What is Public Key Infrastructure (PKI)?

Definition: A Public Key Infrastructure (PKI) is a combination of policies, procedures and technologies to issue, maintain and revoke digital certificates in public key encryption.


Public Key Infrastructure explained

A PKI infrastructure issues and manages digital, cryptographically secure credentials. This enables electronic transactions to take place by proving the integrity of the transaction and increasing trust. PKI is a core component of data confidentiality, information integrity, authentication and data access control.

A digital certificate is an electronic data structure that binds an entity to its public key. This could be a person, a computer program, a web server, an organization, devices and all internet-connected ‘things’ (IoT). They are used for identity verification and secure communications, using public key cryptography and digital signatures. The purpose of a PKI is essential in building a trusted and secure business environment by being able to authenticate and exchange data between various servers, users, services and devices.

Certificate Authorities provide the foundation for the security of PKI and the services that it supports.



Blog posts

Blog posts

Contact us

We look forward to answering your questions.

How can we help you?

Talk to one of our specialists and find out how Utimaco can support you today.
You have selected two different types of downloads, so you need to submit different forms which you can select via the two tabs.

Your download request(s):

    By submitting below form you will receive links for your selected downloads.

    Your download request(s):

      For this type of documents, your e-mail address needs to be verified. You will receive the links for your selected downloads via e-mail after submitting below form.

      About Utimaco's Downloads

      Visit our Downloads section and select from resources such as brochures, data sheets, white papers and much more. You can view and save almost all of them directly (by clicking the download button).

      For some documents, your e-mail address needs to be verified. The button contains an e-mail icon.

      Download via e-mail


      A click on such a button opens an online form which we kindly ask you to fill and submit. You can collect several downloads of this type and receive the links via e-mail by simply submitting one form for all of them. Your current collection is empty.