Janu
ary 201
9
530 Legrand PDU User Guide
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Certificate chain
0 s:/C=US/ST=California/L=Mountain View/O=Google Inc/CN=smtp.gmail.com
i:/C=US/O=Google Inc/CN=Google Internet Authority G2
-----BEGIN CERTIFICATE-----
MIIEdjCCA16gAwIBAgIIbzO9vIL2OXcwDQYJKoZIhvcNAQELBQAwSTELMAkGA1UE
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YHKKJ6dLpOOojn2WFLcQkL2mRoWQi6pYTzPyXB4D
-----END CERTIFICATE-----
1 s:/C=US/O=Google Inc/CN=Google Internet Authority G2
i:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
-----BEGIN CERTIFICATE-----
MIIEKDCCAxCgAwIBAgIQAlmnd+8Fe2Yn3zANBgkqhkiG9w0BAQsFADBC
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MqO5tzHpCvX2HzLc
-----END CERTIFICATE-----
2 s:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
i:/C=US/O=Equifax/OU=Equifax Secure Certificate Authority
-----BEGIN CERTIFICATE-----
MIIDfTCCAuagAwIBAgIDErvmMA0GCSqGSIb3DQEBBQUAME4xCzAJBgNVBAYTAlVT
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b8ravHNjkOR/ez4iyz0H7V84dJzY7mHyhD8S
-----END CERTIFICATE-----
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Server certificate
subject=/C=US/ST=California/L=Mountain View/O=Google
Inc/CN=smtp.gmail.com
issuer=/C=US/O=Google Inc/CN=Google Internet Authority G2
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3. Onscreen information under the title 'Certificate chain' indicates that there are three issuers and three
certificates on this server.
Each line beginning with the letter "i" indicates an issuer. They are:
Google Internet Authority G2
GeoTrust Global CA
Equifax Secure Certificate Authority
Each certificate's content is located between the line of "BEGIN CERTIFICATE" and the line of "END
CERTIFICATE".
The topmost certificate is the server certificate.
4. The section titled "Server certificate" indicates that the issuer (CA)
Google Internet Authority G2
issues
the server certificate.
5. As the server has the server certificate and two intermediate certificates, we conclude that this server
sends a partial certificate chain to the receiver.
6. Check whether the issuer "Equifax Secure Certificate Authority" is the root CA.