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As someone who has managed and navigated the intricate world of SSL certificates, I understand the complexities and challenges of maintaining a secure online presence.

In today's digitally interconnected world, safeguarding sensitive data and maintaining trust is paramount. Public Key Infrastructure (PKI) plays a crucial role in securing digital identities, communications, and transactions. However, managing and maintaining a robust PKI can be complex and time-consuming.

Challenges such as certificate issuance, revocation, and key management often overwhelm IT teams. Managed PKI software can be a lifesaver in this environment. Whether you're struggling with certificate lifecycle management, compliance requirements, or scalability issues, this article will help you identify the ideal PKI solution to protect your organization's digital assets.

In my experience, a carefully chosen PKI tool significantly streamlines security management, allowing you to focus on your core business operations.

What Is PKI Software?

Public Key Infrastructure (PKI) software forms the backbone of secure digital communication, providing a framework for creating, distributing, managing, and revoking digital certificates. These certificates validate the identity of individuals, systems, or devices on a network, ensuring only authorized parties can access sensitive information.

Whether you are working on-premises or in the cloud, such software automates the provisioning and validation of digital certificates, significantly reducing the vulnerabilities associated with manual certificate management. By utilizing a solution like AWS Certificate Manager or any of the other PKI management tools, you can rest assured that your certs are handled securely, mitigating risks such as downtime and outages.

They can efficiently address workload-specific needs and tackle potential crypto-related issues. Cloud-based PKI tools, in particular, offer a level of convenience and flexibility, eliminating the hassles of traditional on-premises IAM management.

Best PKI Software Summary

Tools Price
HashiCorp Vault Pricing upon request
DigiCert PKI Platform Pricing upon request
Keycloak Open source project and Available for free
GoDaddy PKI Platform From $7.50/user/month (billed annually)
KeyTalk From $12/user/month (billed annually)
Microsoft Active Directory Certificate Services (AD CS) From $972/user (billed annually)
OpenXPKI Open source project and Available for free
GlobalSign PKI Pricing upon request
EJBCA (Enterprise JavaBeans Certificate Authority) Pricing upon request
Ubisecure Certificate Authority From $10/user/month (billed annually)
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Best PKI Software Reviews

Best for automated security management, safeguarding sensitive data with ease

  • Pricing upon request
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Rating: 4.3/5

HashiCorp Vault takes charge of your digital security, providing a comprehensive suite for identity-based access and safeguarding sensitive data across various systems. The tool impressively automates the management of secrets, encryption keys, and certificates.

Why I Picked HashiCorp Vault:

I chose HashiCorp Vault due to its commitment to security automation. In the dynamic landscape of digital security, Vault excels at streamlining the process and reducing manual oversight. The tool's remarkable focus on automation provides a formidable shield for sensitive data.

Hence, I believe HashiCorp Vault truly stands out as the best choice for businesses needing to handle automated security management.

Standout Features and Integrations:

Vault’s dynamic secrets feature reduces the risk of unwanted data exposure by creating secrets on demand that get revoked after use. Its encryption as a service module allows users to encrypt data without dealing with the complexities of key management.

As for integrations, Vault plugs into your existing infrastructure seamlessly. It works well with popular platforms like AWS, Google Cloud, and Azure, providing extensive coverage.

Pros and cons

Pros:

  • Dynamic secrets ensure maximum data safety
  • Wide array of integrations for versatile deployment
  • Robust and flexible key and secrets management

Cons:

  • Pricing structure is not transparently listed
  • Detailed documentation may be overwhelming
  • Steep learning curve for new users

Best for lifecycle management, streamlining certificate issuance and renewal

  • Pricing upon request

DigiCert PKI Platform provides scalable and reliable high-assurance certificate solutions. It shines in lifecycle management by simplifying and automating the processes of issuing, renewing, and managing digital certificates, making it the best choice for these tasks.

Why I Picked DigiCert PKI Platform:

I chose the DigiCert PKI Platform due to its comprehensive approach to certificate lifecycle management, which makes it stand out among other tools. Its automation of intricate certificate-related processes supports why it's the best for lifecycle management, ensuring certificate operations remain efficient and streamlined.

