X-CUBE-CRYPTOLIB, is it necessary to request the software?

[VPatr.2]

Hi,

I'm working on a project that needs AES256 encryption, I requested the X-CUBE-CRYPTOLIB software, but it's being validated by STM32, my question is, why does this validation exist? Is there any criteria for them to make the software available? What is the deadline for allowing the download?

[TDK]

Cryptography is usually subject to export regulations.