Network protocols do not solely rely on the lower layers of the stack for security. Many of these protocols rely on a combination of layers to develop a more secure channel for data transmission. UDT, like other new next generation high speed protocols, relies on Transport, on IP, and on Network layers for data delivery and protection. However, like other existing protocols, UDT has a socket interface to link with API, a feature that makes it flexible in its implementation. This paper contends that UDT's user interface provides a means of protection by using another application service interface to cater for its security requirements. By implementing GSS-API, UDT can achieve authentication, confidentiality, and integrity during data transmission. This work, provides another way of securing high speed network protocols such as UDT when implemented in various network environments.