System and method for authenticated encryption based on device fingerprint

A method for encryption and decryption, the method comprising:

• obtaining, by a backend server, a root secret code from a root secret server;
• decoding, by the backend server in response to receiving an encoded data packet from a user computing device, the encoded data packet to obtain an encrypted data packet;
• calculating a data key using the root secret code obtained from the root secret server and a device fingerprint, a name of the application, and a timestamp from the encoded data packet;
• and
• decrypting, by the backend server, the encrypted data packet using the calculated data key,
• wherein the user computing device is configured to send the device fingerprint of the user computing device to the root secret server, calculate the data key using the device secret code received from the root secret server, the device fingerprint, the name of the application generating the data, and the timestamp of generating the data, encrypt the data using the data key to form the encrypted data, encode the encrypted data with the device fingerprint, the name of the application, the timestamp to form the encoded data packet, and send the encoded data packet to the backend server;
• and
• wherein the root secret server is configured to calculate, in response to receiving the device fingerprint, the device secret code using the device fingerprint and the root secret code, and send the device secret code to the user computing device.

A system for encryption and decryption, the system comprising:

• a user computing device, a root secret server having a root secret code, and a backend server, wherein:
• the root secret server is configured to:
• calculate a device secret code using a device fingerprint sent by the user computing device and the root secret code;
• and
• send the device secret code to the user computing device;
• the user computing device is configured to:
• send the device finger print to the root secret server;
• calculate a data key using the device secret code received from the root secret server, the device fingerprint, a name of an application generating data, and a timestamp of generating the data;
• encrypt the data using the data key to form encrypted data;
• encode the encrypted data with the device fingerprint, the name of the application, the timestamp to form an encoded data packet;
• and
• send the encoded data packet to the backend server;
• the backend server is configured to:
• obtain the root secret code from the root secret server;
• in response to receiving the encoded data packet:
• decode the encoded data packet to obtain the encrypted data packet, calculate the data key using the root secret code obtained from the root secret server and the device fingerprint, the name of the application, and the timestamp from the encoded data packet;
• and
• decrypt the encrypted data packet using the calculated data key.