One of the best on-demand network access services to a significant shared pool of computer resources in the modern world is cloud computing. Many well-known economic advantages of cloud computing exist. Without having to own the underlying hardware, cloud computing enables users to take advantage of the combined benefits of three computing models for storage (Infrastructure as a Service), operating system (Platform as a Service), and software (Software as a Service) at their own premises. In spite of these financial advantages, public clouds are still not widely used, particularly by businesses. In terms of virtualized, geographically dispersed data centers, private clouds are now used by the majority of large enterprises, but they rarely serve as the primary source of resources. The main cause of this is the security risks associated with the current cloud infrastructures, which include server setup errors, software defects, power outages, hardware failures, malware, and insider threats. The goal of the research is to compare several biometric cryptography approaches for cloud security based on a variety of different criteria.