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 .

آخر الأخبار

CAcert and secure-u on Froscon 2018

FrOSCon open its doors on August, 25th + 26st, and of course, CAcert is present! On the annual FrOSCon event CAcert is present, willing to assure members and to have nice talks to the public. We are very pleased to take part in an event targeted on free software and open source. FrOSCon takes place […]

Welcome to Sydney

We wish a warm welcome to all our members to Sydney, New South Wales to our Annual General Meeting. It will be on Sat, 20 Oct 2018 07:00 @Sydney. For booking your journey, please consider our partner, booking.com You can attend the Meeting from around the globe on IRC. Please, save the date: Fri, 19 […]

Long data protection shadows around the globe

The new Data Protection Regulation has entered into force in the European Union today. You can find our data protection declaration on data handling here. In der Europäischen Union ist heute die neue Datenschutzverordnung in Kraft getreten. Unsere Datenschutzerklärung zum Umgang mit den Daten finden Sie hier. Le nouveau règlement sur la protection des données […]

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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


If you want to participate in CAcert.org, have a look here and here.
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