Patents by Inventor Yuuchi Futa

Yuuchi Futa 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).

  • Parameter generation apparatus, encryption system, decryption system, encryption apparatus, decryption apparatus, encryption method, decryption method, and program thereof
    Publication number: 20060239459
    Abstract: A parameter generation apparatus for generating parameters causing no decryption error for an NTRU cryptosystem so that an encrypted communication can be carried out between an encryption apparatus and a decryption apparatus in a secure and reliable manner, is comprised of: a provisional parameter generation unit operable to generate a set of provisional parameters that do not cause any decryption errors, based on error condition information that is provided in advance, said error condition information indicating a condition for causing no decryption error; and an output parameter generation unit operable to generate an output parameter that does not cause any decryption errors, using said set of provisional parameters, based on a lattice constant that is calculated from said set of provisional parameters.
    Type: Application
    Filed: April 14, 2004
    Publication date: October 26, 2006
    Inventors: Masato Yamamichi, Masami Yamamichi, Satomi Yamamichi, Keiko Yamamichi, Yuuchi Futa, Motoji Ohmori, Makoto Tatebayashi