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[Feature Request] $RAR3$*1 Support #1334

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itchyballsack opened this Issue Aug 17, 2017 · 2 comments

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@itchyballsack

itchyballsack commented Aug 17, 2017

Just tried this type of hash today only to find out it doesn't work :( Is there any plan on implementing support for this?

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roycewilliams Aug 17, 2017

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Huh - this was news to me, didn't realize there was a difference (or why hashcat's -m 12500 is listed as "RAR3-hp" - to distinguish from what I would expect would be called "RAR3-p"):

http://blog.zorinaq.com/brute-forcing-rar-archives-encrypted-with-the-hp-option/
https://stackoverflow.com/questions/44504313/rar3-hashing-algorithm
http://openwall.info/wiki/john/sample-non-hashes#RAR

This thread suggests that support is planned, "but don't ask when": :)

https://hashcat.net/forum/thread-5334-post-28950.html#pid28950

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roycewilliams commented Aug 17, 2017

Huh - this was news to me, didn't realize there was a difference (or why hashcat's -m 12500 is listed as "RAR3-hp" - to distinguish from what I would expect would be called "RAR3-p"):

http://blog.zorinaq.com/brute-forcing-rar-archives-encrypted-with-the-hp-option/
https://stackoverflow.com/questions/44504313/rar3-hashing-algorithm
http://openwall.info/wiki/john/sample-non-hashes#RAR

This thread suggests that support is planned, "but don't ask when": :)

https://hashcat.net/forum/thread-5334-post-28950.html#pid28950

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magnumripper Aug 17, 2017

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#68

In order to check such RAR3 archives you need to implement loads and loads of deflating code on CPU side (it simply wont work on GPU), with very clever early-rejection stuff to keep speed up.

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magnumripper commented Aug 17, 2017

#68

In order to check such RAR3 archives you need to implement loads and loads of deflating code on CPU side (it simply wont work on GPU), with very clever early-rejection stuff to keep speed up.

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