Are you new to CAcert?

CAcert.org is a community-driven Certificate Authority that issues certificates to the public at large for free.

CAcert's goal is to promote awareness and education on computer security through the use of encryption, specifically by providing cryptographic certificates. These certificates can be used to digitally sign and encrypt email, authenticate and authorize users connecting to websites and secure data transmission over the internet. Any application that supports the Secure Socket Layer Protocol (SSL or TLS) can make use of certificates signed by CAcert, as can any application that uses X.509 certificates, e.g. for encryption or code signing and document signatures.

If you want to have free certificates issued to you, join the CAcert Community .

If you want to use certificates issued by CAcert, read the CAcert Root Distribution License .This license applies to using the CAcert root keys .

Latest News

Digital sovereignty is becoming a must. But this requires more than just control over one’s own data.

The world is facing new challenges in the age of AI, cloud computing and networking. Open source solutions are becoming particularly attractive. Those responsible for information technology in companies or public administrations are likely to have followed the geopolitical shifts of recent months with particular attention. The location of sensitive data and applications and who […]

CAcert zeigt an der FrOScon passwortlose Logins mit OpenIDConnect

In diesem Jahr zeigen wir unter anderem, wie CAcert-Client-Zertifikate den Weg zu passwortlosen Logins mit OpenIDConnect-faehiger Software z.B. bei WordPress ebnen oder mit PHP, Per oder (eventuell) Pyton in eigenen Projekten genutzt werden kann. Diese Funktion steht jedem verifizierten CAcert-Mitglied zur Verfügung. Wenn Sie mit den neuen Funktionen von CAcert OpenID Connect, die von unseren […]

Happy New Financial Year!

The financial year of your favourite CA, CAcert, is drawing to a close. As early as 30 June, the volunteer accountant will close the cash book and draw up the balance sheet. Even though there are still a few days to go before then, we can already make at least two observations. A good one […]

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For CAcert Community Members

Have you passed the CAcert Assurer Challenge yet?

Have you read the CAcert Community Agreement yet?

For general documentation and help, please visit the CAcert Wiki Documentation site .For specific policies, see the CAcert Approved Policies page.

Do you want to help CAcert?

We are facing an uphill battle to fund this service and could do with your help?
If you can, please donate.
AU$50 per year for this button
or a one off donation for this button whatever you can afford to help

If you are located in Australia, use bank transfer instead.

CAcert bank account details:

  • Account Name: CAcert Inc
  • SWIFT: WPACAU2S
  • BSB: 032073
  • Account No.: 180264


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