Standout Features and Integrations:

The platform's notable features include automated certificate issuance and renewal, intuitive UI for easy management, and robust APIs for integration. DigiCert PKI Platform also offers key integrations with widely used systems like Microsoft Active Directory, Microsoft Autoenrollment, and other IT infrastructure components, extending its certificate lifecycle management capabilities into these environments.

Pros and cons

Pros:

  • Offers a user-friendly management interface
  • Robust APIs enable integration with various systems
  • Streamlines certificate issuance and renewal processes

Cons:

  • Setup and configuration can be time-consuming
  • Some users may find the platform’s extensive features overwhelming
  • Pricing structure can be complex and is not directly available

Best for seamless integration, offering out-of-the-box support for multiple protocols

  • Open source project and Available for free

Keycloak is an open-source Identity and Access Management solution that can authenticate users with existing LDAP or Active Directory credentials. Its edge lies in providing out-of-the-box support for multiple protocols, which supports seamless integration and makes it the best choice for this specific need.

Why I Picked Keycloak:

Keycloak earned its place on this list for its strong integrative capabilities, particularly its native support for multiple protocols. I selected it as the best for seamless integration as it ensures a simplified and efficient setup across diverse systems, which sets it apart in the marketplace.

Standout Features and Integrations:

Keycloak excels with features like Single-Sign-On (SSO), identity brokering, and its built-in support for multiple protocols such as OpenID Connect, SAML 2.0, and LDAP. Keycloak can also integrate smoothly with various applications and services, including microservices, monoliths, and cloud services, making it versatile for many infrastructural setups.

Pros and cons

Pros:

  • Versatile integration with various types of applications and services
  • Strong feature set including SSO and identity brokering
  • Support for multiple protocols enables seamless integration

Cons:

  • Updates and new features are dependent on the open-source community
  • Support is reliant on community or paid services
  • May require technical expertise for setup and management

Best for reliability, backed by a globally recognized and trusted brand

  • From $7.50/user/month (billed annually)

GoDaddy PKI Platform is a comprehensive security solution that helps organizations manage digital certificates for their systems and services. GoDaddy, as a globally recognized brand, ensures that its PKI platform is backed by a level of trust and reliability that's hard to beat.

Why I Picked GoDaddy PKI Platform:

In choosing tools for this list, GoDaddy PKI Platform stood out for its association with a highly trusted brand in the domain and hosting industry. Its global recognition provides a level of reliability, which was the deciding factor in determining it as the best for reliability among the lot.

Standout Features and Integrations:

GoDaddy PKI Platform comes with robust features, including management of SSL/TLS certificates and multiple domain support. Its integrations are noteworthy too, featuring support for various servers and systems like Apache, Microsoft servers, and more.

Pros and cons

Pros:

  • Good integration with various servers and systems
  • Supports the management of multiple domain certificates
  • Backed by a globally recognized and trusted brand

Cons:

  • Some advanced features may only be available at higher pricing tiers
  • Support services have received mixed reviews
  • The pricing structure may be complicated for some

Best for scalable security, ensuring powerful encryption across countless devices

  • From $12/user/month (billed annually)

KeyTalk serves as an effective PKI solution designed to secure and automate the management of your digital certificates across multiple devices. KeyTalk's strength lies in its scalability, making it ideal for organizations dealing with a large number of devices, hence being the best for scalable security.

Why I Picked KeyTalk:

I chose KeyTalk because of its impressive ability to scale and manage certificate lifecycles across countless devices, setting it apart from other PKI solutions on the list. In terms of securing numerous devices, I believe KeyTalk comes out on top, hence I deem it the best for scalable security.

Standout Features and Integrations:

KeyTalk's foremost features include automatic certificate renewal, revocation, and installation across various devices. It also excels in supporting different certificate types like SSL/TLS, code signing, and user certificates. Notably, KeyTalk integrates with a broad range of server systems, software applications, and network components, amplifying its usability across diverse IT infrastructures.

