Patents by Inventor Maeng Sung

Maeng Sung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080085005
    Abstract: A method and apparatus are provided for broadcast encryption using a bilinear map, defined on elliptic curves. The method for the broadcast encryption using the bilinear map includes generating a first random number for all nodes except for a plurality of leaf nodes of an a-ary tree structure, configured in a plurality of depths, generating ‘a’ pieces of a second random number to allocate the generated second random number to all nodes except for a root node of the a-ary tree structure, generating public key information by applying the second random number to a second cyclic group, and generating a secret key group by applying the first and the second random numbers to a first cyclic group.
    Type: Application
    Filed: March 20, 2007
    Publication date: April 10, 2008
    Inventors: Bae Jung, Maeng Sung, Weon iI Jin, Hee Kim