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 Post subject: just wrote my own little encryption program
PostPosted: Tue Apr 04, 2006 9:33 pm 
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Code:
65143584 138573824000 174143200 703826624512 15241216 752770678784 421549088 3114523951104 293154752 2402481602560 108295000 272188293120 252617456 1428427505664 27631616 2474207084544 204766336 734873321472 267827248 2342326370304 25134264 12709729280 261876832 1917168648192 439822816 3630336835584 301897184 3498279698432 308063136 1843790217216 3091600 3247805300736 43195952 52161761280 130559000 395609079808 6746112 147479134208 2987971 151282352 156290400 682858577920 357833312 2971762688000 124227776 503935926272 12945408 543068913664 343989184 2220654592000 144436864 605963026432 56187108 103088742400 199436608 800228048896 21473104 15056622592 13665280 605146513408 167987920 788900610048 19387850 7302832128 16724992 906473897984 48172480 43550126080 297868320 1785059082240 359938560 2349290225664 421361184 3331965321216 61802624 110944010240 1198400 488008024064 134108096 502777905152 278202944 2429663838208 26843136 2335016484864 309832832 1521727176704 95019552 202095853568 219352544 872499642368 12859392 535876042752 231348496 2054328025088 32178096 20831696896 91472368 273223286784 19403776 1220101537792 123072120 304735682560 112721048 414904287232 205897152 1627185610752 134880000 618185031680 180776928 913591762944 90483800 190017798144 294187584 2612901969920 19101696 1182407852032 86629728 140839780352 49937472 72434106368 346934688 3364818518016 391750944 2981618778112 22384032 454244106240 13362176 578599190528 384370176 2341969592320 174588576 682280681472 66076804 79173156864 11766784 448682393600 225621760 1478604357632 282025376 3052901498880 10053128 1771323008 249424656 2031499083776 9385984 285484843008 152270000 787865468928 132725208 575234244608 151170624 808383414272 384587680 3310718287872 157660000 844629868544 158146096 816685514752 34300000 39977132032 26785792 2325050818560 221010368 1175824891904 188429664 562834178048 32913408 3510501638144 199339424 956541370368 233001040 1772774883328 173670704 585983131648 183496880 654168096768 90994440 317808967680 52896472 84474945536 241172048 1899292262400 53638816 2608381034496 4528128 66444775424 256296144 2323628949504 223675440 1119871041536 271354592 1708940722176 26437628 21101797376 353829088 2518784671744 130916824 657850761216 300607040 1695858950144 213548400 826937311232 84307392 177525063680 92001200 324880334848 182638288 626001051648 18169200 9228642304 23853456 12736030720 341958112 2713928597504 297588960 1720543346688 1408600 674215493632 8824950 64535371776 87375912 270063616000 166166208 802001977344 196356560 775701856256 118110824 389982912512 19533324 7412835328 66109328 82019459072 328600128 3018572693504 224705744 1938049073152 154783200 556032655360 25627648 2128339795968 78623624 218669744128 50621760 64003366912 460840128 3366529794048 168220000 961564966912 38998424 49662889984 29879296 2893104807936 80385480 238053343232 201534592 909139836928 44173404 39257776128 172654416 1054479089664 256382464 1909266972672 74712128 182272032768 297335488 1778678497280 95241568 170233282560 51899792 50550173696


If anyone can decrypt that, I would be surprised.

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 Post subject:
PostPosted: Tue Apr 04, 2006 9:49 pm 
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Probably not.

Off to the coders corner this goes. =)


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 Post subject:
PostPosted: Wed Apr 05, 2006 6:15 am 
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Maybe post the source?


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 Post subject:
PostPosted: Wed Apr 05, 2006 6:44 am 
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Can we get any kind of basis for this? or do we start from base-line-zero?


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 Post subject:
PostPosted: Wed Apr 05, 2006 8:02 am 
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Remember a VITAL rule of cryptography.

ASSUME THE SYSTEM IS KNOWN.

Provide us with the source, and you might get some folks interested. Otherwise, people are unlikely to put any time into it.

For folks that like cryptography, I recommend The Crypto Forum

It moves kinda slow, but has some really cool crypto stuff. There are a couple of VERY skilled cryptographers who visit there on a regular basis and discuss ideas, exchange code, and try to challenge each other.


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 Post subject:
PostPosted: Wed Apr 05, 2006 3:50 pm 
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well, the thing is, if i were to give the source, all you would have to do is compile it and then run it

there is no key ... well, no user supplied key

also, you will never get the same output for the same message

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 Post subject:
PostPosted: Wed Apr 05, 2006 8:59 pm 
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Quote:
there is no key ... well, no user supplied key


Ah, well, you might want to consider changing that aspect of your system... :D


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 Post subject:
PostPosted: Wed Apr 05, 2006 9:01 pm 
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I depends on how the system is deployed.

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 Post subject: Re:
PostPosted: Wed Apr 05, 2006 10:56 pm 
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ccb056 wrote:
I depends on how the system is deployed.


No it doesn't. If you need to hide the source to keep it secure, its a worthless encryption program.


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 Post subject:
PostPosted: Wed Apr 05, 2006 11:44 pm 
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fliptw wrote:
If you need to hide the source to keep it secure, its a worthless encryption program.


Seriously, fliptw is telling you the truth here. It may have been lots of fun to write, and I'm certain you learned some things. So I'm not saying you wasted your time. Good on you for writing it!

But if you are considering actually USING this program to protect ANY kind of sensitive data, you should change your mind. :)

It'a all laid out in "Kerckhoff's Principle".

A cryptosystem should be secure even if everything about the system, except the key, is public knowledge.

Someone WILL discover the alogorithm.


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