2 ms·
If you take full disk encryption with Truecrypt, the max length of your password is limited to 64 char. If you use a pass phrase it will be easier to crack wit
by jmnicolas 12y ago
If you take full disk encryption with Truecrypt, the max length of your password is limited to 64 char.
If you use a pass phrase it will be easier to crack with a dictionary attack since at best you will put about 15 words in 64 chars.
- lmm 12y agoHow long's the actual Truecrypt key? Ordinary conversational English has about 3 bits of entropy per character, so 64 characters will have an equivalent strength to a 192-bit key. If Truecrypt uses 128-bit keys that's plenty; if they use 256-bit keys, they ought to allow a longer passphrase. Of course if you choose truly random characters you have 7 bits of entropy per character, so you would have the same strength with a 28-character password. But which is going to be easier to remember, 28 random characters or 64 characters of ordinary English?