Noob Keygen Coding Problem :(

[Rumour]

Chars from 3 input strings are XOR'ed in loop for make serial

Before loop again: AL contains part of serial. This is format to string in calls (see below for code)

This string is same as hex value in AL

Example: values for AL 42 3D 58 6C 19 44 75 5A make serial: 423D586C1944755A

How write serial in serialbox???

I try all day with SetDlgItemText, wsprintf, SetWindowTextA, SetDlgItemInt

Not is possible??? I go throw PC out of window

For complete, here is important from end of reg code:

		xor esi,esi
@@:
		mov cl,byte ptr ds:[esi+edx]		 	; char from string1
		mov dl,byte ptr ds:[esi+eax]			; char from string2
		mov al,byte ptr ds:[esi+ebx]		   	; char from string3
		xor al,dl
		xor al,cl;next, AL format in string (example: AL == 3B --> format in string "3B")		movsx ecx,al
		push ecx
		push dump_00501c50
		push edx
		call #2818_?Format@CString@@QAAXPBDZZ	  ;<= prepare value in ECX (AL)
		push eax
		call #939_??YCString@@QAEABV0@ABV0@@Z	  ;<= output hex value as string
		inc esi
		cmp esi,8
		jl @b

Loop is 8 time. Serial is always 8 bytes --> 16 digit

Someone help with code for write hex values in AL in serial box as serial string.

[Ziggy]

Try this code - I haven't tested it but should be ok

.data hexformat   db '%02X',0
 tempstring  dd 0
 genedserial db 32 dup(0).codemov byte ptr ds:[genedserial], 0 ; clear serial string
xor esi,esi
@@:
        mov cl,byte ptr ds:[esi+edx]             ; char from string1
        mov dl,byte ptr ds:[esi+eax]            ; char from string2
        mov al,byte ptr ds:[esi+ebx]               ; char from string3
        xor al,dl
        xor al,cl;next, AL format in string (example: AL == 3B --> format in string "3B")        movsx ecx,al        ;push ecx
        ;push dump_00501c50
        ;push edx
        ;call #2818_?Format@CString@@QAAXPBDZZ      ;<= prepare value in ECX (AL)
        ;push eax
        ;call #939_??YCString@@QAEABV0@ABV0@@Z      ;<= output hex value as stringpush esi
invoke wsprintf, addr tempstring, addr hexformat, ecx ; print the hex value to tempstring
invoke lstrcat, addr genedserial, addr tempstring         ; concatenate tempstr with serial
pop esi        inc esi
        cmp esi,8
        jl @b

Then use SetDlgItemText or SetWindowTextA (depending on the type of dialog box) to output "genedserial" to the dialog box.

BTW - what's the target?

cheers

Z

Edited February 27, 2007 by Ziggy

[Rumour]

Thank Ziggy. It work good.

hexformat db '%02X',0

I not know this. I try with %d and %ls and %lh and all from api help file but %02X not in api help file. Not work!

Thank again.

Target is MP3 Recorder 1.11

[Loki]

"%x" is for hex as "%s" is for string etc... are you sure thats not ducmented?

[Rumour]

"%x" is for hex as "%s" is for string etc... are you sure thats not ducmented?

Perhaps is documented but I not find.

I look in api help file and find with wsprintf:

c	A single character. 
C	A single character. 
d	A signed decimal integer argument. This sequence is equivalent to the i sequence.
hc, hC	A single character. The wsprintf function ignores character arguments with a numeric value of zero. 
hs, hS	A string. This sequence is always interpreted as type LPSTR
i	A signed decimal integer. This sequence is equivalent to the d sequence.
lc, lC	A single character. The wsprintf function ignores character arguments with a numeric value of zero.
ld	A long signed decimal integer. This sequence is equivalent to the li sequence.
li	A long signed decimal integer. This sequence is equivalent to the ld sequence.
ls, lS	A string. This sequence is always interpreted as type LPWSTR
lu	A long unsigned integer.
lx, lX	A long unsigned hexadecimal integer in lowercase or uppercase.
s	A string. 
S	A string. 
u	An unsigned integer argument.
x, X	An unsigned hexadecimal integer in lowercase or uppercase.

No 02X is mention!

I find another way: make 2 variabel from AL by split hex in 2 digits and add 30h if digit <Ah or add 37h if digit >9. Next concatenate in genedserial. Next use usual invoke SetDlgItemText,hWnd,IDC_SERIAL,addr genedserial. By this is difficult and ugly and long. Ziggy way is great and easy.

Thank for help. PC not throw out of window (yet)

[Ziggy]

I think the format descriptors are described in the winapi help but you really need to play with them to understand how they all work.

In this case '%02X' means

% - start format descriptor

0 - insert leading zeros if necessary

2 - length of the digit string. If the number is less than 2 places the '0' above means there will be a leading 0 inserted

X - uppercase hexadecimal characters. x means lower case.

your PC should be safer now

cheers

Z

[starzboy]

lol ... ty Ziggy ... i was wondering about the "0"

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