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| e-docs > Tuxedo > Using Security in CORBA Applications > C++ Security Reference | 
| Using Security in CORBA Applications 
 | 
Tobj::PrincipalAuthenticator::build_auth_data
Synopsis
Creates authentication data and attributes for use by SecurityLevel2::PrincipalAuthenticator::authenticate.
OMG IDL Definition
void build_auth_data(
in string user_name,
in string client_name,
in string system_password,
in string user_password,
in UserAuthData user_data,
out Security::Opaque auth_data,
out Security::AttributeList privileges
);
Arguments
Note: If user_name, client_name, or system_password is NULL or empty, or exceeds 30 characters, the subsequent authenticate method invocation raises the CORBA::BAD_PARAM exception.
Note: The user_password and user_data parameters are mutually exclusive, depending on the requirements of the authentication service used in the configuration of the BEA Tuxedo domain. The BEA Tuxedo default authentication service expects a user password. A customized authentication service may require user data. If both user_password and user_data are specified, the subsequent authentication call raises the CORBA::BAD_PARAM exception.
Description
This method is a helper function that creates authentication data and attributes to be used by SecurityLevel2::PrincipalAuthenticator::authenticate.
Note: This method raises CORBA::BAD_INV_ORDER if it is called with an invalid SecurityCurrent object.
Return Values
None.
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