Keygen challenge

http://a1k0n.net/blah/archives/2009/04/03/index.html#e2009-04-03T21_36_15.txt

Are you a bad enough dude to crack the DSA?

Eh? You got that from Reddit!

>>2
/prog/ and reddit are basically the same thing (except they suck cocks XD ), they even have pronunciation threads
http://www.reddit.com/r/programming/comments/89zwz/portable_ubuntu_run_ubuntu_as_an_application_in/c08nlcm

>>3
Except our Microsoft fanboys are obvious trolls. Theirs are real and numerous.

>>3
XD

"If a theoretical cracker disassembles the code, he absolutely must understand RSA at some level, extract n, and factor it in order to create a key generator."

Seeing some cracks I have no doubt that this is possible.  They enjoy a challenge.

" so it's pretty much a drop-in replacement for whatever hashing scheme that most software tends to use. "

This guy isn't ever going to secure anything, eh?  Dongles had reasonably good crypto, and clear instructions for use.  programmers often ignored those instructions, and did things wrong, leaving many dongle-protected softs easily crackable.

Dongles are also not cost effective

>>6 is DQN.

>>6
The challenge is to create a keygen, based on the assumption that the key verifying program cannot be changed (otherwise you'd just change it to printf("%s ok\n", argv[1]); and complete the challenge, but it would completely miss the point.)

LOL DONGS

Did somebody say dongs?

_{D^BO^UN^TG^TS}

>>9
The challenge is to create a keygen, based on the assumption that the key verifying program cannot be changed (otherwise you'd just change it to printf("%s ok\n", argv[1]); and complete the challenge, but it would completely miss the point.)

And since when are crackers limited by such conditions in the real world ( exceptions are some secure platforms, but in that case, the challenge is cracking the platform, then all the security depending on it fails ).

In a realistic scenario, a cracker would decrypt what code is needed, if the code is encrypted, replace keys, and write a keygen for the keys he has replaced.

>>13
Realistically, a crack that only requires a keygen and not any modification of the software itself is considered to be a superior, more elegant crack. So this is still a relevant challenge.

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