Patent ID: 8078541
Filing Date: 2011-12-13
Classification: G06F,G11B

Abstract:
1. An electronic musical apparatus for encrypting and recording music contents onto any one of plurality types of music content recording destinations, the electronic musical apparatus comprising: a storage device for storing a secret key and a plurality of target IDs each unique to one of the plurality types of music content recording destinations; a temporary memory device for storing common key information, security information, and music piece information; a memory device; and a processor coupled to the memory device, wherein the memory device stores executable instructions that when executed by the processor causes the processor to perform the operations of: determining a type of one of the music content recording destinations; retrieving the target ID of the determined type of the one of the music content recording destinations and the secret key from the storage device; retrieving the common key information, the security information, and the music piece information from the temporary memory device, wherein the common key information includes a common key, wherein the security information includes copyright information and a content ID; retrieving the content ID from the retrieved security information; encrypting the retrieved music piece information using the retrieved content ID; retrieving the common key from the retrieved common key information; generating a first key using the retrieved common key and the retrieved target ID; encrypting the retrieved security information with the first key; encrypting the retrieved common key information with the retrieved secret key; writing the encrypted security information, the common key information, and the music piece information to the determined type of the one of the music content recording destinations.