TeleSec_GlobalRoot_Class_2.cer: CN=T-TeleSec GlobalRoot Class 2,OU=T-Systems Trust Center,O=T-Systems Enterprise Services GmbH,C=DE (Root Certificate, Expiring 2033-10-01) detail info and audit record

 

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CA Certificate Information and Audit Record

This certificate is root certificate used for the issuance of other certificates.

Download certificate through curl:

curl -sSL "http://pki0336.telesec.de/crt/TeleSec_GlobalRoot_Class_2.cer" --output cert.crt

Download certificate through wget:

wget -q "http://pki0336.telesec.de/crt/TeleSec_GlobalRoot_Class_2.cer" --output-document=cert.crt

CA Certificate Detail Information

Use openssl x509 to decode DER certificate to get detail information:

openssl x509 -in cert.crt -inform der -text -noout

Use openssl x509 to decode PEM certificate to get detail information:

openssl x509 -in cert.crt -inform pem -text -noout

Decoded detail certificate information:

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number: 1 (0x1)
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=DE, O=T-Systems Enterprise Services GmbH, OU=T-Systems Trust Center, CN=T-TeleSec GlobalRoot Class 2
        Validity
            Not Before: Oct  1 10:40:14 2008 GMT
            Not After : Oct  1 23:59:59 2033 GMT
        Subject: C=DE, O=T-Systems Enterprise Services GmbH, OU=T-Systems Trust Center, CN=T-TeleSec GlobalRoot Class 2
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                RSA Public-Key: (2048 bit)
                Modulus:
                    00:aa:5f:da:1b:5f:e8:73:91:e5:da:5c:f4:a2:e6:
                    47:e5:f3:68:55:60:05:1d:02:a4:b3:9b:59:f3:1e:
                    8a:af:34:ad:fc:0d:c2:d9:48:19:ee:69:8f:c9:20:
                    fc:21:aa:07:19:ed:b0:5c:ac:65:c7:5f:ed:02:7c:
                    7b:7c:2d:1b:d6:ba:b9:80:c2:18:82:16:84:fa:66:
                    b0:08:c6:54:23:81:e4:cd:b9:49:3f:f6:4f:6e:37:
                    48:28:38:0f:c5:be:e7:68:70:fd:39:97:4d:d2:c7:
                    98:91:50:aa:c4:44:b3:23:7d:39:47:e9:52:62:d6:
                    12:93:5e:b7:31:96:42:05:fb:76:a7:1e:a3:f5:c2:
                    fc:e9:7a:c5:6c:a9:71:4f:ea:cb:78:bc:60:af:c7:
                    de:f4:d9:cb:be:7e:33:a5:6e:94:83:f0:34:fa:21:
                    ab:ea:8e:72:a0:3f:a4:de:30:5b:ef:86:4d:6a:95:
                    5b:43:44:a8:10:15:1c:e5:01:57:c5:98:f1:e6:06:
                    28:91:aa:20:c5:b7:53:26:51:43:b2:0b:11:95:58:
                    e1:c0:0f:76:d9:c0:8d:7c:81:f3:72:70:9e:6f:fe:
                    1a:8e:d9:5f:35:c6:b2:6f:34:7c:be:48:4f:e2:5a:
                    39:d7:d8:9d:78:9e:9f:86:3e:03:5e:19:8b:44:a2:
                    d5:c7
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: critical
                CA:TRUE
            X509v3 Key Usage: critical
                Certificate Sign, CRL Sign
            X509v3 Subject Key Identifier: 
                BF:59:20:36:00:79:A0:A0:22:6B:8C:D5:F2:61:D2:B8:2C:CB:82:4A
    Signature Algorithm: sha256WithRSAEncryption
         31:03:a2:61:0b:1f:74:e8:72:36:c6:6d:f9:4d:9e:fa:22:a8:
         e1:81:56:cf:cd:bb:9f:ea:ab:91:19:38:af:aa:7c:15:4d:f3:
         b6:a3:8d:a5:f4:8e:f6:44:a9:a7:e8:21:95:ad:3e:00:62:16:
         88:f0:02:ba:fc:61:23:e6:33:9b:30:7a:6b:36:62:7b:ad:04:
         23:84:58:65:e2:db:2b:8a:e7:25:53:37:62:53:5f:bc:da:01:
         62:29:a2:a6:27:71:e6:3a:22:7e:c1:6f:1d:95:70:20:4a:07:
         34:df:ea:ff:15:80:e5:ba:d7:7a:d8:5b:75:7c:05:7a:29:47:
         7e:40:a8:31:13:77:cd:40:3b:b4:51:47:7a:2e:11:e3:47:11:
         de:9d:66:d0:8b:d5:54:66:fa:83:55:ea:7c:c2:29:89:1b:e9:
         6f:b3:ce:e2:05:84:c9:2f:3e:78:85:62:6e:c9:5f:c1:78:63:
         74:58:c0:48:18:0c:99:39:eb:a4:cc:1a:b5:79:5a:8d:15:9c:
         d8:14:0d:f6:7a:07:57:c7:22:83:05:2d:3c:9b:25:26:3d:18:
         b3:a9:43:7c:c8:c8:ab:64:8f:0e:a3:bf:9c:1b:9d:30:db:da:
         d0:19:2e:aa:3c:f1:fb:33:80:76:e4:cd:ad:19:4f:05:27:8e:
         13:a1:6e:c2

CA Certificate in PEM Format

Use openssl x509 to convert certificate from DER format to PEM format:

openssl x509 -in cert.crt -inform der

Converted PEM format certificate:

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

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Page version: e13a7e3f2 2023-05-06