Cloud computing is the way of providing computing resources in the form of service rather than a product, and utilities are provided to the users over the Internet. The main goal of cloud computing is to secure and protect data and processes which come under the property of users. The security in networked environment, especially in cloud computing, is an exclusive research area that is attracting several research communities. Storage of data and security using standard cryptographic algorithms has become an important topic of research. Cryptography is widely used to protect data from unauthorized access and modifications. In this paper, a new symmetric algorithm is proposed. Binary CD&M encryption algorithm is a simple symmetric key cryptography algorithm for enhancing security of small amount of data in cloud computing environment.

Key agreement is a procedure of creating a secure environment between communicating partiesA cloud dynamically delivers all possible services like data storage, security, etc. over the Internet that is based on demand (Hassan et al., 2010). Cloud computing is an Internet-based computing where shared resources, software and information are readily available on demand. Cloud computing is a type of computing in which ITrelated capabilities are provided ‘as a service’ to end users. Users can access technology without knowledge of experience or even control over the infrastructure that supports them. The ‘cloud’ in cloud computing can be defined as the set of hardware, networks, storage, services, and interfaces that combine to deliver aspects of computing as a service (Tejas and Ashish, 2012). These services are classified into three types: Software as Service (SaaS), Platform as Service (PaaS) and Infrastructure as Service (IaaS).

Information Technology Journal, Cloud security, Cryptography, Confidentiality, Symmetric key encryption, Asymmetric key encryption, Binary CD&M Encryption, Enhancing Security in Cloud .