首页>
外国专利>
Method for protection of data on magnetic recording medium, method for the read-out of data protected on the recording medium, technical means of authorization of access to the data, coding-verifying key as well as a system containing the protected data
Method for protection of data on magnetic recording medium, method for the read-out of data protected on the recording medium, technical means of authorization of access to the data, coding-verifying key as well as a system containing the protected data