As far as i know there are no decryption functions in QlikSense, but if you know the rules for the encryption (and its simple) it might be possible for you to write some script which will decrypt your values during the data load.
Alternatively can you pass a request from QlikSense to your data source and return the data in an unencrypted format?
Is there any workaround to decrypt data at the expression level? We have data that needs to be encrypted at rest, so we can't load it in through a stored proc and have decrypted data stored in the QVD.
Can we build an extension to have the data decrypt when the user opens up the app/sheet?
We've got a similar requirement as Ricky, we need to be able to mask/hash the data in the QVD files, i.e. at rest. Some uses should be able to see the actual values, whereas some users should only see the masked values.
For encrypting data at rest we can use the Qlik hash128() / hash256() / autonumberhash functions to achieve this.
It would be great if we didn't have to create two Qlik Apps, 1 with masked data and 1 which is not masked.