Data safety service platform and safe data transmission method

The invention provides a data safety service platform. The platform comprises a safety server, an SaaS server and at least one client; the safety server is used for generating first secret keys for each client and the SaaS server and generating and allocating a second secret key for the SaaS server when receiving second secret key request information sent by the SaaS server; the SaaS server is used for authentication with each client by means of the first secret keys used by the corresponding client and the SaaS server respectively, requesting the second secret key from the safety server afterauthentication succeeds, encrypting the received second secret key and sending the encrypted second secret key to the client through the first secret key corresponding to the client and encrypting and transmitting business data between the client and the SaaS server by means of the second secret key. The invention further provides a safe data transmission method. By means of the platform and themethod, the safety of data