oclHashcat-plus cracks TrueCrypt

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RaT's picture
SX High Council
Joined: 2008/03/12

Read it and weep Tongue



atom wrote:

I've some good news! I've justed finished a working oclHashcat-plus version to support cracking TrueCrypt

Everything is written 100% on GPU.

There is no copy overhead to the host, thus your CPU will stay cool at 0% and you can do whatever you want to do with it.

Current implementation is able to crack all the supported hashes:

So far for the hashes (and thats what makes cracking TrueCrypt slow).

For the ciphers, I'm currently doing only AES and of course the XTS block-cipher.

Serpent and Twofish and there cascaded modes will be added next.

Here are some speeds from 2x hd6990:
PBKDF2-HMAC-RipeMD160 / AES: 223 kHash/s
PBKDF2-HMAC-SHA512 / AES: 95 kHash/s
PBKDF2-HMAC-Whirlpool / AES: 49 kHash/s *updated*
PBKDF2-HMAC-RipeMD160 boot-mode / AES: 451 kHash/s

These tests show oclHashcat-plus is new worlds fastest TrueCrypt cracker

While I was implementing the Whirlpool hash I found out how this hash can be optimized by over 50% in raw mode. However, some of these technique can also be used within an PBKDF2-HMAC construct.

PS: I'll explain the technique at my talk on passwordscon 2013 in Las Vegas.

Stay tuned for v0.15 release