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

CAcert renewed root certificates

CAcert has finally upgraded the Root and Class 3 certificates from the old MD5 encoding to the modern SHA-256. Your browsers will like us again! The new certificates were installed in “the usual places” on April 10th. You may go to our web site home page, https://www.cacert.org, and over on the right-hand side, three lines […]

CAcert erneuert Stammzertifikate

CAcert hat endlich die Stamm- und Class 3-Zertifikate von der alten MD5-Kodierung auf die moderne SHA-256 aktualisiert. Ihre Browser werden uns wieder mögen! Die neuen Zertifikate wurden am 10. April an “den üblichen Orten” installiert. Sie können auf unsere Homepage https://www.cacert.org gehen, und auf der rechten Seite, drei Zeilen von oben, finden Sie “Root Certificates”. […]

CAcert a renouvelé ses certificats racine

CAcert a finalement mis à jour les certificats Root et Class 3 de l’ancien encodage MD5 vers le moderne SHA-256. Vos navigateurs nous apprécieront à nouveau ! Les nouveaux certificats ont été installés dans “les lieux habituels” le 10 avril. Vous pouvez vous rendre sur la page d’accueil de notre site Web, https://www.cacert.org, et sur […]

[ More News Items ]

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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