Especially since you can try the encryption algorithm.
Create 1000 users very quickly in a row and you now have 1000 samples of enc(i) all the way up to enc(i+1000) that can help you break the algorithm.
Not saying it will be easy but it surely lowers the guarantees given by the encryption. Someone better at crypto can probably quantify this risk better than me.
Create 1000 users very quickly in a row and you now have 1000 samples of enc(i) all the way up to enc(i+1000) that can help you break the algorithm.
Not saying it will be easy but it surely lowers the guarantees given by the encryption. Someone better at crypto can probably quantify this risk better than me.