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I have a text file that has been processed by the SNOW steganography tool that uses ICE encryption. However, I do not know the key that would enable me to decrypt and retrieve the message hidden.

What tools are available, that are proven to have worked that would help me in retrieving the key?

Edited: instead of asking "what ways are there", I've changed to "what tools are there"

user4981
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Brute forcing the password, since no useful cryptanalysis of ICE is known.


I'm really more of a theory guy, so I don't know of any tools for this, but there are some resources that I've found.

https://security.stackexchange.com/questions/1376/where-can-i-find-good-dictionaries-for-dictionary-attacks answers its title's question, and cryptospecs.googlecode.com/svn/trunk/symmetrical/specs/ice.pdf gives the details of the ICE algorithms. (It might be easier to pull the relevant code from SNOW rather than implementing ICE directly.) www.darkside.com.au/snow/description.html gives somewhat of a description of how passwords are converted into keys; I suspect that they then pad the right with zeros or with a one followed by zeroes, although it would be good to look at SNOW's code to be sure.

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