Pros and cons

Pros:

  • Extensive system and application integrations
  • Broad range of certificate support
  • Exceptional scalability for device management

Cons:

  • Premium price point may not fit all budgets
  • Interface might be challenging for novice users
  • Could be overkill for smaller businesses

Best for Windows-centric environments, providing a fully integrated PKI solution within the Microsoft ecosystem

  • From $972/user (billed annually)

Microsoft Active Directory Certificate Services (AD CS) is a role in Windows Server that allows the creation of a fully functional public key infrastructure (PKI). Being tightly integrated with the Microsoft ecosystem, it becomes the go-to PKI solution for Windows-centric environments.

Why I Picked Microsoft Active Directory Certificate Services (AD CS):

In the process of selecting PKI tools, AD CS caught my attention due to its seamless integration within the Microsoft ecosystem. This integration, I believe, positions it as the best choice for Windows-centric environments, where it can provide a streamlined and native PKI solution.

Standout Features and Integrations:

AD CS features include the ability to customize certificate contents and extensions, and it supports automated certificate issuance through templates. Its biggest strength is its integration with Microsoft Active Directory, allowing for simple deployment and management of certificates within a Windows environment.

Pros and cons

Pros:

  • Automated certificate issuance through templates
  • Customizable certificate contents and extensions
  • Seamless integration within the Microsoft ecosystem

Cons:

  • Requires a Windows Server license, which can be pricey for smaller organizations
  • Can be complex to set up without a good understanding of PKI principles
  • Limited to Windows environments

Best open-source solution, enabling tailor-made security architecture at zero cost

  • Open source project and Available for free

OpenXPKI is a powerful open-source PKI solution designed for flexibility and security. The tool brings to the table a scalable and enterprise-ready architecture that allows you to mold a security solution that aligns with your unique needs.

Why I Picked OpenXPKI:

OpenXPKI caught my attention for its open-source nature. This factor not only makes it a cost-effective option but also enables extensive customization and scalability. It's the diversity in design and adaptability that sets OpenXPKI apart, earning it the title of the best open-source solution for tailoring security architecture.

Standout Features and Integrations:

OpenXPKI offers a feature-rich environment with customizable workflows, support for multiple CA hierarchies, and sophisticated token handling. The tool also provides an extensive API for integration and automation, and it plays well with a range of databases including MySQL, Oracle, and PostgreSQL.

Pros and cons

Pros:

  • Solid API for integrations and automation
  • Extensive customization and scalability options
  • Open-source and free to use

Cons:

  • Absence of dedicated customer support
  • Requires more setup compared to commercial PKI solutions
  • The learning curve may be steep for beginners

Best for enterprise-level protection, featuring high volume issuance and automated enrollment

  • Pricing upon request

GlobalSign PKI is a platform designed to secure organizations' digital identities at scale. It excels in issuing large volumes of certificates and automated enrollment, making it a top choice for businesses seeking robust, enterprise-level protection.

Why I Picked GlobalSign PKI:

When selecting tools for this list, I evaluated each based on their distinctive qualities. GlobalSign PKI emerged due to its capacity to handle high-volume issuance and automated enrollment, which are critical in enterprise-level protection. This robust capability justifies why I believe it is the best for businesses that require extensive protection.

Standout Features and Integrations:

GlobalSign PKI has a robust set of features, including certificate lifecycle management, automated enrollment, and support for multiple certificate types. It offers integrations with Microsoft Active Directory and other IT infrastructure systems, ensuring wide coverage of protection across different organizational applications.

Pros and cons

Pros:

  • Offers automated enrollment for ease of use
  • Handles high-volume certificate issuance efficiently
  • Provides extensive enterprise-level protection

Cons:

  • The platform may have a steep learning curve for those new to PKI solutions
  • Some customers have reported slow customer service response times
  • Lack of transparent pricing can be challenging for potential users

Best for interoperability, supporting all major protocols and hardware

  • Pricing upon request

EJBCA is a robust, platform-agnostic PKI solution, designed to enable seamless issuance and management of digital certificates. Given its ability to support all major protocols and hardware, EJBCA is best for interoperability in diverse IT environments.

Why I Picked EJBCA:

I selected EJBCA for this list because it stands apart with its broad interoperability. Its compatibility with major protocols and hardware sets it apart and makes it an ideal choice for diverse IT ecosystems. Therefore, I judged it to be the best for interoperability.

