The processes of copy protection information stored in a medium carrying information.And to exchange information on protection of copy on a medium carrying information between a reading device and a device application.Copy protection system to a copy protection information stored in a medium carrying information and transmit it to an application device for reproduction and / or recording,Application to receive information from a reading device for reproduction and / or recording, and reproduction and / or recording information stored in a medium carrying information

摘要

"Protection processes of copying information stored in a medium carrying information.And to exchange information on protection of copy on a medium carrying information between a reading device and a device application.Copy protection system to a copy protection information stored in a medium with information, and.Reading devices for reading information from a medium carrying information and transmit it to an application device for reproduction and / or recording,Application to receive information from a reading device for reproduction and / or recording, and reproduction and / or recording information stored in a medium carrying information.The invention relates to a process for the protection of copy of information stored in an information carrier (1).The process enables a reading device (20) (for example, a DVD drive) and an application device (30) (e.g. an MPEG decoder) to exchange information on protection of copyOn the middle bearer of information (1) (for example a bearer of the optical recording such as a CD or DVD) and the content in the medium (1).The process is cryptographically secure, taking into account the situation where the reading device (20) and the application device (30) are connected to a rod opening (40) in a personal computer.Due to the nature of high volume of activation, the process can be implemented cheaply. The inventive process is robust against a so called attack of man in the middle.The invention also relates to a process for the exchange of information on protection of copy, a copy protection system and devices to comply with these processes.In particular, a reading device (20), an application device (30), and a device for reproduction and / or recording of information.