Hi,
knitti wrote:
...
At least if there some quant. computers 128Bit will not save ya day
anymore.
quantum computers are the real big buzzword to scare people into
irrational behaviour. nobody knows whether or when quantum computer
will be able to brute force 128 bit keys. and whether twofish will save you.
Bruce Schneier recommends using 256 bit keys in order to achieve 128 bit
overall strength for a symmetric cipher. You can read it in 'applied
cryptography'. The reason for this recommendation is related to
collision attacks.
In my personal opinion, I think, the weakest link is entering the
password when opening a svnd device. Are there already solutions known
which combine passwords (knowledge) with hardware devices (i.e.
smartcards) or biometrics in order to access some secure storage? I
don't own one, but don't at least a couple of newer IBM notebook models
have a fingerprint reader and a TPM built in? Do you think a combination
of these measures would improve overall security?
regards,
Andreas
