Full Disclosure mailing list archives
Re: plz suggest security for DLL functions
From: upb <upbupb () gmail com>
Date: Fri, 1 Jul 2005 17:09:57 +0300
Hi. Try signing the hash of all your function arguments with a private key and then in the function calculating the hash and verifying the signature... The public key could be extracted from the dll or the dll could be reverse enginereed to remove the checks but this is still a good method to prevent totally clueless people from using your dll. btw MS does something like this :) On 7/1/05, Gaurav Kumar <gkverma () gmail com> wrote:
friends, We are developing a software that makes use of a COM DLL. The whole logic lies in the dll. The User Interface is in VC++. DLL exposes functions, application calls it and displays result. Now, we found that anybody can copy the DLL, register it and make use of those functions. Please guide us in making those functions secret or encrypted so that others cannt use our functions. thanks and regards, gaurav _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Re: plz suggest security for DLL functions Abhisek Datta (Jul 01)
- Re: plz suggest security for DLL functions Gaurav Kumar (Jul 01)
- Re: plz suggest security for DLL functions securitynews (Jul 01)
- Re: plz suggest security for DLL functions Valdis . Kletnieks (Jul 01)
- Re: plz suggest security for DLL functions Tim (Jul 01)
- Re: plz suggest security for DLL functions Michael Holstein (Jul 01)
- Re: plz suggest security for DLL functions Valdis . Kletnieks (Jul 01)
- Re: plz suggest security for DLL functions Michael Holstein (Jul 01)
- Re: plz suggest security for DLL functions Valdis . Kletnieks (Jul 01)
- Re: plz suggest security for DLL functions Gaurav Kumar (Jul 01)
- <Possible follow-ups>
- Re: plz suggest security for DLL functions upb (Jul 01)
- Re: plz suggest security for DLL functions Tim (Jul 01)
- Re: plz suggest security for DLL functions Michael Holstein (Jul 01)
- RE: plz suggest security for DLL functions Aditya Deshmukh (Jul 02)
- Re: plz suggest security for DLL functions Devdas Bhagat (Jul 01)
- Re: plz suggest security for DLL functions John LaCour (Jul 01)
- Re: plz suggest security for DLL functions Gaurav Kumar (Jul 01)
- Re: plz suggest security for DLL functions Sasha Goldshtein (Jul 02)
- RE: plz suggest security for DLL functions Aditya Deshmukh (Jul 02)
- Re: plz suggest security for DLL functions Kristian Hermansen (Jul 02)