question about HASP [Archive] - RCE Messageboard's Regroupment

dive2code

January 19th, 2005, 01:38

Hi all,

I tried with hasp dongle, may be hasp4.

In this case, the seed code (eax) of IsHasp() is 'zero'.

Is it not important or something wrong?

CrackZ

January 21st, 2005, 20:39

Hiya,

IsHasp() (service 1) doesn't care about a SeedCode (nor in fact the HASP passwords, it just fires back EAX=1 for HASP present or 0 no HASP), the seed is only relevant to HaspCode() (service 2).

Regards

CrackZ.

dive2code

January 22nd, 2005, 08:12

Hi CrackZ,

Yes, the seed code is not meaningful for service1.

And emulating was no problem.

But I am wondering the seed code is still 'zero' value with service2 in this target.

Code:

cmp     bh,32

jb      short 0040C9FF

mov     esi,dword ptr [ebp+28]

mov     eax,dword ptr [esi]

mov     esi,dword ptr [ebp+20]

mov     esi,dword ptr [esi]

push    ebp

call    0040C0BD		-==> ax 0x0

				-==> bx 0x0201

				-==> cx 0x7882

				-==> dx 0x20CE

I want to know why the seed code is still 'zero' in service2,

and the meaning of bl.

( the 2nd question may be solved by myself with reference in the web :P )

CrackZ

January 22nd, 2005, 08:49

Hiya,

I don't see the problem, the seed code can range 0x0-0xFFFF, so 0x0 is a perfectly valid query. If I remember rightly BL holds the LPT number.

Regards

CrackZ.

dive2code

January 22nd, 2005, 15:17

Thanks a lot CrackZ