Standout Features and Integrations:

EJBCA boasts a rich feature set, including extensive certificate life cycle management, flexible integrations, and support for hardware security modules. It integrates with a variety of platforms and devices, reinforcing its standing as a versatile, interoperable PKI solution.

Pros and cons

Pros:

  • Extensive platform and device integrations
  • Robust certificate life cycle management
  • High interoperability with major protocols and hardware

Cons:

  • Community support may not be as responsive or comprehensive as Enterprise support
  • May be complex to set up for those unfamiliar with Java-based applications
  • Enterprise version pricing is not publicly available

Best for digital identity management, providing robust identity proofing and lifecycle management

  • From $10/user/month (billed annually)

Ubisecure Certificate Authority is a cutting-edge tool that goes beyond the traditional role of a PKI solution. Not only does it manage digital certificates, but it also shines in its comprehensive approach to identity lifecycle management.

Why I Picked Ubisecure Certificate Authority:

I was drawn to Ubisecure for its robust and comprehensive feature set, particularly around digital identity management. Unlike other tools on this list, Ubisecure presents a broader approach, ensuring all aspects of the digital identity lifecycle are catered to. This makes it stand out, leading me to designate it as the best for digital identity management.

Standout Features and Integrations:

Ubisecure Certificate Authority stands out with its identity-proofing capabilities, identity lifecycle management, and multi-factor authentication support. This tool seamlessly integrates with existing IT environments and supports numerous protocols such as SAML, OAuth, and OpenID Connect, extending its reach and applicability.

Pros and cons

Pros:

  • Strong support for multi-factor authentication
  • Robust integration capabilities
  • Comprehensive approach to identity management

Cons:

  • Limited third-party reviews available for the software
  • The user interface may be complex for beginners
  • Pricing might be steep for small businesses

Other PKI Software

Below is a list of additional PKI software that I shortlisted, but did not make it to the top 10. Definitely worth checking them out.

  1. Venafi

    Best for automation, offering zero-touch issuance and renewal of certificates

  2. PrimeKey EJBCA® Enterprise

    Best for flexible deployment, offering customization to suit diverse needs

  3. GlobalSign IoT Identity Platform

    Best forIoT device manufacturers needing scalable identity management solutions

  4. GnuPG

    Best forthose requiring free encryption software compliant with OpenPGP standards

  5. SecureW2

    Best fornetworks requiring strong Wi-Fi security and onboarding solutions

  6. Sectona

    Best forbusinesses looking for privileged access security solutions

  7. RSA Certificate Manager

    Best forenterprise-grade lifecycle management of digital certificates

  8. OpenSSL

    Best fordevelopers needing a robust, versatile cryptography library

  9. OpenCA PKI

    Best foracademic and research environments with a need for a flexible PKI infrastructure

  10. keyfactor Command

    Best formanaging large-scale, complex certificate infrastructures

  11. FreeIPA

    Best foridentity management in Linux/Unix environments

  12. SafeNet Trusted Access

    Best fororganizations in need of intelligent access management and multifactor authentication solutions

  13. Dogtag Certificate System

    Best fororganizations seeking open-source PKI solutions

Selection Criteria For PKI Software

In my journey to find the best public key infrastructure (PKI) software, I evaluated dozens of tools. My focus was on core functionality, key features, and usability, areas that are particularly critical in the world of PKI management. Let's take a closer look at the specifics.

Core Functionality

PKI software must deliver on:

  • Certificate Issuance: It should provide easy certificate issuance for diverse requirements such as SSL/TLS, email, code signing, and user/device authentication.
  • Certificate Management: The ability to track, renew, and revoke certificates is fundamental.
  • Scalability: Capable of supporting an expanding user base or increase in certificate issuance without compromising performance.

Key Features:

For this software category, the most significant features include:

  • Interoperability: The software must be compatible with different systems, applications, and hardware for smooth operation.
  • Automation: Automatic issuance and renewal of certificates reduce manual effort and associated errors.
  • Role-based Access Control: Allows only authorized individuals to issue and manage certificates.
  • Reporting and Analytics: Provides insights into the status of your certificates and their usage.

