Secure Threshold Cryptography Based Data security system in multi-owner architecture

computer engineering

Cloud computing has became a very popular service which can offer number of online services as well as online storage of data at low price. Other than these highly advance service there are number challenges like data confidentiality, data integrity and access control of data. There are some approaches which are previously suggested for data security but they aren't that reliable and feasible as in there are chances of data violation due to collision attack and heavy computation. To minimize this issues a proposed system this uses threshold cryptography in which data owner Divides users in groups and gives a single key to each user group for decryption of data, and each user in the group shares the parts of the key. There are multiple owners of keys in this proposed system. There is a onetime session password (OTP) which is shared between user group and data owner for authentication of users. The key is encrypted using Deffie-Hellman algorithm which provides us secure transaction of file.

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