Big data storage method

The invention provides a kind of big data storage method, this method includes：Cloud platform server is that user is based on one identity of distribution of its network logical address, the public key of user is exported from the identity of user, and the key parameter by previously generating calculates the private key for producing user, and generate for it and distribute the key pair corresponding to the identity, validated user is arranged to system interior joint；In user's accessing system, user is verified by way of readjustment, when active user can receive the connection to network logical address, it is the rightful holder of the address to determine the user.The method of the present invention can efficiently solve the problem of disabled user is attacked by network logical address, the safety of safeguards system, suitable for cloud storage system.