificates, from enrollment to revocation. Streamlining and automating various tasks helps prevent oversights and other errors that can put digital certificate security at risk.
CLM processes administered through these platforms include:
- Discovery. The software scans the entire digital infrastructure, using various network and protocol methods to inventory and document every certificate.
- Integration. The platform connects with public and private certificate authorities as well as systems within the enterprise to enable cross-platform management.
- Machine identity management. CLM platforms help security teams maintain visibility and control over machine identities, which include digital certificates assigned to servers, devices, workloads, and containers. This reduces the risk of outages, unauthorized access, and unmanaged certificate sprawl.
- Automation. Issuance, renewal, deployment, and revocation, as outlined by internal policies, can be set to run automatically.
- Real-time monitoring and alerts. CLMs continuously track the status, health, expiration, and compliance of digital certificates, sending proactive notifications to avoid outages or other issues.
- Analytics and reporting. Data on usage, expiration patterns, compliance status, and other activities provide valuable insights. IT teams can apply these to support enhanced efficiency and continuous improvement in CLM processes.
Why CLM is important
Digital certificates, backed by PKI, are a critical aspect of encryption, authentication, and secure communications. Expired, misconfigured, or compromised certificates increase the chances of security risks like outages, data breaches, and cybersecurity attacks.
As organizations prepare for a post-quantum future, CLM plays a central role in cybersecurity readiness. According to the 2024 PKI and Post-Quantum Trends Study, the inability to improve discovery and inventory of cryptographic assets like keys, certificates, secrets, and algorithms is the top concern when it comes to quantum threats.
Cryptographic assets like certificates, keys, and algorithms are distributed across hybrid environments, which makes visibility the first challenge and automation the second. CLM supports discovery, assessment, and replacement workflows so teams can manage machine identities and transition vulnerable certificates in a deliberate and organized way.
Along with this, when organizations expand their digital footprint, their digital certificates may span various environments (on-premises, cloud, and hybrid), each with varying expiration dates, compliance requirements, and security risks. Managing them manually with tools like spreadsheets and disparate applications is no longer sustainable, as outages, failed authentications, and expired certificates can lead to exploitable gaps in coverage and costly downtime.
This certificate growth also leads to an expanded attack surface, creating more attack vectors for malicious actors to take advantage of. Security coverage, monitoring, and response will need to be more comprehensive to match this vulnerability.
In addition, organizations are often required to comply with industry regulations and laws related to certificate management and encryption, especially in sectors with high security needs. Failure to do so could lead to fines, damaged reputations, and a loss of customer trust.
CLM also plays a vital role in maintaining cryptographic agility. As cryptographic standards evolve, security teams must be able to quickly locate and replace vulnerable certificates and keys. The transition to post-quantum cryptography also means that organizations are going to need to swap out their existing cryptography in an organized, orderly, and timely fashion, which makes automation critical.
Modern data security solutions, like the Entrust Cryptographic Security Platform, can help organizations automate this process by bringing together PKI capabilities with certificate lifecycle management, key and secrets management, hardware security modules (HSMs) – a complete quantum-safe stack from a unified platform. These solutions support CLM with clear policies and automated processes to help streamline the task of monitoring certificates, while laying the foundation for long-term agility and post-quantum resilience.
CLM use cases
CLM security is critical in sectors where organizations handle highly sensitive or private data. PKI and digital certificates work together to provide the foundation for encryption, authentication, and secure communication.
In finance and banking, CLM helps secure online banking transactions by ensuring certificates are valid. Organizations also rely on CLM to maintain compliance with industry regulations related to the encryption of data during payment processing. Expired certificates in this industry can quickly erode trust among customers and even disrupt operations, such as on trading platforms.
CLM has comparable applications in healthcare. These include managing the certificates that secure encrypted communications in EHR systems and ensuring compliance with HIPAA requirements. Digital certificates also support secure telehealth platforms and the authentication of medical devices when they collect patient information or connect to hospital networks.
In the government sector, CLM supports digital certificate security when authenticating users accessing portals and systems for filing their taxes, obtaining social security or unemployment benefits, and accessing other services. It also helps protect classified and sensitive data exchange between departments.
