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 .


Wissen vertiefen mit der CAcert-App

Wie gut kennen Sie die freie Zertifizierungsstelle Testen Sie Ihr Wissen mit dieser LearningApp innert weniger Minuten: Grundwissen CAcert (öffnet in neuem Fenster) Was halten Sie von so aufbereiteten Informationen? Sollten Ihrer Meinung nach mehr Themen von CAcert in Apps aufbereitet werden? Wenn ja: welche? Bitte schreiben Sie Ihre Meinung unten ins Kommentarfeld! Die […]

CAcert présent en Allemagne avec Secure-U, au Froscon 2019

La conférence FrOSCon se déroulait les 10 et 11 août derniers, près de Cologne en Allemagne. Elle était hébergée par l’Université des Sciences Appliquées Bonn-Rhein-Sieg. CAcert y était présent au coté de Secure-u, son partenaire en Allemagne depuis des années. Cette conférence annuelle est l’occasion pour CAcert de rencontrer ses membres et utilisateurs, et plus […]

CAcert and secure-u at Froscon 2019

The open-source fair FrOSCon open its doors on August, 10th + 11st, 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. […]

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For CAcert Community Members

Have you passed the CAcert Assurer Challenge yet?

Você já leu nosso Contrato Público ?

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?
Se você pode, por favor doe.
Para doar 50 (Dólares AU) por ano, clique na imagem abaixo:r
or a one off donation for this button whatever you can afford to help

Se você mora na Austrália, pode doar também através de depósito bancário:rr

Dados Bancários, CAcert:

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

If you want to participate in, have a look here and here.
CAcert operations are sponsored by
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