The name of the file storing the identity
certificate. It is a unix style '/' seperated string
representing the absolute path of the file in the
file system of the device. If there is no identity
certificate obtained as yet, the value of this object
will be a zero length string.
This object gets its non-zero length string value
after a successful 'certimport' or 'pkcs12import'
PKI support action triggered on the object cpkiAction.
This object gets set to zero length string when the
identity certificate is deleted through a successful
'certdelete' action triggered on the object
cpkiAction.