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<wowei> nice puzzle, Julie. keep on keeping on with those! |
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<wowei> hey this looks like a well designed crypt-machine. i especially like the way the number of bits is disguised when entering the key; perhaps a bit paranoid but nice and funny too. but i dont think, it gives very strong encryption. it reminds of DES with a 63 bit key and 24 bit salt or 7 s-boxes and going for 16 rounds. but the resamblence ends herewith, i think. DES uses the same function for cryption and decryption only with its subkeys in opposite order from round to roind. and there doesnt exist an inverted function. means: (i=input or cleartext, k=key, o=output or cipher) fik(i, k) -> o doesnt have an inversion fok(o, k) -> i it seems very likely that an inverted function (fok) exists in your machine. and that weakens the strength of cryption and gives a point for attacking it. it even increases the probability of the existence of fio(i, o) -> k which would ruin the crytion. Nevertheless i dont believe, i will be able to solve this puzzle, and thatswhy i hate your machine! ;) brute force, hahaha. dont you people think before writing? does your key contain any message at least, pieguy? |
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<radiant> (SPOILER) I would have uploaded a solution that finishes in 42,776 moves (this level falls victim to the same trap I succumbed to in Assembly Line v1), but of course the server doesn't let you do that. Why must an hour of pushing buttons back and forth, while looking for other ways to kill time, be for naught? <John Lewis> (SPOILER) Added speedrun: 462 moves (old: 484). I'm sorry, but this is just hilarious... |
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<radiant> (SPOILER) Added speedrun: 72 moves (old: 74). Correction...this is definitely optimal, and has a neat stalling position <radiant> (SPOILER) Added speedrun: 74 moves (old: 81). This is probably optimal |
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<pieguy> (SPOILER) i cannot guarantee that the solution is unique. in fact, i really wouldn't be surprised if it isn't. even under the assumption that the cipher is cryptographically strong (not terribly likely), there's still about a 40% chance that multiple solutions exist. |
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<radiant> (SPOILER) Minor leagues? Heck, this is a candidate for veryfunny if there ever was one. (I'm not uploading a speedrun because I'm sure he just wants to use Ctrl+0 on the solution and crack the original) <gary> (SPOILER) Added speedrun: 484 moves (old: 554). It's not REALLY fair to make a mod for this! <gary> (SPOILER) Added speedrun: 554 moves (old: 1000). Are you sure THIS mod is neccessary? It is to easier than the Optimization. I think Tom will move to MINOR LEAGUES! <pieguys evil> by the way, whose idea was it to limit online names to 12 bytes? this makes it sound like pieguy is evil, which, unfortuntely for me, he's not. only his evil clone (that's me) is evil. me, i prefer extolling the many virtues of cake. |
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<FrodoGreat> (SPOILER) Added speedrun: 205 moves (old: 213). Actually, this is an optimized solution from Doom's. |
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<gary> I mean, the solution code. <gary> Nope, solutions and comments cannot be deleted. <FrodoGreat> I'm truly sorry for the solution. The dialog asked me to provide one, and I thought it might get into some sort of database, and oops, there it is on the web page. I think I was a little too excited... Can I erase it? <gary> A really nice speed record, but don't give the answer to everyone, FrodoGreat. <FrodoGreat> This level is truly amazing. It's easy to solve, but very hard to find to fastest solution. |
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<gary> (SPOILER) I mean, I used in my Notepad program to tell me that there are 2 combinations in 1 remote, 4 combinations in 2 remotes, 8 for 3 remotes, and so on. This result tells me that the number of combinations made is 2 to the power of the number of remotes. When there are 63 remotes, there are 2^63 combinations. <gary> (SPOILER) It looks like there are 9,223,372,036,854,775,808 combinations, only one combination is made and the level is solved. |
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<Gil Anthony> finally got it Max. |
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<marty> (SPOILER) Cook: 122 |
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<pieguy> cracking DES in less than a day was the result of the coordination of thousands of computers (including one built specifically for cracking DES), which enabled them to check 200 billion keys per second. so far the best i've been able to achieve for this cipher is 80k keys per second (per core) on my computer, meaning it would take an expected million cpu years for my computer to crack it. |
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<gary> (SPOILER) Added speedrun: 374 moves (old: 378). Anyone got this so far? It's 374 so far. <gary> (SPOILER) Added speedrun: 378 moves (old: 382). Is this solution is the shortest? <gary> (SPOILER) Added speedrun: 382 moves (old: 384). I think that it is the lowest solution. |
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