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Author Topic: Secure (Ish) Cipher  (Read 5363 times)

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Offline AngelFish

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Re: Secure (Ish) Cipher
« Reply #15 on: December 02, 2010, 08:42:46 pm »
It takes forever to pick the key to begin with.
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Offline jnesselr

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Re: Secure (Ish) Cipher
« Reply #16 on: December 02, 2010, 08:51:48 pm »
Quote from: DJ Omnimaga on December 02, 2010, 07:20:53 pm
How long does a 16 bit key takes to get factored on-calc? What about a recent computer?
16 bits means 2^16 possibilities or 65,536 different options.  So about a millisecond either way. (Depending on the algorithm.  Counting 1-256 would be faster, and that's all you need to count to find factors)

Also, sadly, I just became un-evil'ed.
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Offline DJ Omnimaga

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Re: Secure (Ish) Cipher
« Reply #17 on: December 03, 2010, 01:51:13 am »
I see, pretty fast then, lol. :P
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Offline JustCause

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Re: Secure (Ish) Cipher
« Reply #18 on: December 03, 2010, 09:46:54 am »
Quote from: DJ Omnimaga on December 02, 2010, 07:20:53 pm
How long does a 16 bit key takes to get factored on-calc? What about a recent computer?
...okay, so it can be human-factored in under 5 minutes. It was a proof of concept XD
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Offline DJ Omnimaga

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Re: Secure (Ish) Cipher
« Reply #19 on: December 03, 2010, 05:20:56 pm »
To discourage people from cheating in BASIC games by modifying save data, if you can't use a complex encryption method and the save files can be decrypted pretty fast, I just make the save file be deleted completely upon game loading if the game detects it was modified and has invalid values. In Mana Force 2, when you tried to load a save file where you're Level 120 for example, it started a new game instead.
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