Are you new to CAcert? 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

Disabling SSL3 and 3DES support to improve security for CAcert’s users

CAcert intends to disable SSL3 and 3DES support for its main website by December 1, 2014. The main CAcert website is currently still supporting the SSL3 protocol for secure connections. However, in  it is shown that SSL3 is susceptible to certain cryptograhical attacks. While does support the recommended TLS_FALLBACK_SCSV option to protect […]

CAcert Assurances at the LISA Conference in Seattle, WA, USA, 11 November 2014

The 28th Large Installation System Administration conference (aka. Lisa 2014) will be meeting November 9-14 in Seattle, WA, USA. We have held a CAcert Birds-of-a-Feather (BoF) session at several previous LISA events. The CAcert Assurance BoF at LISA 14 will be Tuesday evening November 11th. This session is open to the public. Full details are […]

Assurance-Point auf dem Open-Source-Day 2014 am 22.10. in Hamburg

Der Hamburger Open-Source-Day 2014 ist in Hamburg im Zeitraum 10:00 Uhr – 14:00 Uhr geöffnet. Details sind unter [3] zu finden. Dieser Assurance-Point ist interessant für alle die ihren Status innerhalb der CAcert-Communitiy verbessern wollen. Dabei ist jeder, ob CAcert Assurer, CAcert Assuree/Member, CAcert Interessierte, Einsteiger oder Unentschlossener herzlich willkommen. Es gibt die Möglichkeit für […]

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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
  • BSB: 032073
  • Account No.: 180264

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