Passwords are so last year
Passphrases are the new hotness. Who cares about upper case, lower case,
symbols, and numbers? Not me.
Caveats:
- This isn't a panacea
- It will not stop all the evils of the world
- If the site you use stores your credentials in plain text, you're as good as
done
- Dictionary attacks happen
- This is just some brute-force math that shows length is more important than
artificial complexity
- Phrase-Dictionary attacks do happen
- DO NOT use a Bible verse or song lyric
- DO NOT use a sports team
- DO NOT use a famous quote
- You must be only slightly creative and make a slightly original sentence
Time to crack is based on a massive cracking array that runs one hundred
trillion guesses per second. (Thanks to GRCs password
haystacks page for the calculations)
Take this password, typical, classical: tha2uy2Ieti+
- Length: 12 characters
- Categories: lower-case, upper-case, numbers, symbols
- Time to crack: 1.74 centuries
And this one, a bit longer: ae3chav3Ho{cik6g
- Length: 16 characters
- Categories: lower-case, upper-case, numbers, symbols
- Time to crack: 1.41 hundred million centuries
Let's get crazy: pahzoon2uCh9phoS'iSeeBa
- Length: 23 characters
- Categories: lower-case, upper-case, numbers, symbols
- Time to crack: 9.88 billion trillion centuries
And this passphrase: unlock syntax for tailspin
- Length: 26 characters
- Categories: lower-case
- Time to crack: 35.64 billion trillion centuries
And this passphrase, but two words longer: unlock syntax for massive director tailspin
- Length: 43 characters
- Categories: lower-case
- Time to crack: 45.34 thousand trillion trillion trillion trillion
centuries
The evidence is clear, the four-word passphrase is not only easier to remember,
but it's even more secure than the 23-character all-random password. Let's keep
this in mind when choosing a new root passphrase.
Storing the passphrase
You should be using a password
manager by now. Also, if you're
storing the passphrases securely, why not make a 64-character random password
for everything? Use a nice passphrase as your master password.
