*dbname*
true
false
utf8
*dbprefix*twofactor_u2f_registrations
id
integer
1
0
true
4
user_id
text
true
64
key_handle
text
true
255
public_key
text
true
255
certificate
text
true
4000
counter
integer
true
4
name
text
false
255
u2f_registrations_user_id
user_id
ascending