Hello,
I am a computer engineer;
I glad to do your job.
I am an expert in Information Security, Web Security, Network Security, also web programming (PHP, ASP) , Programming (JAVA, jsp, C#, ..) , node.js, database(mysql), web service etc...
I have do a lot of projects of One Time Password(OTP) in C#..
I will give you the best work .......
Only chat with me to discuss more details my offer is best to you with my experts and commitment...
Waiting your acceptance to start working..
I am very interested in your project and wish to do it ..
Best Regards