Usability:

In terms of usability, I focused on:

  • Performance: The software should be able to handle large amounts of certificate management tasks without slowing down or becoming unresponsive.
  • User Interface: PKI software should have an intuitive and well-organized interface, especially for managing large volumes of certificates.
  • Onboarding and Support: Given the complexity of PKI, comprehensive documentation, training resources, and responsive support are essential.
  • Integration Capabilities: PKI solutions need to integrate easily with existing systems and workflows, reducing the complexity of implementation.
  • Performance: The software should be able to handle large amounts of certificate management tasks without slowing down or becoming unresponsive.

People Also Ask

What are the benefits of using PKI software?

Using PKI software brings numerous advantages:

  1. It enhances security by using cryptographic techniques for data encryption and digital signature creation and verification.
  2. PKI tools streamline certificate lifecycle management, ensuring timely issuance, renewal, and revocation.
  3. The software provides automation, minimizing the risk of manual errors and saving time.
  4. It aids in compliance with regulatory and industry standards by ensuring the secure transmission of sensitive information.
  5. PKI software often comes with robust reporting and analytics features, helping organizations monitor and optimize their PKI setup.

How much does PKI software cost?

The cost of PKI software varies widely depending on the features, scale, and vendor. Pricing models differ as well, with some vendors offering a flat fee for unlimited usage, while others charge on a per-certificate or per-user basis.

What are the pricing models for PKI software?

Common pricing models for PKI software include:

  • Per user or per certificate: Pricing depends on the number of users or certificates.
  • Flat rate: A single fee for unlimited usage.
  • Subscription: Annual or monthly subscription fees, sometimes based on tiers of service.

What is the typical range of pricing for PKI software?

Pricing for PKI software can start as low as $50 per month for smaller solutions and go up to several thousand dollars per year for enterprise-grade software. Some vendors provide custom pricing based on the specific needs of the organization.

Which is the cheapest PKI software?

FreeIPA is among the cheapest PKI solutions as it is open-source and free to use.

Which is the most expensive PKI software?

Tools like RSA Certificate Manager and Venafi, which cater to large enterprises with extensive needs, can be on the higher end of the pricing scale.

Are there any free PKI software options?

Yes, there are free options available, such as FreeIPA, Dogtag Certificate System, OpenSSL, and OpenCA PKI. These are typically open-source solutions that might require more technical expertise to set up and manage.

Are PKI software tools difficult to use?

The difficulty level can vary depending on the tool. Some PKI software has a steep learning curve due to its extensive features and capabilities. However, most modern PKI tools prioritize user experience, offering intuitive interfaces and comprehensive support to aid in user onboarding and ongoing use.

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If you still haven't found what you're looking for here, check out these tools closely related to PKI software that we've tested and evaluated.

Summary

This article has covered a variety of PKI software solutions, each with its own unique strengths and considerations. Whether you need a tool for a Windows-centric environment, a solution with comprehensive interoperability, or one that offers impressive automation capabilities, there's PKI software to fit your requirements.

Key Takeaways

  1. Understand your needs: The best PKI software for you depends on your specific needs. Are you looking for a tool that integrates seamlessly with your existing infrastructure? Do you require extensive protocol support or a solution with strong automation features? Understanding your own use case is the first step toward making an informed choice.
  2. Consider Usability: The complexity of PKI software varies widely, and it's crucial to choose a solution that matches your team's technical skills. Software with intuitive interfaces and robust support can make the process of managing your PKI much smoother.
  3. Pay attention to Pricing: The cost of PKI software can range from free, open-source solutions to premium, enterprise-grade options. Make sure to understand the pricing model (per user, flat rate, subscription) and consider the long-term value and return on investment when making your decision.

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Paulo Gardini Miguel
By Paulo Gardini Miguel

Paulo is the Director of Technology at the rapidly growing media tech company BWZ. Prior to that, he worked as a Software Engineering Manager and then Head Of Technology at Navegg, Latin America’s largest data marketplace, and as Full Stack Engineer at MapLink, which provides geolocation APIs as a service. Paulo draws insight from years of experience serving as an infrastructure architect, team leader, and product developer in rapidly scaling web environments. He’s driven to share his expertise with other technology leaders to help them build great teams, improve performance, optimize resources, and create foundations for scalability.