Invention Grant
US09473464B2 Key management for mixed encrypted-unencrypted content 有权
混合加密未加密内容的密钥管理

Key management for mixed encrypted-unencrypted content
Abstract:
Based on a request for media content from a media client, a device identifies one or more: segments of encrypted media content; encryption keys for decrypting the segments of encrypted media content; and segments of unencrypted media content. The device determines an order for sending the one or more segments of encrypted and unencrypted media content. The device sends, to the media client, a segment of encrypted media content, according to the order for sending, along with an encryption key for decrypting the segment of encrypted media content being sent. The device sends, to the media client, a segment of unencrypted media content, according to the order for sending, along with a subsequent encryption key for decrypting a subsequent segment of encrypted media content to be sent after the segment of unencrypted content. The subsequent encryption key permits the media client to decrypt the subsequent segment of encrypted media content.
Public/Granted literature
Information query
Patent Agency Ranking
0/0