If the certificate profile specifies a username field, the
certificate that the user presents must contain a username in the
corresponding field. For example, if the certificate profile specifies
that the username field is
Subject
, the certificate
presented by the user must contain a value in the common-name field,
or else authentication fails. In addition, when the username field
is required, the value from the username field of the certificate
is automatically populated as the username when the user attempts
to enter credentials for authenticating to the authentication profile.
If you do not want force users to authenticate with a username from
the certificate, do not specify a username field in the certificate
profile.