5 ms·
As a noob in encryption, why is it not possible to guess the 128 bit private key by brute force?
by Achshar 13y ago
As a noob in encryption, why is it not possible to guess the 128 bit private key by brute force?
- deleted 13y ago[deleted]
- tptacek 13y agoI could explain this, but in all seriousness, I think the better answer to this question is to urge you to pop open your Perl, Ruby, or Python prompt and work the math out.
- EliAndrewC 13y agoThere are 340282366920938463463374607431768211456 possible 128-bit keys. So if you had a machine that could check a trillion possible keys per second it would take over 10 quintillion years to try all possible 128-bit keys.
- repsilat 13y agoThe math: https://www.google.com/search?q=2%5E128+%2F+1E12Hz+in+years https://www.google.com/search?q=2%5E128+%2F+1E12Hz+in+years
- crististm 13y agoThe brute force algorithm is O(2^n)