struct client_cert;| Field | Type | Description | 
|---|---|---|
subject | 
const char * | 
The subject of the certificate | 
issuer | 
const char * | 
The issuer of the certificate | 
serial | 
const char * | 
The serial number of the certificate | 
finger | 
const char * | 
The fingerprint of the certificate | 
The structure client_cert is used as a sub-structure in the mg_request_info structure to store information of an optional client supplied certificate.