NiFi EncryptContent with SHA256_256AES decrypt in Snowflake

[#1]

Hi, I have a simple task that is not so obvious when trying to get things done. I have to encrypt flowfiles with SHA256_256AES before puting in on S3 bucket and later decrypt it with Snowflake.

When using SHA256_256AES I need to provide password and optionally Raw Key (hexadecimal) and Snowflake requires 128,192 or 256 bits key.

My question is: is NiFi generating key itself when none is provided? Or do I have to generate key myself somehow? Below I attach processor configuration.

The key specified in query is exemplary to show accepted length.

[#2]

Was this issue resolved, How can we use encrypt processor in NiFi and Decrypt the same in Snowflake

[#3]

In response to the question is NiFi generating key itself when none is provided? Or do I have to generate key myself somehow?

Answer is : Raw Key (hexadecimal) property only used when given algorithm uses Keyed cipher for example : AES_CBC, it has to be provided by user , Not generated automatically, based on processor configuration screen shot , password is only needed in NIFI and , same password should be used while  decrypting with in NIFI by same processor with Mode: Decrypt or any other decrypting application.