06385596 is referenced by 982 patents and cites 3 patents.

A computer implemented online music distribution system provides for the secure delivery of audio data and related media, including text and images, over a public communications network. The online music distribution system provides security through multiple layers of encryption, and the cryptographic binding of purchased audio data to each specific purchaser. The online music distribution system also provides for previewing of audio data prior to purchase. In one embodiment, the online music distribution system is a client-server system including a content manager, a delivery server, and an HTTP server, communicating with a client system including a Web browser and a media player. The content manager provides for management of media and audio content, and processing of purchase requests. The delivery server provides delivery of the purchased media data. The Web browser and HTTP server provide a communications interface over the public network between the content manager and media players. The media player provides for encryption of user personal information, and for decryption and playback of purchased media data. Security of purchased media data is enhanced in part by the use of a personal, digital passport in each media player. The digital passport contains identifying information that identifies the purchaser, along with confidential information, such as credit card number, and encryption data, such as the media player's public and private keys. The media player encryption data is used to encrypt purchased media data, which is decrypted in real time by the media player. The media player also displays confidential information, such as the purchaser's credit card number, during playback.

Title
Secure online music distribution system
Application Number
9/20025
Publication Number
6385596 (B1)
Application Date
February 6, 1998
Publication Date
May 7, 2002
Inventor
Susan A Cannon
San Jose
CA, US
Steven T Ansell
Fremont
CA, US
Andrew R Cherenson
Los Altos
CA, US
Philip R Wiser
Redwood City
CA, US
Agent
James D Ivey
US
Assignee
Liquid Audio
CA, US
IPC
G06F 17/60
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