New Secure Connect Method for the connection between SAP processes and the Oracle database
There is now a new method for the connection between SAP processes and the Oracle database. Instead of storing the encrypted password in the database, it is stored in the file system. This means that the Oracle remote OPS$ connect, which has been used up till now, is no longer needed.
For more information, see SAP Notes 1622837 and 1639578.
Secure storage is now supported in BR*Tools. For more information, see SAP Note 1764043
Source : http://scn.sap.com/