Patent ID: 8826027

Claim:
A method for generating confirmed transaction data by means of a personal computer having a monitor which is driven by a display preparation unit which from the CPU of the personal computer receives graphics data from which it generates pixel graphics, comprising the steps: providing a converter unit on the display preparation unit which is arranged to convert data to be interpreted into pixel values, providing a crypto unit on the display preparation unit for generating a signature for a record of data to be interpreted, providing a user input unit in order to pass user inputs to the crypto unit, starting an application in which transaction data are processed, pre-processing the transaction data as data to be interpreted on the personal computer under control of an application software, supplying the transaction data to be interpreted to the converter unit, converting the transaction data to be interpreted into pixel values by the converter unit, displaying the pixel values on the monitor, establishing a connection between a user input unit and the crypto unit through an interface of the display preparation unit or a connection between a user input unit and the crypto unit through the CPU of the personal computer, the connection allowing the input of a confirmation signal only by a user, inputting a confirmation signal by a user via a user input unit, generating a signature after the input of a confirmation signal by a user, and joining the signature and the transaction data into confirmed transaction data.