What is a Digital Certificate?

Definition: A digital certificate is a file or electronic password that proves the authenticity of a device, server, or user through the use of cryptography and public key infrastructure (PKI).

Digital Certificate explained

The secure electronic transfer of information is required for a wide range of network activities and digital certificates can be seen as ‘electronic passwords’ that facilitate the verification of identities between users during these transactions. Digital certificates need to be issued by a trusted third party known as a Certificate Authority (CA) - the ‘issuer’. The CA provides third-party validation and therefore adds an additional layer of trust and security. When the certificate is digitally signed by the CA, the certificate can be used to establish the identity and secure encryption of the ‘subject’, which can be individuals, businesses and electronic assets such as servers or devices.

A digital certificate, also known as a public key infrastructure (PKI) certificate or an identity document, is used to prove the validity of a public key. Without certificates, someone could send data encrypted with the private key and decrypted with the public key, but there would be no assurance as to where the data originated from. It is in this instance as to why a certificate is so important - digital certificates include the public key being certified, identifying information about the entity that owns the public key (‘subject’), metadata relating to the digital certificate and a digital signature of the public key the certificate issuer created.



Source: Utimaco


Another successful HSM training

Technical training on HSMCREAplus successfully delivered another online hands-on technical training on Utimaco hardware security module (HSM).

Read more ...

Protecting digital identities

Protecting Digital Identities, 14 September 2022, Vienna, AustriaWould you like to get the latest information on PKI & IoT, eSigning & eIDAS and PQC?Join us on 14 September 2022 in Vienna! 

Read more ...

CREAplus obtained the Excellent SME certificate

Excellent SMECREAplus received the Excellent SME certificate, issued by the Chamber of Commerce and Industry and credit rating agency Coface.


Read more ...

Protecting Digital Identities - Save the Date!

Excellent SMESave the date! Plan to attend our event "Protecting Digital Identities" on Wednesday, 14 September 2022, in Vienna, Austria. 

Read more ...

u.trust 360 v4.0 - Centralized Management and Monitoring Platform

u.trust 360 v4.0u.trust 360 v4.0 - the next generation of easy and convenient HSM administration is available now! 

Read more ...