This object provides the issuer name from the X.509
certificate. The issuer name is formatted as a character string
matching the output of a ssh-certview command-line application,
except that the application sending the notification may limit
the string length. The issuer name and the serial number
identify a unique certificate.
Example: C=US, O=Cisco, OU=MITG, CN=Lnx-Insta-RootCA-1