Microsoft Azure Key Vault: Best overall

Microsoft offers a very impressive encryption key management service in the form of Azure Key Vault, with its focus on security and automation.

SEE: 8 Best Identity and Access Management Solutions in 2024 (TechRepublic)

Azure Key Vault allows for importing and generating encryption keys, including those linked to hardware security modules, and to easily monitor and audit their use. These keys stay protected at all times, not even Microsoft itself can access them. As is the focus of a lot of Microsoft’s Azure line, there are plenty of options to simplify and automate Key Vault’s functions, potentially freeing up a lot of time.

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Why we chose Microsoft Azure Key Vault

We picked Azure Key Vault as our top choice for its high-level balance of security and ease-of-use. It provides an intuitive key management experience, offers automations capabilities and lets managers limit access to sensitive keys. On top of that, it’s designed to reduce key vault latency — which is a must for organizations that are starting to scale and may receive hundreds of requests a day.

Pricing

Azure Key Vault is offered on a pay-as-you-go basis, but Microsoft offers you $200 of credit to use in your first 30 days, and will continue to give you a free monthly allowance on over 55 of their services as long as you’re with them. This means it won’t cost you anything to try this enterprise-level encryption key management system, though long-term costs will vary depending on how much you use each service.

For its Vaults offerings, here’s a brief overview of pricing:

• Secret operations: $0.03/10,000 transactions (Standard).
• Certificate operations: $3 per renewal request, all other operations are at $0.03/10,000 transactions (Standard).
• Managed Azure Storage account key rotation: Free during preview; $1 per renewal.

Features

• Provides easy key management.
• Supports FIPS 140-2 Level 2 hardware security module encryption.
• Automates tasks for TLS/SSL certificates.
• Offers enhanced security and greater control over keys.
• Ensures that apps don’t have access to keys.

Pros

• Designed to reduce latency.
• Easy to use.

Cons

• No free version as with some competing encryption key management solutions.

GnuPG: Best for PGP encryption

GnuPG, or the GNU Privacy Guard, is a free and open-source command line tool that allows for encryption key management as well as easy encryption and signing of data, emails and other communication.

SEE: 6 Best Authenticator Apps for 2024 (TechRepublic)

Although it doesn’t carry as many features as some other key management and encryption packages, it will be more than sufficient for most and more than earns its spot on this list. As a  common inclusion on Linux distributions, it’s a very accessible option that is easy to use, provided you can get past the potential intimidation of operating from the command line. Being as widely used as it is and having been around for over 20 years, there are plenty of support options.

As well as easy integration with other common applications, GnuPG also works well with Windows through Gpg4win. This allows for quick and easy setup and additional features such as a context menu tool and a Microsoft Outlook plugin which allows you to easily use your keys for sending and receiving encrypted emails. Thanks to a recent update, GnuPG version two now has S/MIME functionality.

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Why we chose GnuPG

Gnu Privacy Guard made this list for its open source and free implementation of the OpenPGP standard. As one of the most widely used encryption standards, GnuPG’s OpenPGP service makes it accessible for businesses to encrypt and sign their data. It’s a great option for businesses with technical expertise, especially those who are well-versed in maximizing different integrations that suit their organization’s particular needs.

Pricing

Features

• Provides for auditing, analysis and compliance.
• Has network access control.
• Offers anti-malware, anti-spam and threat detection.
• Supports email encryption.
• Provides access control management and data loss prevention,
• Offers password and identity management.
• Includes firewall, network security and packet analyzers.
• Provides database activity monitoring.
• Offers device control.
• Provides for content filtering.
• Includes endpoint detection and response.
• Includes file encryption.
• Offers end-user awareness and training.
• Includes data recovery.
• Includes digital rights management.

Pro

• Free to use.
• The product has been around for a long time so lots of support options are available.
• There are a number of integrations, so you can use GnuPG on a number of devices and applications.

Cons

• Only supports PGP encryption.

Seahorse: Best for a user-friendly interface

Seahorse is another local encryption key management application that, like GnuPG, is often found on Linux distributions. However, Seahorse offers a larger range of features as well as a graphical user interface, which many will find more comfortable than working with the command line.

SEE: 5 Best Free Password Managers for 2024 (TechRepublic)

As well as allowing you to manage both PGP and SSH encryption keys, Seahorse can manage your other passwords and even allows the use of an image as a photo ID. The interface is easy to use and understand, making adding, removing or updating keys and passwords a quick and easy process, even for those who are not overly technical. The option to back up your keyring is also included, reducing the risk of accidentally losing access to your data.

