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QbasicNews.Com => Challenges => Topic started by: ca336458 on June 29, 2004, 06:22:49 PM



Title: Winrar challenge!
Post by: ca336458 on June 29, 2004, 06:22:49 PM
Can anyone come up with a program that can crack a password protected winrar archive? Is it even possible?


Title: Winrar challenge!
Post by: Plasma on June 29, 2004, 06:43:39 PM
http://www.elcomsoft.com/archpr.html


Title: What about this then?
Post by: ca336458 on June 30, 2004, 10:37:05 AM
That URL says that the only ways to get the password from a zip or rar file is to use the dictionary method or brute force method. My true challenge is if it's possible get the password for a zip file that has this password:

87f5gj5346f3h67m93487593nv3457908908lkmnmnfrugsytefbnjnerh763jh764423s7657d65gh54d54s3fj7f6j7895ym8uh7yg5rd4wq25455r78uyguiyg8762837468273n82365i3jh6kjl3hnlhsdfn87asy897487y89274y5b34h5blk34h5n87yn87aywn498bt73y487ty8734t78987y47634598674un97v26387r6v2987t69v872364t98v726398475v

No matter which method you use, it would take like 10,000,000 years. Is there possibly a way to get a password that long?


Title: Winrar challenge!
Post by: Plasma on June 30, 2004, 10:45:57 AM
Quote
Known plainext attack is available


If you know the exact contents of one of the files in the zip, you can use that to get the password.