I have tried with both hash256() and autonumberhash256() but it is not working. What I have read from the community is that, hash256() is a different hashing mechanism than SHA256. But I have to use SHA256 and not any other hash function.
Could you help in figuring out if it is possible to implement SHA256 in Qlik Sense ?
How did you read the Hash() not working for you? There is no default algorithm AON for that. But, You can simplify using the Macro function to achieve that - I am not scripting person who can divide or change into Bytes. Because it won't change Hex byte string to MIME protect key.
I hope some others can help you.
Before develop something, think If placed (The Right information | To the right people | At the Right time | In the Right place | With the Right context)
Qlik doesn't have any function for that in-built. That means, natively you would probably not be able to do that. You could use a vb code/jscript for the same or may be use an extension object for the same; anyway you have to use a similar coding to get the hashing done.