Most Helpful Guy
Yes, but don't be so sure he'll give it to you. Since you are only dating, there's no reason for him to do so. Put it this way: would you give him yours if he asked? What if he took such information for his own personal benefit, especially if you two suddenly broke up?
Most Helpful Girl
Honestly this doesn't sound like a very healthy relationship. He should not need to put a "security deposit" on the relationship