NKrypts proposed R&D project is the development a prototype mesh network cryptographic solution for Optical Intersatellite Links (OISL) in low earth orbit (LEO) with low size, weight and power (SWaP). The NKrypt team has decades of experience in secure communications, network security, key management, multi-level security, hardware development, Trusted Computing deployments of Trusted Platform Modules, Self Encrypting Drives, programmable hardware cryptographic module integrated circuits, and Intrusion Detection solutions. Further, we are experts in NSAs Commercial Systems for Classified (CSfC) architecture and implementations as well as traditional space assessment systems, and semiconductor technologies. Our solution will demonstrate a feasible architecture and preliminary design for an automated initial encryption handshake using NSA test keys, maintaining encryption link, and encrypting and decrypting data with a throughput of 50 Gbps per channel for a minimum of 6 channels.