Cloud computing is an Internet-based computing, where shared

resources, software and information, are provided to computers

and devices on-demand. It provides people the way to share

distributed resources and services that belong to different

organization. Since cloud computing uses distributed resources

in open environment, thus it is important to provide the security

and trust to share the data for developing cloud computing

applications. In this paper we assess how can cloud providers

earn their customers’ trust and provide the security, privacy and

reliability, when a third party is processing sensitive data in a

remote machine located in various countries? A concept of utility

cloud has been represented to provide the various services to the

users. Emerging technologies can help address the challenges of

Security, Privacy and Trust in cloud computing.