3 ms·

I think the strongest one deployed today (A5/3 and GEA3) can be brute forced (64-bit), but typically takes far more than a few minutes.

• detaro 11y ago
  You seem to be right. There is a paper about fast attacks against A5/3, but according to the authors it doesn't necessarily apply to real attack scenarios. https://eprint.iacr.org/2010/013 https://eprint.iacr.org/2010/013
  • yuhong 11y ago
    Yea, related key attack I think.