RE: Cisco Access Token (CAT)

[Finny <Finny@xxxxxxxxxxxxxxxxxxx>]

Title: cryptoEPPwdHash Token

Hi

    I meant the problem with my challenge calculation, not with the GK.With open phone and GK it works fine.

Please help me out.

 

Thanks

-Finny

-----Original Message-----
From: openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx [mailto:openh323gk-users-admin@xxxxxxxxxxxxxxxxxxxxx]On Behalf Of Finny
Sent: Friday, September 17, 2004 7:37 PM
To: 'openh323gk-users@xxxxxxxxxxxxxxxxxxxxx'
Subject: Cisco Access Token (CAT)

Hi All,

         I'm working in H235 CAT implementation.The RRQ is rejected by the GK due to the mismatch in challenge.

I used OpenSSL library to generate digest(MD5).Please look at my implemenation. If any fault is there please let me know

 

    Pass - Character Pointer--------gateway123

    timeStamp - Four Byte---------1095444951

    ran            - unsigned char -----25

 

                   sprintf(Buffer,"%s%u%d", Pass,timeStamp,ran);---------  Output :gateway123109544495125

 

                  encodedLen=strlen(Buffer);
                  MD5Digest(Buffer,encodedLen,Digest); 

This Digest is put in the challenge filed.

 

Is this implementaion is correct????

 

Thanks

 

-Finny