test-root-ca-2048.cer: CN=TEST Root CA 2048,O=Cisco Systems (Root Certificate, Expiring 2034-02-19) 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 "https://www.cisco.com/security/pki/certs/test-root-ca-2048.cer" --output cert.crt

Download certificate through wget:

wget -q "https://www.cisco.com/security/pki/certs/test-root-ca-2048.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:
            53:ff:d8:b1:ba:1c:fb:9b:42:82:5d:0a:85:a8:40:cb
    Signature Algorithm: sha1WithRSAEncryption
        Issuer: O=Cisco Systems, CN=TEST Root CA 2048
        Validity
            Not Before: Feb 19 21:01:38 2004 GMT
            Not After : Feb 19 21:09:53 2034 GMT
        Subject: O=Cisco Systems, CN=TEST Root CA 2048
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                RSA Public-Key: (2048 bit)
                Modulus:
                    00:c2:bd:51:ae:53:94:ee:23:eb:4a:81:a3:1c:88:
                    6e:2b:1b:96:75:d5:fa:17:37:95:cc:45:96:10:fc:
                    72:4e:d8:3c:30:72:03:b2:ce:87:e4:2c:ac:dd:41:
                    c2:4e:1f:f6:f8:91:29:79:b7:77:76:cc:c9:5d:18:
                    7a:67:2e:d0:7b:02:b8:e6:78:a2:b6:bc:d2:bd:26:
                    da:7f:b0:df:e7:c4:d6:af:18:81:ed:3d:f3:ff:ba:
                    f6:14:c8:04:0b:2c:bb:ec:4e:6f:5b:5b:54:ae:e7:
                    01:0d:bd:fd:31:d2:8d:5c:50:68:e8:aa:9f:53:76:
                    f7:54:28:46:b4:49:a3:9b:98:32:a8:5b:26:9f:ea:
                    80:ab:3f:2c:6a:ef:16:4a:3a:18:9c:ae:98:84:29:
                    c9:be:8d:2f:4c:63:ee:26:aa:61:cb:c0:ce:78:76:
                    f7:1d:18:d5:1f:b5:94:ba:00:7a:31:ea:1e:f0:49:
                    8c:29:09:33:fc:ef:da:ea:8f:bd:13:f8:cb:10:46:
                    3d:2d:18:b8:6a:be:fc:a6:25:13:f5:ef:5f:74:c5:
                    33:6b:d8:84:ca:02:46:97:46:fd:0e:b9:e3:b4:36:
                    cf:08:2d:48:2f:cf:32:c0:d1:14:48:c9:b7:d8:fa:
                    98:8a:8a:ca:c7:ea:fc:74:6e:e2:0a:d8:45:c7:cb:
                    60:bb
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Key Usage: 
                Digital Signature, Certificate Sign, CRL Sign
            X509v3 Basic Constraints: critical
                CA:TRUE
            X509v3 Subject Key Identifier: 
                CA:1C:01:A4:F7:5F:A6:C2:18:1C:BD:82:16:09:86:FB:1B:FA:BA:7A
            1.3.6.1.4.1.311.21.1: 
                ...
    Signature Algorithm: sha1WithRSAEncryption
         b3:8c:79:bb:65:7b:18:cc:b4:a6:b2:83:47:45:be:18:e6:de:
         4c:8c:1a:26:6d:da:63:dc:42:0c:d5:df:46:35:65:5b:65:67:
         5a:e3:0b:96:67:1b:53:fa:9e:74:d0:de:4c:fe:93:35:e6:23:
         73:ec:ee:2a:07:47:37:60:e1:07:8f:55:7f:88:c9:81:d9:85:
         17:0d:98:3b:a0:a7:90:4b:36:a3:0c:2f:0a:c1:ce:3a:fc:22:
         99:35:14:58:73:6b:5f:f7:84:90:7d:ed:2b:0d:f4:4a:9c:b8:
         7d:3c:12:dd:42:57:dd:ff:47:3d:96:e5:ec:db:8c:7e:f6:be:
         d5:69:23:3c:11:3a:c1:35:3f:17:9d:f4:b3:10:16:fe:f6:e1:
         73:cd:94:ea:8f:f5:e0:dd:08:7c:b7:d1:46:dd:56:5d:71:e0:
         ff:4f:fb:1f:69:2d:3f:08:8f:18:af:c6:1a:50:f8:cf:48:94:
         38:da:46:b4:cc:e7:33:94:d5:78:02:fa:b2:a2:17:dd:d9:59:
         26:9b:8a:47:f2:6a:52:ce:7a:74:05:b7:80:0a:7c:fa:27:48:
         d7:fc:63:7a:55:8b:12:a8:bb:58:d2:83:2b:7d:a3:9e:3e:af:
         97:11:13:6e:6e:74:c6:7b:e4:62:f3:ca:32:50:84:1a:6b:8f:
         bf:9d:08:6c

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-----

Decode PEM Certificate online

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Page version: e13a7e3f2 2023-05-06