Best Public Key Infrastructure (PKI) Software for Mac of 2026

Compare the Top Public Key Infrastructure (PKI) Software for Mac as of June 2026

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What is Public Key Infrastructure (PKI) Software for Mac?

Public Key Infrastructure (PKI) software provides a framework for secure communications, managing digital certificates and encryption keys for data protection and identity verification. It enables organizations to authenticate users, devices, and applications, ensuring that only authorized entities can access sensitive information. PKI software supports encryption, enabling secure data exchange over networks by encrypting data with a public key that only a corresponding private key can decrypt. It also facilitates digital signatures, providing non-repudiation and ensuring data integrity by verifying that the data has not been altered. Overall, PKI software is essential for establishing trust in digital communications, especially in environments requiring high-security standards, such as government and financial institutions. Compare and read user reviews of the best Public Key Infrastructure (PKI) software for Mac currently available using the table below. This list is updated regularly.

1

signer.digital

Chartered Information Systems

signer.digital is the range of solutions which offer its users innovative ways to sign the documents and files and eInvoices, through it rage of procuts like, Bridge Application, REST APIs, Web Server and Web Libraries, DLLs and Free signer.digital Browser Extension. The signer.digital Bridge application can be setup in minutes for Digitally Signing with any of the existing ERP or application without writing a line of code, while the web server and libraries can be configured with any application, signer.ditial supports cross-platform applications through REST APIs. With signer.digital Browser Extension we offer seamless PKI operations through all the modern Browsers like Chrome, Edge and Firefox on all 3 OS platforms. Users can perform PKI Operations like Signing, Encryption, Verification, Authentication, Download of Digital Certificate Etc.

Starting Price: $1

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2

iCrypto

iCrypto

Designed to be used with our entire suite of iCrypto cloud-based services, the iCrypto SDK can integrate into existing Enterprise Apps or when deployed as iCrypto App be used as a standalone one-step password-less verification solution. By employing the latest cryptography technologies in combination with device-level security and management, the iCrypto SDK is the ultimate software token that can be used as a biometric ID on the go in a wide variety of industries. iCrypto SDK provides authenticator PKI signatures, a range of cryptographic protocols such as TOTP/HOTP/OCRA/MTP, push-based authentication, on-device as well as network-based biometrics such as fingerprint, iris scan, face/voice/eyeball recognition, third-party authorization, secure storage, context collection and host of security features.

Starting Price: Free

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3

SigningHub

Ascertia

Significant cost savings can be made when paper-based processes are moved on-line. For some documents it is vital to ensure traceability, accountability and audit with clear legal weight, data integrity and individual signed approval together with easy to access workflow process evidence. SigningHub enables quick, efficient on-line approval of any business document, agreement, report, request or package. SigningHub supports basic e-Signatures, Advanced e-Signatures and EU Qualified Signatures. The best way to prove a document is unchanged from the time of signing is to use cryptographic digital signatures. Organisations need to show that their internal controls are effective and compliant with local legislation and regulations. Ascertia has offered world-class PKI products for years. SigningHub brings together all of this capability and knowledge to provide the most secure way to sign documents.

Starting Price: $12.10/month/user

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4

4identity

Bit4id

4identity is the technological solution developed by Bit4id that empowers web applications with Digital Signature and Authentication processes. 4identity does not use Java Applets or any other third party add-on. It is simple, its is compatible with any web browser and works under the most used operating systems. The “integration-less” Engine to add Digital Signature and Strong Authentication to web applications through a simple API. 4identity means usability, providing a “1-click signing” user experience. Bit4id has extensive knowledge and experience in the development of software and tools for security and digital identity management based on Public Key Infrastructure (PKI). Providing solutions for managing more than 10 million digital identities, and processing more than 50 million digital signatures a year, Bit4id is a company leading in innovation for the PKI and digital identity market in Europe and Latin America.

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5

KeyTalk

KeyTalk

KeyTalk is independent of Certificate Authorities and linked to a large number of public CAs both GMO GlobalSign and Digicert QuoVadis. Switching between CAs is simple and easy, even when thousands of certificates and end-points are involved. A vendor lock-in is therefore no longer the case. KeyTalk contains an internal CA for the generation of private certificates and keys. Did you use previously expensive public certificates for internal purposes? Or did you run into the limited functionality of Microsoft CS and other private CAs? Then, you will like our internal CA, private PKI certificate issuance. KeyTalk keeps track of the lifecycle of your certificates in a fully automated way. This way, you always have a complete and up to date overview of all your certificates, including the certificate name, SAN and validity. Also, things like used crypto keys and algorithms of internal and external certificates can be included.

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6

Snorkel-BX

Odyssey Technologies

Snorkel-BX is a versatile transaction security server that enables secure communication and trust between business applications. B2B applications form the backbone of e-commerce and are often the target for hackers. Securing business applications from hackers is often complicated due to requiring painful integration and constant maintenance, not to mention a dedicated team with esoteric PKI knowledge. The complexity of securing B2B applications stems from the fact that the transacting entities are often built on diverse platforms, have differing feature sets, and possess varying levels of security. To keep up with changes in business needs, technology, and threat environment, the applications also need constant changes and upgrades which can further complicate the task of securing business applications.

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