Certum (Universal Certification Center) is a polish brand of Unizeto Technologies (currently Asseco), one of the oldest IT companies in Poland. Certum is the largest polish provider of SSL certificates and digital signatures. The established position on the market as well as the long-term trust of customers allows Certum to offer services at the highest level. Certum offers SSL certificates with DV, OV and EV validation. Certum SSL certificates are also perfect solution to protect of many domains (multi-domain option) and subdomains (wildcard option), as well as in the area of digital signing and encryption of e-mails for both private persons and companies. Certum is a recognized supplier of certificates, especially in the public sector.