user manual

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Chapter 5
Encrypting and Decrypting Information
When you save a stream, node, project , output file, or model nugget, you can encrypt it to preve nt
its unauthorized use. To do this, you select an extra option when saving, and add a password to the
item being saved. This encryption can be set for any of the items that you save and adds extra
security to them; it is not the same as the SSL encryption used if you are passing files between
IBM® SPSS® Modeler and IBM® SPSS® Modeler Server.
When you try to open an encrypted item, you are prompted to enter the password. After yo u
enter the correct password, th e item is decrypted automatically and opens as usual.
To Encrypt an Item
E In the Save dialog box, for the item to be encrypted, click Options. The Encryption Options
dialog box opens.
Figure 5-42
Encryption options when saving a file
E Select Encrypt this file.
E Optionally, for further security, select Mask password. This displays anything you enter as a
series o f dots.
E Enter the password. Warning: If you forget the pass word, the file or model c an not be opened.
E If you selected Mask password, re-enter the password to confirm that you entered it correctly.
E Click OK to return to the Save dialog box.
Note: If you save a copy of any encryption-protected ite m, the new item is automatically saved in
an encrypte d format using the original password unless you ch ange the settings in the Encryption
Options dialog box.
Loading Files
You can reload a number of saved objects in IBM® SPSS® Modeler :
 Stream s (.str)
 States (.cst)
 Models (.gm)