Patent ID: 9160972
Filing Date: 2015-10-13
Classification: H04L,H04N

Abstract:
1. A method, comprising: dividing streaming data into multiple partial data items; generating a plurality of information based on the multiple partial data items, the plurality of information respectively indicating a characteristic of a corresponding partial data item; first associating a first digital signature of a signer with the plurality of information; extracting at least one partial data item from the multiple partial data items; second associating a second digital signature with at least one information generated by the generating corresponding to at least one partial data item extracted by the extracting among the plurality of information, the second digital signature indicating an extractor that has operated the extracting; and storing new streaming data including the at least one partial data item extracted by the extracting, the new streaming data being stored independently of the streaming data and being replayable independently of the streaming data.