On the Internet, data is usually transmitted unencrypted and can therefore
be read or intercepted by third parties, provided they have a certain
amount of technical know-how. This is not critical as long as no sensitive
data is affected. For the transmission of confidential data, for example
Internet banking and web mail access, an
SSL certificate is used to
establish an encrypted connection between the browser (client) and the
server. The data exchanged between browser and server is then encrypted
before it is sent. In addition, it is verified whether the data actually
reaches the server for which the certificate was issued.
Knipp offers its customers solely
SSL certificates with
secure 128 bit-encryption issued by the American
CA Comodo Group, Inc.
Key features of the certificates are their high compatibility with common
browsers (more than 99% browser coverage) and the modern way of
authenticating the certificate owner. The certificates are compliant with
the international standard X.509 v3.
There are SSL certificates
valid for one, two or three years as well as so-called wildcard
certificates. Normally a certificate is issued for a complete domain name,
i. e. including all characters of the third, second and top level domain
(e. g. www.knipp.de). In contrast to this, with a wildcard certificate
the third level domain (subdomain) can vary (e. g. .customer1.knipp.de,
.customer2.knipp.de and so on).
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