base64, md5, etc

Index > Windows > base64, md5, etc

Author

Thread

zxcv
Guest

zxcv 11 Jan 2008, 09:37

is ther any library under windows that has hash/codes algs?
Im almost sure it is, ms always put lot of usless stuff in system. So whats its name?

11 Jan 2008, 09:37

MHajduk

Joined: 30 Mar 2006
Posts: 6115
Location: Poland

MHajduk 11 Jan 2008, 10:03

Some cryptographic stuff (eg. for calculating MD5 hash) you can find in 'advapi32.dll'.

11 Jan 2008, 10:03

AlexP

Joined: 14 Nov 2007
Posts: 561
Location: Out the window. Yes, that one.

AlexP 11 Jan 2008, 14:46

Yeah, or just make your own. Doesn't take much to make MD5 (which is already broken) or SHA-1 (which is considered broken by most people). I have SHA-1,SHA-224,SHA-256 coded in FASM, and if u want I can give u an MD5 by the end of the day Smile

Just ask for something, I'm home sick from school Confused

. Fever goin' around all over here. BTW, if u want a FASM implementation of the sequence of API's that u need to call, I'll post them here for u to use.
Okay, here's the process of API's u need to call if u want to use the Win implementations : (by doing so u call yourself a weakling Smile

)

Code:

CryptAquireContext > CryptCreateHash >  CryptEncrypt OR CryptHashData > CryptDestroyHash > CryptReleaseContext

There's other things like CryptGetHashParam for obtaining the hash, MSDN has all the doc's for them.

There's quite a bit u need to do, but only have to manage a few pointers to the CSP objects. I'll be happy to supply u with any of them, backdoor optional Smile

Almost done w/MD5, here in a few hrs after debug...

11 Jan 2008, 14:46

rugxulo

Joined: 09 Aug 2005
Posts: 2341
Location: Usono (aka, USA)

rugxulo 25 Jan 2008, 06:56

I think decard wrote a base64 lib, maybe also md5 (can't remember). Too bad his site is down. Anyone have it on-hand?

25 Jan 2008, 06:56

rugxulo

Joined: 09 Aug 2005
Posts: 2341
Location: Usono (aka, USA)

rugxulo 26 Jan 2008, 20:44

Found it! Hope this helps. Very Happy

Code:

Archive:  decard-base64.zip
  Length     Date   Time    Name
 -- ------    ----   ----    ----
        0  09/09/04 13:31   base64/
     3072  09/14/04 08:45   base64/base64enc.exe
        0  09/14/04 08:40   base64/source/
     4252  09/14/04 08:44   base64/source/base64.asm
       78  09/14/04 08:41   base64/source/base64.fpr
     6268  09/14/04 08:44   base64/source/cmdln.asm
     3670  09/14/04 08:44   base64/source/base64enc.asm
 --------                   -------
    17340                   7 files

Description:	decard's base64 library for FASM (w/ example)	Download
Filename:	decard-base64.zip
Filesize:	5.32 KB
Downloaded:	693 Time(s)

26 Jan 2008, 20:44

< Last Thread | Next Thread >

Forum Rules:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum