Patents by Inventor Seong Hun Paeng

Seong Hun Paeng 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).

  • Public key cryptosystem using finite non abelian groups
    Patent number: 7251325
    Abstract: The present invention relates to a method of encryption and decryption comprises the steps of: selecting a generator and a first element of a first non abelian group, respectively, computing a first inner automorphism which is used as a first public key, and generating a second public key by using a secret key being a first integer and the first public key; expressing a plain text by a product of generator of a second non abelian group, computing a second inner automorphism by using an arbitrary second integer and the first public key, computing a third inner automorphism by using the second integer and the second public key, and generating a ciphertext by using the third inner automorphism; and generating a fourth inner automorphism by using the secret key and the second inner automorphism, and decrypting the ciphertext by using the fourth inner automorphism.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: July 31, 2007
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Seong Hun Paeng, Kil Chan Ha, Jae Heon Kim
  • Public key cryptosystem using finite non abelian groups
    Publication number: 20040156498
    Abstract: The present invention relates to a method of encryption and decryption comprises the steps of: selecting a generator and a first element of a first non abelian group, respectively, computing a first inner automorphism which is used as a first public key, and generating a second public key by using a secret key being a first integer and the first public key; expressing a plain text by a product of generator of a second non abelian group, computing a second inner automorphism by using an arbitrary second integer and the first public key, computing a third inner automorphism by using the second integer and the second public key, and generating a ciphertext by using the third inner automorphism; and generating a fourth inner automorphism by using the secret key and the second inner automorphism, and decrypting the ciphertext by using the fourth inner automorphism.
    Type: Application
    Filed: March 18, 2004
    Publication date: August 12, 2004
    Inventors: Seong Hun Paeng, Kil Chan Ha, Jae Heon Kim