Sun-nam Lee
Samsung
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Publication
Featured researches published by Sun-nam Lee.
consumer communications and networking conference | 2009
Jun Yao; Sun-nam Lee; Su-Hyun Nam
Digital Rights Management (DRM) is indispensable to prevent various kinds of illegal content usage. However, personal privacy is vulnerable for disclosure when the detailed consumption reports are collected by the service provider to charge consumers. Usually those kinds of data could apparently render the work and rest schedule and reveal the hobby of certain customers. Although it is claimed that all of the private data should be protected without the fear for disclosure, it had better to avoid generating those sensitive records. Therefore, a new DRM solution is proposed to provide an obscure consumption report to the service provider with content classification and superdistribution while maintain the normal charge system. In addition, a novel key management scheme is presented to support the above solution. In this scheme, multiple encryption keys and decryption keys in the same content level are designed through a specific algorithm. Distributing a unique decryption key set to each user facilitates the tracing in case of deliberate key leakage and then assists realistic deployment of the DRM system.
international conference on consumer electronics | 2009
Sun-nam Lee; Hak-soo Ju; Bong-seon Kim
This paper provides a clone resistant mutual authentication between Secure Digital (SD) memory cards and host devices. The existing mutual authentication using one broadcast encryption can not resist cloning attacks. Therefore, a new clone resistant mutual authentication is proposed by using two broadcast encryption with the traitor tracing algorithm.
Archive | 2006
Sung-hyu Han; Bong-seon Kim; Myung-sun Daewoo Apt Kim; Young-Sun Yoon; Sun-nam Lee; Jae-Heung Lee
Archive | 2004
Sun-nam Lee
Archive | 2005
Sung-hyu Han; Myung-sun Kim; Young-Sun Yoon; Sun-nam Lee; Bong-seon Kim; Jae-Heung Lee
Archive | 2007
Ji-Young Moon; Il-jun Lee; Jun-bum Shin; Sun-nam Lee; Sang-Hong Lee
Archive | 2006
Sung-hyu Han; Myung-sun Kim; Young-Sun Yoon; Sun-nam Lee; Bong-seon Kim; Jae-Heung Lee
Archive | 2006
Jae-Heung Lee; Myung-sun Kim; Sung-hyu Han; Young-Sun Yoon; Sun-nam Lee; Bong-seon Kim
Archive | 2005
Myung-sun Kim; Su-Hyun Nam; Yong-Jin Jang; Sun-nam Lee; Jae-Heung Lee
Archive | 2006
Bong-seon Kim; Myung-sun Daewoo Apt Kim; Sung-hyu Han; Young-Sun Yoon; Sun-nam Lee; Jae-Heung Lee