Currently cloud computing environments have come up with a serious problem known as security
which is in terms of Confidentiality of Data Integrity of the Message and Authenticity of the
users (CIA). Since user s personal data is being stored in an unencrypted format on a remote
machine operated by third party vendors who provide various services the impact of user s
identity and unauthorized access or disclosure of files are very high. Though we have various
techniques and algorithms to protect our data from hackers and intruders still cloud
environments are prone to other attacks. In this book a novel approach is implemented to
protect user s confidential data from third party service providers and also to make sure that
the data is not disclosed to any unauthentic user or the service provider even in any cloud
environments. This approach provides a multi-level security in three aspects: 1) User
authentication for authorization to enter the network 2) Image Sequencing password for
authentication wherein it is proved that the identity is original user and 3) RSA algorithm to
encrypt the data further for providing data integrity . Thus this approach provides an overall
security to the client s personal data and the major issue of confidentiality integrity and
authenticity is fully solved. Implemented results are represented to illustrate that our
approach has a reasonable performance.
