Abstract
With the development of unmanned platforms, there are large numbers of unmanned aerial vehicles(UAVs), due to UAVs’ new features such as lightweight, high speed mobility and heterogeneous, UAVs are facing great challenges of data security. As a key means to protect data security, cryptography is of great significance. Traditional mature and complete cryptography schemes need to be adjusted to meet the new features of UAVs. We start with the security challenges faced by UAV architecture, then analyze the cryptographic technologies that can be applied. By comparing with existing researching schemes, we shows the advantages of different cryptographic technologies in the security protection of unmanned platforms and looks forward to the future.