Contents Decryption Method Using DRM Card

摘要

Provided is a contents decoding method using a digital rights management (DRM) card (100). The method of decoding contents received from a host device (200) connected with a DRM card (100) storing DRM software includes: receiving encrypted contents information from the host device (200) and granting a contents decoding request; executing the DRM software corresponding to the contents information and decoding the received contents; and transmitting the decrypted contents to the host device (200), thereby using various pieces of contents regardless of a DRM system set in contents and easily upgrading DRM software to defend against hacking. Further, a host device (200) does not require DRM software, which facilitates mass production and reduces manufacturing costs.