If the model is developed on a DBMS repository, the Save As dialog has an Encrypt Connection String check box instead of the radio buttons, as shown below:

You can create the shortcut actions as described above and, if necessary, select the checkbox to encrypt the database connection string. You can then distribute the shortcut file to the database users who are to access the model. The users then have an encrypted string such as:

 

EAConnectString: ora10_db --- DBType=3;ConnectEx=+wkIE;B?e 52+H`"e?r-pb_ZyAI3a]Vsfh8p];Co\d/bnX$5<(;'US"^GxvbbRsK{*%AwL4y1{P<je.%R1 ?AY;y'!7pw$X%)_EwLXWpKg7tzLF=T