Data encryption uploading method applied to cloud platform

Abstract

The invention relates to the technical field of data security, and particularly discloses a data encryption uploading method applied to a cloud platform, which comprises the following steps: a data owner divides original data into a plurality of data blocks through a client, generates a random initialization vector for each data block, generates a first secret key by using a symmetric encryption algorithm, and uploads the first secret key to the cloud platform; encrypting each data block by using the first key and the corresponding random initialization vector; the client uses an asymmetric encryption algorithm to generate a pair of public key and private key for a data owner to use, the private key is stored in a local memory, and the public key is used to encrypt the first secret key; the client uploads the encrypted first key, the plurality of encrypted data blocks and the random initialization vector corresponding to each data block to a server; and the server associates and stores the received data to a database. According to the invention, the security of cloud platform data uploading and user key management can be improved.

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