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METHOD FOR GENERATING RIGHTS OBJECT AND DEVICE TO PERFORM THE METHOD, METHOD FOR TRANSMITTING RIGHTS OBJECT AND DEVICE TO PERFORM THE METHOD, AND METHOD FOR RECEIVING RIGHTS OBJECT AND DEVICE TO PERFORM THE METHOD
METHOD FOR GENERATING RIGHTS OBJECT AND DEVICE TO PERFORM THE METHOD, METHOD FOR TRANSMITTING RIGHTS OBJECT AND DEVICE TO PERFORM THE METHOD, AND METHOD FOR RECEIVING RIGHTS OBJECT AND DEVICE TO PERFORM THE METHOD
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机译:生成权限对象和设备的方法,方法,传输权限对象和设备的方法,以及接收权限对象和设备的方法
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摘要
A method for transmitting a Rights Object (RO) includes generating a password key by encrypting a password, generating the RO using the password key, and transmitting the RO from a first device to a second device. The second device and the first device share the password and the second device generates the password key using the same encryption method as that used by the first device to generate the password key. The second device decrypts a Message Authentication Code (MAC) key and a Rights Object Encryption Key (REK) using the password key, decrypts a Content Encryption Key (CEK) using the decrypted REK, and verifies integrity of the RO using the decrypted MAC key. The second device can use and/or access content associated with the RO using the decrypted CEK. The CEK may be generated by the first device or may be the CEK from a Rights Issuer.
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