> Really, MD5 is Encryption and the hash I take it means that it generates > a random key or something else. If you want some more information on the > tools that can do it then visit www.astalavista.box.sk > There are some great articles on MD5 Decryption in there.
Every tool I found on that site does a brute force attack, not decryption. As far as I have ever heard from any reliable source, MD5 is one way, no "key", and brute force attacks are the best know offense. Read this: http://www.rsasecurity.com/rsalabs/faq/3-6-6.html "MD5 was developed by Rivest in 1991. It is basically MD4 with ``safety-belts'' and while it is slightly slower than MD4, it is more secure. The algorithm consists of four distinct rounds, which has a slightly different design from that of MD4. Message-digest size, as well as padding requirements, remain the same. Den Boer and Bosselaers [DB94] have found pseudo-collisions for MD5 (see Question 2.1.6). More recent work by Dobbertin has extended the techniques used so effectively in the analysis of MD4 to find collisions for the compression function of MD5 [DB96b]. While stopping short of providing collisions for the hash function in its entirety this is clearly a significant step. For a comparison of these different techniques and their impact the reader is referred to [Rob96]. Van Oorschot and Wiener [VW94] have considered a brute-force search for collisions (see Question 2.1.6) in hash functions, and they estimate a collision search machine designed specifically for MD5 (costing $10 million in 1994) could find a collision for MD5 in 24 days on average. The general techniques can be applied to other hash functions. " -Cameron -------------------- Cameron Childress elliptIQ Inc. p.770.460.1035.232 f.770.460.0963 -- http://www.neighborware.com America's Leading Community Network Software ______________________________________________________________________ Dedicated Windows 2000 Server PIII 800 / 256 MB RAM / 40 GB HD / 20 GB MO/XFER Instant Activation · $99/Month · Free Setup http://www.pennyhost.com/redirect.cfm?adcode=coldfusiona FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/cf-talk@houseoffusion.com/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