Finally, CLM is increasingly essential for large enterprises, which often manage thousands of certificates across complex IT environments including on-premises, cloud, and hybrid systems. These complex digital ecosystems have higher risks of exploitation via security gaps and undiscovered vulnerabilities. Proactive cryptographic security management is essential for enterprise organizations to keep pace with the growing number of keys and certificates in these sprawling IT environments.
CLM supports secure communication between workloads and systems by managing machine identities at scale. This includes automating certificate lifecycles for internal services, containers, and connected devices.
Certificate lifecycle management best practices
These proven best practices can support effective CLM throughout an organization as certificates proliferate and operations expand.
- Centralize your CLM within a single dashboard. Managing certificates across multiple tools and teams creates blind spots and increases the chance of errors. A centralized dashboard gives security teams a single view into certificate health, ownership, and policy enforcement across the organization. Modern features like integrated reporting and role-based access can help IT spot issues early, streamline certificate renewals, and maintain consistent practices, regardless of certificate source.
- Establish a policy documenting certificate lifecycle management operations. Start with a clear policy in alignment with PKI standards that outlines how digital certificates are requested, approved, issued, renewed, and revoked. Define the roles and responsibilities for certificate ownership and oversight, determine which certificate authorities are trusted, and detail procedures for certificate-related incidents. Review and update this policy regularly to ensure it is aligned with evolving security standards and regulations.
- Enable ongoing certificate discovery. Automated tools should regularly scan all environments and platforms across a network for certificates, including those that are missing, unused, or compromised. This can help uncover “shadow” certificates that could result in unplanned outages or vulnerabilities as well as certificates automatically provisioned by cloud providers and other vendors.
- Set up continuous monitoring. PKI platforms provide the foundation for proactive certificate monitoring across IT environments. These tools enable teams to track certificate health, expiration, and usage from a centralized view. Focuses of these tools include continuous discovery, visibility into certificates issued from multiple certificate authorities, and flexible import options. Role-based access controls and customizable alerts can help teams respond early to expiring or misconfigured certificates and enforce defined responsibilities.
- Make the most of automation. Manual tracking and renewal processes can’t keep pace in environments with thousands of certificates. Using PKI-backed automation can streamline discovery, renewal, and revocation, while also handling bulk imports, syncing with cloud services, and pushing updates directly to endpoints. Automation is also essential for maintaining crypto agility. It helps organizations identify and replace vulnerable certificates as they prepare for the adoption of post-quantum algorithms.
Supporting certificate lifecycle management with Entrust
The Entrust Cryptographic Security Platform brings PKI software and certificate lifecycle management together in a single, automated solution, providing centralized visibility across certificates from multiple CAs, advanced reporting for discovery and inventory, and automated issuance, renewal, and revocation. With built-in policy enforcement, role-based access, and integration with HSMs, this unified platform helps organizations maintain security and compliance standards while streamlining day-to-day operations.
Learn more about the evolving tools, technologies, and trends that can help keep your business secure and post-quantum ready in our ebook, A Guide to Data Security.
よくある質問
Why is certificate lifecycle management important?
Certificate lifecycle management ensures all digital certificates are discovered, monitored, and renewed before they expire. This reduces security risks and service disruptions while supporting compliance with industry and legal regulations.
What are the phases of the certificate lifecycle?
The phases include:
- Issuance (requesting and issuing a new certificate)
- Provisioning (deployment into the system)
- Validation (verifying authenticity and configuration)
- Revocation (removing compromised, unused, or invalid certificates)
- Renewal (renewing certificates that have or are about to expire)
- Destruction (removing expired or revoked certificates)
What tools are used to manage certificate lifecycles?
CLM solutions help automate and streamline certificate discovery, issuance, renewal, deployment, revocation, alongside alerts and reporting, reducing the security risks associated with manual certificate management. Many modern PKI solutions combine CLM with PKI and include an HSM root of trust, providing end-to-end visibility and management of keys, secrets, and certificates.
What is the difference between certificate management and PKI management?
Certificate management focuses on handling individual digital certificates throughout their lifecycles, while PKI management oversees the entire infrastructure which ultimately issues those certificates, including roles, policies, and technologies. Many modern data security platforms, like the Entrust Cryptographic Security Platform, combine these various features into a single comprehensive management solution.
