Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1997-10-21
1999-12-21
Beausoliel, Jr., Robert W.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
709229, 709250, 380 4, H04L 900
Patent
active
060063327
ABSTRACT:
A system is provided for controlling access to digitized data. An unsecure client is provided with a launch pad program which is capable of communicating with a secure Rights Management (RM) server. The launch pad program provides an indicator to a public browser, used by the unsecured client, which acknowledges when a rights management controlled object is detected. Once a rights management object is detected, operational control is transferred from the public browser to the launch pad. The launch pad will communicate with the secured RM server and request the digitized data corresponding to the controlled object. In response thereto, the RM server identifies the type of data being requested, i.e. text, audio, video, etc. and transmits this information to the launch pad. The launch pad then searches whether a secure RM browser appropriate to handle this data is resident on the client. When it is determined that no RM browser is resident, the launch pad requests an appropriate browser from the RM server. Based on this request an appropriate RM browser is obtained and authentication and security information are inscribed. Thereafter the RM browser is transmited to the client. Prior to use, an authentication procedure is undertaken between the launch pad and the RM server to authenticate the RM browser. If authentication does not occur within a predetermined time period, the browser expires.
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Alrashid Tareq M.T.
Barker James A.
Christian Brian S.
Cox Steven C.
Rabne Michael W.
Baderman Scott T.
Beausoliel, Jr. Robert W.
Case Western Reserve University
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