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Security Rule Set Simulator Example

You have a database that contains sensitive employee information and you want to create and test a masking rule that prevents non-privileged database users from viewing the sensitive data.

You create a database connection in the Management Console. The following image shows the database connection parameters:

Note the

DDM Database Name

and

DBA Username

values. You use the database connection parameters when you run the Security Rule Set Simulator.

You add the Dynamic Data Masking service for the database in the Management Console and create a connection rule. The connection rule directs requests to the database to a security rule set. The All Incoming Connections rule matcher creates a match for all connections to the database. The Use Rule Set rule action directs all connections to the rule set that you specify in the Rule Set Name parameter. The following image shows the connection rule parameters:

The connection rule uses the All Incoming Connections matcher, the Use Rule Set rule action, and the Stop if Applied processing action.

Note the

Rule Set Name

value. You use the value to name the security rule set.

You create a masking security rule that uses the column alias to truncate all values in the database. The Any rule matcher matches all requests that go through the rule. The mask rule action uses a masking function to mask the sensitive data. The following image shows the rule set and the masking rule parameters:

The masking rule uses the Any matcher and the Mask rule action.

In the Rule Editor, you highlight the masking rule in the rule tree and open the Security Rule Set Simulator.

In the Security Rule Set Simulator you enter the following information:

DDM Database Name: The database name that you used to create the database node in the Management Console.
DBA Username: The database user name that you used to connect to the database in the Management Console.
DBA Password: The password for the database user.
AUTH_USERNAME Symbol Value: The database user name that you want to use to test the masking rule. If you do not enter a database user name, the simulator uses the Dynamic Data Masking administrator user name and password that you used to connect to the database in the Management Console.
SQL Statement: The SQL request that you want to use to test the masking rule.

Click

Run

to run the simulator and test the rule. The following image shows the Security Rule Set Simulator parameters and the simulator log output:

The simulator displays the log output for the user that you defined for the AUTH_USERNAME symbol.

The log output shows that the simulator tested the rule as the user that you entered for the AUTH_USERNAME symbol.

The following text shows the complete simulator log output:

Replace Using MaskingRule
Original Statement:
SELECT * FROM HR.EMPLOYEES
Replaced by:
SELECT   substr("EMPLOYEES"."EMPLOYEE_ID",1,2) "EMPLOYEE_ID" , substr("EMPLOYEES"."FIRST_NAME",1,2) "FIRST_NAME" , substr("EMPLOYEES"."LAST_NAME",1,2) "LAST_NAME" , substr("EMPLOYEES"."EMAIL",1,2) "EMAIL" , substr("EMPLOYEES"."PHONE_NUMBER",1,2) "PHONE_NUMBER" , substr("EMPLOYEES"."HIRE_DATE",1,2) "HIRE_DATE" , substr("EMPLOYEES"."JOB_ID",1,2) "JOB_ID" , substr("EMPLOYEES"."SALARY",1,2) "SALARY" , substr("EMPLOYEES"."COMMISSION_PCT",1,2) "COMMISSION_PCT" , substr("EMPLOYEES"."MANAGER_ID",1,2) "MANAGER_ID" , substr("EMPLOYEES"."DEPARTMENT_ID",1,2) "DEPARTMENT_ID" 
FROM HR . EMPLOYEES
Done by ClientInfo:[User=null, Host=null, application=null] - DDMUser

-------------------------------------------------------------
Original statement:
SELECT * FROM HR.EMPLOYEES
Replaced by:
SELECT   substr("EMPLOYEES"."EMPLOYEE_ID",1,2) "EMPLOYEE_ID" , substr("EMPLOYEES"."FIRST_NAME",1,2) "FIRST_NAME" , substr("EMPLOYEES"."LAST_NAME",1,2) "LAST_NAME" , substr("EMPLOYEES"."EMAIL",1,2) "EMAIL" , substr("EMPLOYEES"."PHONE_NUMBER",1,2) "PHONE_NUMBER" , substr("EMPLOYEES"."HIRE_DATE",1,2) "HIRE_DATE" , substr("EMPLOYEES"."JOB_ID",1,2) "JOB_ID" , substr("EMPLOYEES"."SALARY",1,2) "SALARY" , substr("EMPLOYEES"."COMMISSION_PCT",1,2) "COMMISSION_PCT" , substr("EMPLOYEES"."MANAGER_ID",1,2) "MANAGER_ID" , substr("EMPLOYEES"."DEPARTMENT_ID",1,2) "DEPARTMENT_ID" 
FROM HR . EMPLOYEES

You select

Debug Mode

and run the simulator to view the detailed log output. The detailed log output shows additional connection and Dynamic Data Masking Server information. The following text shows the debug log output:

