Method for implementing encryption and device thereof

摘要

The present invention provides an encryption method in which the encryption device stores data to be encrypted received via the input/output interface in its own memory, converts the data to be encrypted in the memory into a format required by the output device and transmits the converted data to the output device via the management interface, and the output device outputs the received information. The present invention also provides an encryption device for implementing the above method. The encryption device determines whether confirmation information has been received from a management interface, encrypts the data to be encrypted in the memory if the answer is positive, while performs no encryption or prompting to input correct confirmation information if the answer is negative. With the present invention, the user is allowed to view the contents to be actually encrypted, thereby avoiding such a case as signature counterfeiting or tampering.

主权项

1. An encryption method for an encryption device including an input/output interface, an execution unit, a management interface and an output device, the method comprising the steps of:
a. receiving, by the execution unit, data to be encrypted via the input/output interface, storing the data to be encrypted in a memory of the execution unit, converting the stored data to be encrypted into a converted format as required by the output device, forwarding the converted format to the output device via the management interface, and providing, by the output device, the converted format to a user to review what will be encrypted; b. receiving confirmation information through the management interface after determining the converted format is the content to be encrypted so as to allow the execution unit to encrypt the stored data to be encrypted; and c. encrypting, by the execution unit, the stored data to be encrypted after receiving the confirmation information, otherwise, prompting to input correct confirmation information.