Skip to main content

Developing Microsoft Lync Client with NTLMv2 security

First of all when I studied MS-SIP I was stuck. I don't get enough help from msdsn which is microsoft own social site for lync client developing.I post three post there and don't get any response.But after huge while with lots of efforts I was able to log in lync server by my own client.Now I will share the particular difficulties with everybody , which I have solved. So that no one stuck in this....I will write here slowly with description.

The topics will be..

1. urn:uuid generation
2. NT key generation
3. LM key generation
4. NT response generation
5. LM response generation
6. NTv2 response generation
7. LMv2 response generation
8. RC4K encryption
9. MD5 encryption
10. HMAC MD5 encryption
11. Base64 encoder/decoder
12. Binary to hexa
13. gssapi-data generation
14. Format of gssapi-data
15. response/signature generation
.
.
.
more 

Developing of Lync-client is complete .Now when I get the free time I will write the procedure here.

The link for Description of these part is Here
Labels:

Comments

  1. D. SchmidtFebruary 24, 2012 at 8:29 AM

    Robel, you said on stackoverflow:

    Ok...Thanks Everybody .My problem has been solved.It was gssapi-data and response generation problem. :)

    If anyone need help..Then contact with me for REGISTER Ok.

    I am stuck in the same place. Can you share the resolution to steps 13-15?

    ReplyDelete
  2. Robel SharmaMarch 6, 2012 at 2:35 AM

    Sorry I am late D.Schmidt, ok Today I will make a page describing on step 13-15.

    ReplyDelete
  3. UnknownSeptember 18, 2012 at 2:03 AM

    Hi Robel, I just read your article. Where is the step 1-12? I can't find it. Btw are you using xcode to build? thanks.

    ReplyDelete
    Replies
    1. Robel SharmaSeptember 18, 2012 at 9:09 PM

      @Alfreda: I have used vs 2010 for this project.My project is completed.As the work is official ,I represent tutorial without source.In future I will make some time to cover all of the 12 feature.

      Delete
  4. me-mirror-meNovember 6, 2012 at 12:39 AM

    Dear Robel, I'm trying to register into Lync server from my IP Phone (IP8850E) but it's not successful. Could u help me by making more detail tutorial. Thanks!

    My problem: http://social.technet.microsoft.com/Forums/en-US/exchangesvr3rdpartyappslegacy/thread/2620456e-e1cf-4d96-9a88-c09683f00b6e

    ReplyDelete

Post a Comment

Popular posts from this blog

UDP server client in c

Server #include <sys/types.h> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> #include <stdio.h> #include <unistd.h> #include <errno.h> #include <string.h> #include <stdlib.h> int main() {         int sock;         int addr_len, bytes_read;         char recv_data[1024],send_data[1024];         struct sockaddr_in server_addr , client_addr;         if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == -1) {             perror("Socket");             exit(1);         }         server_addr.sin_family = AF_INET;         server_addr.sin...
1 comment
Read more

[ASTERIK] configure: error: *** uuid support not found (this typically means the uuid development package is missing)

ISSUE: Build error on Asterik , when you want test webrtc feature :) checking for uuid_generate_random in -luuid... no checking for uuid_generate_random in -le2fs-uuid... no checking for uuid_generate_random... no configure: error: *** uuid support not found (this typically means the uuid development package is missing) Fix: This issue arises due to missing of UUID generator specified by rfc4122 . +Linux sudo apt-get install uuid-dev  @Unix yum -y install libuuid-devel Asterik comes with lots of helpful script available on - asterisk/contrib/scripts/ folder of your ASTERIK source. So just use the following command on UNIX console to run the asterik pre-requisite script. contrib/scripts/install_prereq install And you are done! configuring. Now -- Make Asterik.
9 comments
Read more

Video Conferencing Project in Java Source Code

My video conferencing project was completed as 300 project for 3rd year.It is not totally completed. There is some bug in here.To solve these bugs and to help other students this project is open.It is first try to make a project open source in this way so it can be modified.Any kind of question against this project will be answered. As this project was created in 3rd year 1st semester and now i nearly completed my BSc. so there will be little description about this.I will try to describe every class and function later when i get the chance.   For more details and how to build and run go to this link   in github.com . Latest code and binary release : VideoConference-v1.1 Older code and binary release : VideoConference-v1.0 Fix: 1. When in Video chat the Text chat option hanged for good. ################################################################################# FEATURE #############################################################################...
44 comments
Read more