Best Public Key Infrastructure (PKI) Software for Mac of 2025

Signer.digital is a range of solutions that offer innovative ways for users to sign documents and files. It rages of options like Bridge Application, REST APIs Web Server and Web Libraries, DLLs, and Free Signer.digital Extension. Signer.digital Bridge can be set up in minutes to digitally sign with any existing ERP or application. The web server and libraries are compatible with any signer.ditial application via REST APIs. Signer.digital Browser Extension allows seamless PKI operations across all modern browsers, including Chrome, Edge, and Firefox on all OS platforms. Users can perform PKI operations like signing, encryption, verification, authentication, and downloading of digital certificates etc.

The iCrypto SDK is meticulously crafted to work seamlessly with the complete range of iCrypto's cloud services, allowing for integration into current Enterprise Applications or functioning independently as a password-less verification solution through the iCrypto App. Utilizing cutting-edge cryptographic technologies alongside robust device-level security and management, the iCrypto SDK stands out as a premier software token capable of serving as a biometric identification method across diverse sectors. It offers authenticator PKI signatures and supports an array of cryptographic protocols, including TOTP, HOTP, OCRA, and MTP, as well as push-based authentication methods. Additionally, the SDK encompasses both on-device and network-based biometric capabilities such as fingerprint scanning, iris recognition, and voice or face identification, along with features for third-party authorization, secure data storage, context collection, and numerous other security enhancements. This comprehensive approach ensures that organizations can maintain high levels of security while providing convenient access solutions for users.

Transitioning paper-based processes to digital formats can lead to considerable reductions in costs. It is essential for certain documents to maintain traceability, accountability, and audit trails, ensuring they carry legal significance, data integrity, and individual signed consent, while also providing accessible evidence of workflow processes. SigningHub facilitates rapid and efficient online approval for a variety of business documents, including agreements, reports, requests, and packages. This platform accommodates basic e-Signatures, Advanced e-Signatures, and EU Qualified Signatures. To guarantee that a document remains unchanged from the moment it is signed, employing cryptographic digital signatures is the optimal solution. Organizations must demonstrate that their internal controls are robust and comply with local laws and regulations. For many years, Ascertia has been a trusted provider of top-tier PKI products. By integrating this expertise, SigningHub offers a comprehensive and secure solution for document signing, ensuring organizations can meet both security and compliance needs effectively. Ultimately, this digital transformation not only enhances efficiency but also strengthens trust in the documentation process.

4identity, created by Bit4id, is an innovative technological solution designed to enhance web applications with Digital Signature and Authentication capabilities. This platform eliminates the need for Java Applets or other third-party plugins, ensuring a streamlined experience that is compatible with any web browser and operates seamlessly across the most popular operating systems. With its “integration-less” Engine, developers can easily incorporate Digital Signature and Strong Authentication into their web applications through a straightforward API. The usability of 4identity is highlighted by its “1-click signing” feature, which simplifies the signing process for users. Bit4id boasts a wealth of expertise in crafting software and tools focused on security and digital identity management, leveraging the power of Public Key Infrastructure (PKI). The company manages over 10 million digital identities and processes upwards of 50 million digital signatures annually, establishing itself as a frontrunner in the PKI and digital identity sector in both Europe and Latin America. With its commitment to innovation and user-friendly solutions, Bit4id continues to shape the future of digital identity management.

KeyTalk operates independently from Certificate Authorities while being connected to numerous public CAs, including GMO GlobalSign and Digicert QuoVadis. Transitioning between different CAs is straightforward and efficient, even when managing thousands of certificates and endpoints, eliminating concerns about vendor lock-in. Additionally, KeyTalk features an integrated CA for generating private certificates and keys. Have you found yourself using costly public certificates for internal applications or experiencing the limitations of Microsoft CS and other private CAs? If so, you'll appreciate the benefits of our internal CA and private PKI certificate issuance. KeyTalk automates the management of your certificates throughout their lifecycle, ensuring that you have a comprehensive and current view of all your certificates, which includes details such as certificate names, SAN, and validity periods. Furthermore, it can provide information about the cryptographic keys and algorithms utilized for both internal and external certificates, enhancing your overall security management. With these capabilities, KeyTalk streamlines your entire certificate management process.

Snorkel-BX serves as a multifaceted transaction security server that facilitates secure interactions and fosters trust among various business applications. Given that B2B applications are integral to e-commerce, they frequently attract the attention of cybercriminals. The challenge of safeguarding these applications from potential breaches is often exacerbated by the need for complex integrations and ongoing upkeep, not to mention the requirement for a specialized team well-versed in intricate PKI systems. The difficulty in securing B2B applications arises from the fact that the entities involved usually operate on different platforms, exhibit distinct functionalities, and have varying degrees of security measures in place. Additionally, as business demands, technological advancements, and the threat landscape evolve, these applications necessitate continuous updates and modifications, further complicating the security landscape for business applications. This ongoing need for adaptation highlights the importance of a robust security solution that can streamline the protection process.