client_cert
Description:
Contains the client certificate if used by the EAP method specified in the eap property.
Certificate data is specified using a "scheme"; two are currently supported: blob and path. When using the blob scheme (which is backwards compatible with NM 0.7.x) this property should be set to the certificate's DER encoded data. When using the path scheme, this property should be set to the full UTF-8 encoded path of the certificate, prefixed with the string "file://" and ending with a terminating NUL byte.
Setting this property directly is discouraged; use the set_client_cert function instead.