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#, ..), Mobile ( android ,J2ME) , node.js, database(MySQL), web service (soap, web api ), CMS ( WordPress) and Framework ( code igniter and Laravel)...
you will get your encrypted video file to be encrypted while playing using c# and memory stream
I will give you the best solution due to my experts in c# and cryptography and security
Only chat with me to discuss more details .. I will show you a demo before you have to accept my offer
My offer is best to you with my experts and commitment ...
I am very interested in your project and wish to do it ..
Best Regards