How long will it take to crack a DES hash?

The fear of every surveillance society: citizens protecting their own privacy with strong cryptography

How long will it take to crack a DES hash?

Post by 3vilp4wn on Fri Feb 15, 2013 9:01 pm
([msg=73827]see How long will it take to crack a DES hash?[/msg])

Hey there.
I'm curious about how long it'll take to crack a DES hash in John the Ripper. The hash that I'm testing it with is a "(Traditional DES [128/128 BS SSE2])" hash (according to JTR). I was unable to find recent info on how long it takes to crack a DES hash, most likely because DES is outdated. Here's what I've found so far:

  • In 1999, it was *possible* to break a DES hash in 22 hours and 15 mins.
  • DES is now considered insecure because a brute force attack is possible. As of 2008, the best analytical attack is linear cryptanalysis, which requires 243 known plaintexts and has a time complexity of 239–43.
  • DES uses approximately 72 quadrillion possible keys.

I'm starting to think the best solution is to give up...

Thanks for any help you can give :D .
Do not mistake understanding for realization, and do not mistake realization for liberation
Evil Ninja Hackers

User avatar
Posts: 144
Joined: Sun Feb 10, 2013 2:05 am
Location: The darkness.
Blog: View Blog (0)

Return to Crypto

Who is online

Users browsing this forum: No registered users and 0 guests