R1-ServerCA1B.cer: CN=Amazon,OU=Server CA 1B,O=Amazon,C=US (Intermediate Certificate, Expiring 2025-10-19) detail info and audit record

 

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CA Certificate Information and Audit Record

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

Download certificate through curl:

curl -sSL "https://www.amazontrust.com/repository/R1-ServerCA1B.cer" --output cert.crt

Download certificate through wget:

wget -q "https://www.amazontrust.com/repository/R1-ServerCA1B.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:
            06:7f:94:57:85:87:e8:ac:77:de:b2:53:32:5b:bc:99:8b:56:0d
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=US, O=Amazon, CN=Amazon Root CA 1
        Validity
            Not Before: Oct 22 00:00:00 2015 GMT
            Not After : Oct 19 00:00:00 2025 GMT
        Subject: C=US, O=Amazon, OU=Server CA 1B, CN=Amazon
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                RSA Public-Key: (2048 bit)
                Modulus:
                    00:c2:4e:16:67:dd:ce:bc:6a:c8:37:5a:ec:3a:30:
                    b0:1d:e6:d1:12:e8:12:28:48:cc:e8:29:c1:b9:6e:
                    53:d5:a3:eb:03:39:1a:cc:77:87:f6:01:b9:d9:70:
                    cc:cf:6b:8d:e3:e3:03:71:86:99:6d:cb:a6:94:2a:
                    4e:13:d6:a7:bd:04:ec:0a:16:3c:0a:eb:39:b1:c4:
                    b5:58:a3:b6:c7:56:25:ec:3e:52:7a:a8:e3:29:16:
                    07:b9:6e:50:cf:fb:5f:31:f8:1d:ba:03:4a:62:89:
                    03:ae:3e:47:f2:0f:27:91:e3:14:20:85:f8:fa:e9:
                    8a:35:f5:5f:9e:99:4d:e7:6b:37:ef:a4:50:3e:44:
                    ec:fa:5a:85:66:07:9c:7e:17:6a:55:f3:17:8a:35:
                    1e:ee:e9:ac:c3:75:4e:58:55:7d:53:6b:0a:6b:9b:
                    14:42:d7:e5:ac:01:89:b3:ea:a3:fe:cf:c0:2b:0c:
                    84:c2:d8:53:15:cb:67:f0:d0:88:ca:3a:d1:17:73:
                    f5:5f:9a:d4:c5:72:1e:7e:01:f1:98:30:63:2a:aa:
                    f2:7a:2d:c5:e2:02:1a:86:e5:32:3e:0e:bd:11:b4:
                    cf:3c:93:ef:17:50:10:9e:43:c2:06:2a:e0:0d:68:
                    be:d3:88:8b:4a:65:8c:4a:d4:c3:2e:4c:9b:55:f4:
                    86:e5
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: critical
                CA:TRUE, pathlen:0
            X509v3 Key Usage: critical
                Digital Signature, Certificate Sign, CRL Sign
            X509v3 Subject Key Identifier: 
                59:A4:66:06:52:A0:7B:95:92:3C:A3:94:07:27:96:74:5B:F9:3D:D0
            X509v3 Authority Key Identifier: 
                keyid:84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08

            Authority Information Access: 
                OCSP - URI:http://ocsp.rootca1.amazontrust.com
                CA Issuers - URI:http://crt.rootca1.amazontrust.com/rootca1.cer

            X509v3 CRL Distribution Points: 

                Full Name:
                  URI:http://crl.rootca1.amazontrust.com/rootca1.crl

            X509v3 Certificate Policies: 
                Policy: 2.23.140.1.2.1

    Signature Algorithm: sha256WithRSAEncryption
         85:92:be:35:bb:79:cf:a3:81:42:1c:e4:e3:63:73:53:39:52:
         35:e7:d1:ad:fd:ae:99:8a:ac:89:12:2f:bb:e7:6f:9a:d5:4e:
         72:ea:20:30:61:f9:97:b2:cd:a5:27:02:45:a8:ca:76:3e:98:
         4a:83:9e:b6:e6:45:e0:f2:43:f6:08:de:6d:e8:6e:db:31:07:
         13:f0:2f:31:0d:93:6d:61:37:7b:58:f0:fc:51:98:91:28:02:
         4f:05:76:b7:d3:f0:1b:c2:e6:5e:d0:66:85:11:0f:2e:81:c6:
         10:81:29:fe:20:60:48:f3:f2:f0:84:13:53:65:35:15:11:6b:
         82:51:40:55:57:5f:18:b5:b0:22:3e:ad:f2:5e:a3:01:e3:c3:
         b3:f9:cb:41:5a:e6:52:91:bb:e4:36:87:4f:2d:a9:a4:07:68:
         35:ba:94:72:cd:0e:ea:0e:7d:57:f2:79:fc:37:c5:7b:60:9e:
         b2:eb:c0:2d:90:77:0d:49:10:27:a5:38:ad:c4:12:a3:b4:a3:
         c8:48:b3:15:0b:1e:e2:e2:19:dc:c4:76:52:c8:bc:8a:41:78:
         70:d9:6d:97:b3:4a:8b:78:2d:5e:b4:0f:a3:4c:60:ca:e1:47:
         cb:78:2d:12:17:b1:52:8b:ca:39:2c:bd:b5:2f:c2:33:02:96:
         ab:da:94:7f

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