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Index > Macroinstructions > MD5 (Need help topic).

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CFJ0



Joined: 06 Jun 2007
Posts: 9
CFJ0
Well, I have decided to start FASM and so far I have been able to make a few programs to make Messagebox's and such.
I am wondering if anyone got a macro to encrypt text with the md5 algorithm :S
This is a Win32 app Smile

Like:
Code:
call MD5 "hello"    

And it would return the md5 value of "hello".

Thanks for reading Smile

//CFJ0
Post 09 Jun 2007, 10:40
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
you are searching for procedure not macro
Post 09 Jun 2007, 23:39
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
Or really a macro and "call" is a typo error.

CFJ0, by "encrypt" you mean calculate MD5 hash?

For assembly-time strings you can use a macro but for run-time strings you need to write a procedure as vid pointed out.
Post 10 Jun 2007, 00:33
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CFJ0



Joined: 06 Jun 2007
Posts: 9
CFJ0
Yea calculate md5 hash :S
Post 10 Jun 2007, 12:30
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17671
Location: In your JS exploiting you and your system
revolution
You might be interested in SHA512 macros for fasm. SHA512 is more secure than the broken MD5.
Post 10 Jun 2007, 22:58
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
Quote:

the broken MD5


Do you have any link? (excluding rainbow tables).
Post 10 Jun 2007, 23:13
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vid
Verbosity in development


Joined: 05 Sep 2003
Posts: 7105
Location: Slovakia
vid
Loco: Google for "Vlastimil Klima". Yes, MD5 is broken.
Post 10 Jun 2007, 23:55
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LocoDelAssembly
Your code has a bug


Joined: 06 May 2005
Posts: 4633
Location: Argentina
LocoDelAssembly
Googled it. I have to finish a project before the deadline (2 hours) so I'll take a deep look into it tomorrow Razz

Thanks vid
Post 11 Jun 2007, 00:24
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SomeoneNew



Joined: 12 Aug 2006
Posts: 54
SomeoneNew
It's not broken ffs, just add salt & pepper to the hash and they wont guess it even by force in an year unless you're talking about the US gov. It would be easier to just disassemble de hasher or get the source by hacking force than trying to bruteforce a salted hash ffs.
Post 24 Dec 2007, 04:35
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17671
Location: In your JS exploiting you and your system
revolution
SomeoneNew wrote:
It's not broken ffs, just add salt & pepper to the hash and they wont guess it even by force in an year unless you're talking about the US gov. It would be easier to just disassemble de hasher or get the source by hacking force than trying to bruteforce a salted hash ffs.
Such bad advice should at least have a smiley to show you are only joking.
Post 24 Dec 2007, 04:56
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