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| block cipher |
Thu 09 Apr 2009 13:52 |
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<radiant> Let's try thinking about this level in terms of "What does it take to construct it?"
Changing the initial text makes a significant difference in the number of times each bit is flipped over the course of the cipher, and this certainly isn't a symmetric cipher, so a chosen key and ending text don't give a very easy path to finding the initial text needed. Brute-forcing the text just gets you into a search space twice as big as trying to brute force the key.
We might have luck trying to look at the function from the perspective of "What are the valid predecessors of 0x0000000000000000?" and, while it may not be feasible to expand the search tree out to the full 1008 (effectively 1007) depth, we might at least be able to eliminate a few of the bits as dead ends. |
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| Newark Liberty Airport (EWR) |
Thu 09 Apr 2009 04:01 |
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<gary> I have solved it! |
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| Optimization (462) |
Tue 07 Apr 2009 16:59 |
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<Suzy> I need a hint for this level. It's driving me crazy! |
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| Jedi |
Fri 03 Apr 2009 22:37 |
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<gary> Exactly it is. |
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| I Pity the Fool |
Wed 01 Apr 2009 17:31 |
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<radiant> There seems to be a small bug here: is there a reason the first 61 remotes in line take a very long time to flip their targets, while everything after that goes off almost instantly? |
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| Chromatic Crisis (v4) |
Sat 28 Mar 2009 11:52 |
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<gary> ...and finally this level will not get cooked. |
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| Chromatic Crisis (v3) |
Fri 27 Mar 2009 17:50 |
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<mm> Ooops, thanks, I was just going to write you that I'm sorry to have cooked it again... ;-) |
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| mylevels/kill dalek |
Wed 25 Mar 2009 06:07 |
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<gary> I'd hope that this is the 480th ML level! |
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| Bounce Bounce Revolution: 7th Mix |
Tue 24 Mar 2009 15:16 |
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<Bekah> Awesome. Much harder than my version ;D |
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| Single File (mod2) |
Tue 24 Mar 2009 09:36 |
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<mm> Superbe speedrun, Wowei!
<mm> Great mod! :-) |
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| Bounce Bounce Revolution: 7th Mix |
Mon 23 Mar 2009 14:58 |
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<John Lewis> Very nice mod! |
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| Single File (mod2) |
Mon 23 Mar 2009 07:56 |
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<wowei> damned f... cool, noname ;) |
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| Bot ship prisiner |
Sat 21 Mar 2009 15:21 |
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<kim> yep yep
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| Single File (mod) |
Sat 21 Mar 2009 10:10 |
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<radiant> With this clear, my triage count stands at 1000...and triage+minorleague is exactly 1469! |
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| Too Many Lasers again (2 bots) |
Sat 21 Mar 2009 08:31 |
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<gary> I have solved this, and I added 2 speedruns with the message: Whatever. :) |
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| Single File (pre-Broken version) |
Sat 21 Mar 2009 07:37 |
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<gary> Bug: The optimizer was unable to optimize Max's solution (At least I solved it).
<gary> I finally solved it! It was possible to solve this level. |
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| Mediu-Hardish |
Sat 21 Mar 2009 02:51 |
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<gary> Now there are 470 ML levels now. |
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| Nice Cote d'Azur International Airport (NCE) (noname's mod) |
Sat 21 Mar 2009 01:16 |
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<gary> I finally got this one! |
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| mylevels/kill dalek |
Fri 20 Mar 2009 20:23 |
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<wowei> no no no, robots are your friends! :-) |
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| Remote Panic |
Fri 20 Mar 2009 20:10 |
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<wowei> yes yes, a good plumber does a thorough cleanup after work is done. |
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| Naughty Exits!! |
Fri 20 Mar 2009 19:51 |
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<wowei> this is a nice one. although the idea of disappearing exits isn't new it's still funny |
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| My very hardest |
Thu 19 Mar 2009 03:06 |
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<gary> Probably it is.
<radiant> Shades of HARDEST IQ CARRIER (EXPERTS ONLY)? |
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