Abstract: A playing method of digital right managing multimedia is disclosed, in which the files of DRM multimedia to be played take a Page as a playing basic unit, when the operation of fast-forward/fast-reverse is triggered, the method comprises: determining time of fast-forward/fast-reverse; determining number of Pages of fast-forward/fast-reverse based on the time of fast-forward/fast-reverse; determining Page of target playing position based on the number of Pages of fast-forward/fast-reverse; calculating key stream of the Page of the target playing position based on prestored key data of the first Page; decrypting ciphertext of the Page of the target playing position based on the calculated key stream of the Page of the target playing position; and decoding the decrypted Page of the target playing position and playing the decrypted Page of the target playing position. A playing device is also provided.

Abstract: A playing method of digital right managing multimedia is disclosed, in which the files of DRM multimedia to be played take a Page as a playing basic unit, when the operation of fast-forward/fast-reverse is triggered, the method comprises: determining time of fast-forward/fast-reverse; determining number of Pages of fast-forward/fast-reverse based on the time of fast-forward/fast-reverse; determining Page of target playing position based on the number of Pages of fast-forward/fast-reverse; calculating key stream of the Page of the target playing position based on prestored key data of the first Page; decrypting ciphertext of the Page of the target playing position based on the calculated key stream of the Page of the target playing position; and decoding the decrypted Page of the target playing position and playing the decrypted Page of the target playing position. A playing device is also provided. Therefore, the playing effect can be improved.