How would i be able to validate my model based on the parameters outlined in UserIdentity password

Question

Hello,

I was following an identity tutorial, and I was wondering how would I be able to validate my password creation against the default parameters outlined in IdentityOptions without using a regular expression by manually defining these parameters, or is that the best way to go about it? Or is there a better way to validate it based on the default parameters and display the validation messages based on the image below.
THis is the video series