Access control and key management techniques for secured communication in cloud

Abstract

Nowadays, group oriented applications such as video-conferencing, TV over internet, Video on demand and e-learning has been developed which acquire multicast communication. When applications need the support of multicasting, the content is shared with the group of members. The members of the group should be able to communicate easily and in a secure manner. To provide data security, there is a need to encrypt the content and send to all group members. Therefore, to encrypt and decrypt the data, a secret or group key needs to be distributed to all group members. Only the members receive the group key can able to decrypt the data. However, the key generation and key distribution among group members is a very challenging issue. In recent years, there are many research works has been carried out in key generation and distributing the same to group members. The security in multicast communication is still a challenging and vulnerable to threats. Therefore, it is important to propose a secure and scalable key generation and key distribution mechanism which suits multicast communication. Cloud computing has been emerged as a platform to share data among group members in a multicast communication. The data security in cloud environment is another big challenging issue as the data is protected by he third party provider. The basic mechanism to protect the data in cloud is to encrypt and store in cloud. But when there is a need to share the data to group of members, secret key needs to generated and distributed to cloud users in a secure way. Most of the key challenges identified in the most existing work are with data security in cloud. A new key management scheme supporting multicast communication in cloud environment needs to be proposed for secure data communication newline