Certification authority

This certification authority is established in the Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic. Its purpose is to provide cheap certificates for use with WWW servers by the Czech non-profit organizations.

The certificate of this certification authority is not included in the WWW browsers. If you access a web site using a certificate issued by us, you will be warned that the certification authority is not recognized. You should make your own decision whether you will trust such a certificate.

The certificate has nothing to do with quality of encryption. Even with self signed certificate the communication cannot be intercepted by third persons. The role of certification authority is to certify identity. In other words, if we issue a certificate for www.some.domain, we certify that its administrator is an owner of domain some.domain (or is employed in an organization owning that domain). The web sites with valid certificates from well established certification authorities thus cannot pretend to be something else.

Some browsers and/or operating systems allow to install additional certificates of certification authorities. We distribute only the certificate of the "new certification authority" (see below). Netscape and Mozilla will guide you directly through installation of a new certificate, MS Internet Explorer displays the download dialog. Select "Open" which will give you certificate installation wizard. Press "Install certificate". This certification authority provides certificates for web sites only, do not select other trust options in the certificate.

Now you can install the CA certificate.

If you are in doubt whether a particular certificate issued by us is valid or forged, you can look it up in our database.

For technical and administrative reasons we had to change the certificate of the certification authority. The old certificates are still valid but new certificates will be issued by the new authority only. The differences in identification is only minor:

Old certification authority Current certification authority
ca.icpf.cas.cz
wagner@mbox.cesnet.cz
Certification Authority
Institute of Chemical Process Fundamentals
Prague, Czech Republic, cz
ca.icpf.cas.cz
wagner@mbox.cesnet.cz
Certification Authority
Institute of Chemical Process Fundamentals, Academy of Sciences
Prague, Czech Republic, cz

Please notice that the email address is no longer valid either. The current address is written in the CA main page.

In order to make secure communication really secure, we always require the certification signing request to be accompanied by certificates stating that the person applying for the certificate is the owner of the domain.


Contact: Z. Wagner, wagner@icpf.cas.cz.