Root certificates
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Microsoft Windows
Download all A-Trust root certificates for Microsoft applications
Download all A-Trust intermediate certificates for Microsoft applications
Then right click on the stored file and select "Install certificates". Follow the instructions until you reach the end of the installation sequence. A dialogue with the fingerprint and the name of the certificate will then appear for each self-signed root certificate not yet installed (see image).
Then you right click the file A-Trust-Stamm.p7b and select "Install certificates". On the second page in the following assistant, please select "Store all certificates in the following repository" and "Search..." (see image). Please select "Trusted root certification authorities" in the appearing window and confirm with "OK". Now follow the instructions until you reach the end of the installation sequence. A dialogue with the fingerprint and the name of the certificate will then appear for each self-signed root certificate not yet installed (see image further below).
In order to import the intermediate certificates, right click the file A-Trust-Zwischen.p7b and then select "Install certificates". Follow the instructions until you reach the end of the installation sequence.
The following A-Trust root certificates should be installed to ensure proper use of your A-Trust product:
Root certificates
Fingerprint
Serial number (HEX/DEC)
e619d25b 380b7b13 fda33e8a 58cd82d8 a88e0515
d4d1370f d1d9eaa4 6412008f f3e59e11 4bcf724a
ee34d36b dd37e1d5 70719989 f88640d0 904671a600E243 / 57923
01c854 / 116820
144ddd / 133065351a44c28 f313e3f9 cb5e7c0a 1e0e0dd2 843758ae
04cf0318 ba0b54dd 76e1de14 3445210b dd32e299
1baab153 920dd205 18d1395e 825ba3f6 1cc2c45800E242 / 57922
01c85e / 116830
144dc3 / 1330627679a4f81 fc705dde c419778d d2ebd875 f4c242c6
82096e6d 9b124832 1625323d 52858642 cb0b748e
cd787a3d 5cba8207 08284836 5e9acde9 683364d800E248 / 57928
01c857 / 116823
144de4 / 1330660d3c063f2 19ed073e 34ad5d75 0b327629 ffd59af2
4caee38931 d19ae73b31 aa75ca33 d621290fa75e016C1E / 93214
14b4f9 / 135704942efdde6 bff35ed0 bae6acdd 204c50ae 86c4f4fa
51c01567 bcb22968 ef5a297b 7ea84e19 5594e0e8
60bbdd4c 61973fa5 c1bbf30e fdb08c6b 47f06b9703E694 / 255636
041D14 / 269588
144df5 / 13306772e66c984 1181c08f b1dfabd4 ff8d5cc72b e08f02
0FCDB4/ 1035700
During installation, please always note the security advice and compare the data displayed with the data given here to ensure that you are installing the original A-Trust certificates!
As the A-Trust root certificates are signed by the Austrian Regulatory Authority for Broadcasting and Telecommunications (RTR), you can also download this certificate from our homepage for your convenience.
The certificates listed here are available for download in the .crt format (DER encoded), as is required for example by Internet Explorer.
In order for browsers such as Netscape Navigator, Mozilla or other (server) applications to be able to resolve the certificate chain, additional intermediate certificates must be installed.
You can find intermediate certificates for SSL in Firefox here
Root certificates SSL
Fingerprint
Serial number (HEX/DEC)
d09d81f2 21ccba02 bd1de4b6 3dc4a251 f7d66a61
0FCE03 / 1035779
32651a59 b4d53e38 633ead4a b34ffa76 85e522e8
0FD2EB/ 1036843
Intermediate certificates in .crt format can be found here:
Install intermediate certificates
You can find all certificates in .pem format here:
Root certificates in .pem format can be found here:
Intermediate certificates in .pem format can be found here:
Root certificates test products
Fingerprint
Serial number (HEX/DEC)
a8 c9 30 00 65 3f af 7d 00 25 d3 d8 ee e6 bb dc 64 d9 8f 25
16120F / 1446415
6d d6 20 45 39 e9 34 bc 30 28 02 d0 e8 ea 40 bb 1b 70 07 e5
1725FA / 1517050
dc 57 47 ac af a8 99 d5 c8 8f 40 a2 d3 4c b1 f4 fc 2f c0 96
165FA5 / 1466277
Hardly in use anymore, but for the sake of completeness: