FIELD: calculating; counting.
SUBSTANCE: invention relates to the security of cloud services. Agent installed on a user terminal to provide a secure cloud service contains a header generator for generating headers having a random value for encrypting a file uploaded to a cloud server, upon receipt of this file from the user terminal, when the security detecting device detects the device, the session key generator is designed to generate session keys that create a session with a security token device that encrypts the generated header or decrypts the header of the file downloaded from the cloud server, and when the event detection unit determines that the security token is disabled during the specified session, automatic encryption or decryption is cancelled and files are deleted to avoid synchronization with the cloud server.
EFFECT: technical result is to improve the security of cloud services.
6 cl, 11 dwg
