Data deduplication is a specific form of compression where redundant data is eliminated and has been used in cloud computing to improve storage utilization. In the deduplication process, duplicate data is deleted, leaving only one copy of the data to be stored. In the traditional encryption, different users required to encrypt their data with own keys. So different ciphertexts are produced, it makes difficult to deduplication. The new scheme has been proposed, convergent encryption, to protect the confidentiality of sensitive data while making deduplication is possible. In this paper, this convergent key managers efficiently and reliability. Firstly in this paper baseline approach is used in which a master key means the encrypted convergent key is kept individually and outsourcing them to cloud. Each user has a master key, increase the enormous number of keys. And users also want to protect the master key. A new approach is proposed in which Dickey is used in which user share key on multiple servers, he do not require manage the key. Ramp Secret Sharing scheme is used to implement Dickey in which each key distributed on multiple servers.