[KeyGenMe] BigX Chall 2

[Mouradpr]

if you see this tuts

http://www.tuts4you.com/forum/index.php?sh...amp;#entry82928

try to solve this chall

BigX_Chall_2.rar

[HMX0101]

Impossible to solve it without patching... modulus is so big..

[Mouradpr]

ok try with it

RSA-300

BigX_Chall_2.rar

Edited July 18, 2008 by Mouradpr

[HMX0101]

Done.. factoring took 1hour

Keygen:

http://stashbox.org/161339/bigxchall2-keygen.rar

Cheers.

[Mouradpr]

Done.. factoring took 1hour

yeh; Good Work

[xsp!d3r]

nice keygen and keygenme

a little tutorial will be nice

[Encrypto]

RSA_Decrypt(sha256(md5(name))) = Serial.

[HMX0101]

Yeh.. that's all

Not much to say, really

[xsp!d3r]

that's a too long algo

[sama]

hello Mouradpr

thank you for the nice keygenme

was funny.

[Angel-55]

actually Xspider it's a 10 line code in C++ probably less ^^ nothing serious use drizz's hash lib and use miracle for RSA calculation.... no big deal if u wanna start and try it

the algo that Encrypto said is easy to code, you get the name then hash with MD5 and hash that MD5 hash again with SHA256 then decrypt that string..... (of course u need to get the N and factorize to have the D back to decrypt) nothing serious with a 300bit key just let Msieve handle it.... depending on ur machine speed and usage, u'll have it at the end and use it that's all u need to know since ASM shows a clear code for what the calls does.... he didn't hide anything on purpose hhhh gotcha Mouradpr

Mourad you might get a solution from me but i dunno ^^ i'am kinda lazy to do it lol !

Edited July 22, 2008 by Angel-55

[xsp!d3r]

thx Angel-55 i actauly i was already knowing about SHA265 and MD5 but the rest nop

thx again