That's a neat idea. What do you put in both? I see two options: 1) You copy the whole password, and use the whole password for both. Then an adversary can ju

That's a neat idea. What do you put in both? I see two options: 1) You copy the whole password, and use the whole password for both. Then an adversary can just attack the weaker, faster one. 2) You split the password; half goes in one and half in the other. Now user passwords have doubled in length---or they haven't, and you have 4-10 character half-passwords instead of 8-20 character passwords.