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Ideas for encrypting data in transit in SSIS |
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How can you encrypt data flowing within an Integration Services package? We don't think you can, but here are a couple of ideas. |
In this blog
Another course question (thanks, Khiem): how can you encrypt data passing between (say) sources and destinations in SSIS? The short answer is that I don't think you can (and neither does Shawn Melton at StackOverflow), but here are two ideas.
You can set the ProtectionLevel property to protect all of the text in a package incliuding passwords in connection strings. To do this, first right-click on the background of a package and choose to show its properties:
As this diagram shows, you can also press ALT + ENTER.
You can now change the ProtectionLevel property:
The property has 5 possible values.
You can see a summary of what each option means here, and even (from SQL Server 2012 onwards) set a project-level protection level:
Change the project's properties to set this option globally for all packages in a project.
However, while this encrypts things like connection strings it won't encrypt the data passing within a package.
To genuinely encrypt data while it flows within a package, you'll need one of the following SQL commands:
Command | What it does |
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EncryptByKey | Encrypts data using a symmetric key. |
EncryptByPassPhrase | Encrypts data with a passphrase using the TRIPLE DES algorithm with a 128 key bit length. |
So you could run an Execute SQL package within SSIS, to call a stored procedure to encrypt your data - some thoughts on this are given in this useful blog.
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