Database set to: OracleDatabase
FolderAction: trying: MaskingRule for: []
MaskingRule.match: matcher: AnyMatcher h: []
Applying rule: MaskingRule
MaskingAction.execute: SELECT * FROM HR.EMPLOYEES
OracleDatabase: Getting connection for: DDMAdministrator
OracleDatabase.buildURL: Finished being built URLjdbc:informatica:oracle://hr-server;ServiceName=Oracle11g
OracleDatabase: Is Setting schema: true
Try and impersonate using: user=DDMAdministrator and null catalog.
Starting to impersonate user: DDMAdministrator -- Null catalog
Adding for execution SQL statement: ALTER SESSION SET CURRENT_SCHEMA = DDMAdministrator
Here are the 1 return codes after executing the statement list:-
0: 
Statement returned with number of rows: 
0
Completed impersonation to user: DDMAdministrator
Completed successfully impersonating user: DDMAdministrator -- Null catalog
MaskingAction: Alias set is: ["EMPLOYEES"]
OracleDatabase: Impersonating 
OracleDatabase: Getting connection for admin user = DDMAdministrator
OracleDatabase: Getting connection for ddm admin user and password
OracleDatabaseUser = DDMAdministrator ; Password = GCMNFIENGEBPNCBI
OracleDatabaseAbout to obtain non-pooled connection.
OracleDatabase.buildURL: Finished being built URLjdbc:informatica:oracle://hr-server;ServiceName=Oracle11g
OracleDatabaseObtained connection successfully.
OracleDatabase: Using ddm admin user DDMAdministrator, testing if impersonating supported for: client user = DDMUser ;client catalog = null ;client path = null
OracleDatabase: Using ddm admin user DDMAdministrator, impersonating supported for: client user = DDMUser ;client catalog = null ;client path = null
Try and impersonate using: user=DDMUser and null catalog.
Starting to impersonate user: DDMUser -- Null catalog
Adding for execution SQL statement: ALTER SESSION SET CURRENT_SCHEMA = DDMUser
Here are the 1 return codes after executing the statement list:-
0: 
Statement returned with number of rows: 
0
Completed impersonation to user: DDMUser
Completed successfully impersonating user: DDMUser -- Null catalog
MaskingAction: Rewriting start to:  SELECT   "EMPLOYEES" . "EMPLOYEE_ID" , "EMPLOYEES" . "FIRST_NAME" , "EMPLOYEES" . "LAST_NAME" , "EMPLOYEES" . "EMAIL" , "EMPLOYEES" . "PHONE_NUMBER" , "EMPLOYEES" . "HIRE_DATE" , "EMPLOYEES" . "JOB_ID" , "EMPLOYEES" . "SALARY" , "EMPLOYEES" . "COMMISSION_PCT" , "EMPLOYEES" . "MANAGER_ID" , "EMPLOYEES" . "DEPARTMENT_ID" 
FROM HR . EMPLOYEES 
Replace Using MaskingRule
Original Statement:
SELECT * FROM HR.EMPLOYEES
Replaced by:
SELECT   substr("EMPLOYEES"."EMPLOYEE_ID",1,2) "EMPLOYEE_ID" , substr("EMPLOYEES"."FIRST_NAME",1,2) "FIRST_NAME" , substr("EMPLOYEES"."LAST_NAME",1,2) "LAST_NAME" , substr("EMPLOYEES"."EMAIL",1,2) "EMAIL" , substr("EMPLOYEES"."PHONE_NUMBER",1,2) "PHONE_NUMBER" , substr("EMPLOYEES"."HIRE_DATE",1,2) "HIRE_DATE" , substr("EMPLOYEES"."JOB_ID",1,2) "JOB_ID" , substr("EMPLOYEES"."SALARY",1,2) "SALARY" , substr("EMPLOYEES"."COMMISSION_PCT",1,2) "COMMISSION_PCT" , substr("EMPLOYEES"."MANAGER_ID",1,2) "MANAGER_ID" , substr("EMPLOYEES"."DEPARTMENT_ID",1,2) "DEPARTMENT_ID" 
FROM HR . EMPLOYEES
Done by ClientInfo:[User=null, Host=null, application=null] - DDMUser

FolderAction: rule matched: true
FolderAction: rule applied: true
DNRStatementProcessor.getStatementHandler: rule match: [] on: SELECT * FROM HR.EMPLOYEES
-------------------------------------------------------------
Original statement:
SELECT * FROM HR.EMPLOYEES
Replaced by:
SELECT   substr("EMPLOYEES"."EMPLOYEE_ID",1,2) "EMPLOYEE_ID" , substr("EMPLOYEES"."FIRST_NAME",1,2) "FIRST_NAME" , substr("EMPLOYEES"."LAST_NAME",1,2) "LAST_NAME" , substr("EMPLOYEES"."EMAIL",1,2) "EMAIL" , substr("EMPLOYEES"."PHONE_NUMBER",1,2) "PHONE_NUMBER" , substr("EMPLOYEES"."HIRE_DATE",1,2) "HIRE_DATE" , substr("EMPLOYEES"."JOB_ID",1,2) "JOB_ID" , substr("EMPLOYEES"."SALARY",1,2) "SALARY" , substr("EMPLOYEES"."COMMISSION_PCT",1,2) "COMMISSION_PCT" , substr("EMPLOYEES"."MANAGER_ID",1,2) "MANAGER_ID" , substr("EMPLOYEES"."DEPARTMENT_ID",1,2) "DEPARTMENT_ID" 
FROM HR . EMPLOYEES

You view the log output to verify that you defined the rule correctly. You can save the Security Rule Set Simulator parameters and log output to a file. You can load the saved parameters and log output to a new instance of the Security Rule Set Simulator.

The log output shows that you created the rule properly. You exit the Security Rule Set Simulator and save the rule.

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Security Rule Set Simulator Example

Security Rule Set Simulator Example