Integration with other common Linux software including file managers, browsers and email clients combined with passphrase caching makes for a very smooth user experience, though this does mean that you need to take care not to leave your computer unlocked.

Best of all, it is available as a free and open-source product, so there are no upfront costs or subscription fees.

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Why we chose Seahorse

We selected Seahorse for its user-friendly user interface, which forgoes using the more intimidating command line tool for its implementation. We imagine this simple and beginner-centric encryption key manager to be a good entry-point for users and businesses that want to try out such a service. It’s especially viable for this use-case given that it’s a completely free application.

Pricing

Features

• Allows auto-saving passwords to a keyring.
• Lets users create and manage SSH keys.
• Has limited cross-platform syncing
• Provides password management
• Supports multiple keyrings, each protected by its own master password.
• Allows for generating and managing PGP keys.
• Allows publishing and retrieving encryption keys from key servers.
• Integrates with NetworkManager to store WEP passwords.
• Has a graphical user interface.

Pros

• Features an easy-to-use user interface.
• Manage SSH and PGP keys.
• Good range of features.

Cons

• Passwords in open computerized key cabinets are stored in your physical RAM only.

Google Cloud Key Management: Best for businesses with Google ecosystem

Google has long been one of the biggest names in tech and the Google Cloud Key Management service builds on the company’s history of offering reliable solutions that meet the needs of just about anyone.

SEE: 4 Best Free VPNs for 2024 (TechRepublic)

This is a centralized, cloud-based key management service that can truly take care of everything. It’s able to generate, store, rotate and destroy both symmetric and asymmetric keys for many different encryption systems, including AES256, RSA 4096, and EC P384. Google Cloud also includes the ability to work with external key managers and hardware-based encryption via HSM for ultimate security.

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Why we chose Google Cloud Key Management

Google’s Cloud Key Management service is great for businesses that are already heavily entrenched in the Google ecosystem. In particular, organizations that are utilizing Google Cloud Platform will feel right at home with Cloud Key Management. On its own, Cloud Key Management offers fast and secure key management. It offers both software and hardware-protected encryption keys and has extensive symmetric and asymmetric key support.

Pricing

Users should be aware that this is a subscription service with a fairly complex pricing system, with the monthly cost being determined by your usage of the various functions it offers.

Here’s a quick glimpse of Google pricing for Cloud Key Management:

• Active symmetric AES-256 and HMAC key versions: $0.06 per month
• Active asymmetric RSA 2048 key versions: $0.06 per month.
• Key operations Cryptographic: $0.03 per 10,000 operations.

These are just a few of Google’s service offerings, with other configurations available depending on your organization’s particular needs and requirements.

Features

• Compatible with encryption hardware.
• Allows creating, managing and deleting encryption keys.
• Provides an external key manager that allows granular control over data.

Pros

• Vast feature set for securing keys.
• Manage both symmetric and asymmetric keys on encryption technologies like AES 256 and RSA-4096.

Cons

• Complicated pricing structure.

HashiCorp Vault: Best for secrets management

HashiCorp Vault is an ideal encryption manager to use for secrets management – secrets being any digital asset an organization wants under tight control. It offers a plethora of features, such as identity-based access and more.

Seamless integration with other software and service providers including Google, Microsoft, and Amazon Web Services is another feature.

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Why we chose HashiCorp Vault

HashiCorp got its service on the list for businesses which specifically require a versatile way to manage secrets and other digital assets. HashiCorp Vault can handle dynamic and static secrets, supports Kubernetes and AWS integration, and includes identity-based security automation. Its dynamic secrets functionality is noteworthy, allowing businesses to generate on demand secrets for just-in-time or one-off use-cases.

Pricing

While HashiCorp Vault is a freemium service, you’ll need to subscribe if you want full access to their identity-based security services, including encryption keys. The exact price you’ll pay varies, with their standard service starting at $1.58 per hour.

Custom setups are also available if you have special security or compliance needs, with more information about what they can offer in this regard available from their sales team.

Features

• Provides secrets management.
• Supports identity-based access.
• Provides data encryption.
• Supports AWS/Kubernetes integration.

Pros

• Easy way to manage secret sprawl.
• Open-source and self-hosted.
• Can generate PKI certificates.
• Fast release cycle.

Cons

• Not so easy to use.
• No readily clear way to search for secret keys.