To your question: even transformation of 0.001s and password of 12 random characters will deter an attacker for many thousands of years. It is much cheaper to install some hardware like video cameras or key loggers and obtain your password in a short time. Who will rent a cluster of 1 000 000 CPUs for many years just to break your password? It costs also money: to purchase these CPUs, to supply electric power, etc. If you use less iterations so transformation instead o 1s takes 0.001s, then the attacker will need 3 x 10^8 x 0.001 = 3 x 10^5 = 300 000 years. The attacker will check 3x10^7 x 1 000 000 = 3 x 10^13 passwords per year. Download FileZilla Client for macOS The latest stable version of FileZilla Client is 3.63.2.1 Please select the file appropriate for your platform below. There are about 3x10^7 seconds in a year. The he will be able to check 1 000 000 passwords/s. Suppose password transformation takes 1s. There are 62^12 possible passwords, this is about 10^22. Suppose you have password of 12 characters, each one from the range of "human friendly" characters (a-z, A-Z, 0-9 -> 62 characters). To slow brute-forcing down, Keepass uses transformations. Passwords of what length can you remember? 10 characters? 12?Ī human readable password of 12 characters means entropy of about 72 bit. It should be either remembered or stored somewhere else (e.g. But the *master password is not stored in the database. The passwords kept in the password manager database can be arbitrary long, because user doesn't need to remember them, he will just copy them from the password manager.
0 Comments
Leave a Reply. |