My last one for this year and it should be fun to reverse but you might wanna take your time with it.

 

Basic info:
Compiler: Borland Delphi
Packer: A walk in the park to unpack, and this time DO NOT ask GIV!
Level: Just right to keep you entertained
Solution: A keygen and maybe a tutorial to share your knowledge with othersEnjoy & Good Luck

kgm18.7z

Very easy to unpack.

No special features of protector used like checking if is packed, API redirection etc.

Just in case someone feels challenged by the packer (doubt it very much).

dump_.zip

Edited September 9, 201410 yr by xSRTsect

Here is a optimised dump.

 

Unpacked.7z

oh my god!1 no way guys this is an official keygenme challenge not unpackme. 100% invalid - u really need to follow the rules u know

keccak

It didn't seem very interesting, appart from the need of coding a fast dlp-solving method (for instance Index Calculus). 

 

Zuma

BEF51F8C37A57279A37BF53113D26F23

 

 

 

The proper solution envolves the coding a dlp solving method?

Edited September 15, 201410 yr by xSRTsect

Just a conceptualization of something that I have. I'd like to peak into the source code of the crackme (a request)

kgm18_kg.zip

@xSRTsect: Solution accepted but I must decline your request (the source remains private)

Remark: I have just noticed that I may have screwed up by using operator >> for istream reading into strings. It will only read untill a empty space is found, it could be easily fixed using getline instead. So if testing the keygen you should not use names with spaces.