Decryption in Power BI

Hi, vsutar123 

Power BI itself currently does not support built-in decryption of encrypted data in its reporting capabilities. Data encryption and decryption is typically handled at the database or application level, not directly in Power BI.
There are several ways to implement decryption before displaying the data in Power BI:
You can decrypt the data in a SQL query using DECRYPTBYKEY or other SQL Server decryption functions, depending on how the data was encrypted. Here is an example using symmetric key encryption:

OPEN SYMMETRIC KEY SymKey DECRYPTION BY CERTIFICATE CertName;
SELECT
    CONVERT(varchar, DECRYPTBYKEY(EncryptedColumn)) AS DecryptedData
FROM
    YourTable;
CLOSE SYMMETRIC KEY SymKey;

Create SQL views or stored procedures on the server that decrypt the data at the database level. Power BI will connect to these views or stored procedures and get the decrypted data.
This ensures that all sensitive operations (encryption, decryption) are handled securely in the database.

Power BI is focused on visualization, and sensitive operations such as decryption should be performed securely in the database or through a custom middleware/API layer.

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