Cloud computing is becoming next stage platform in the advancement of the internet. Cloud computing is the most important parameter of distributed computing. Cloud computing ore use and its easily available services at low cost. Cloud computing provide data security. Now-a-days, data security and confidentiality is the major issues. In this paper, focus on solve the security and confidentiality problem. Homomorphic encryption is the best solution of this problem. In this paper, new technique homomorphic apply and solve the security and confidentiality problem.