struct mg_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.