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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 6738478 | Power signature attack resistant cryptography This invention provides a method of computing a multiple k of a point P on an elliptic curve defined over a field, the method including the steps of representing the number k as binary vector k1, forming an ordered pair of point P1 and P2 | 05/18/2004 |
| 6563928 | Strengthened public key protocol A cryptosystem utilizes the properties of discrete logs in finite groups, either in a public key message exchange or in a key exchange and generation protocol. If the group selected has subgroups of relatively small order, the message may be exponentiated... | 05/13/2003 |
| 6430690 | Secure one-way authentication communication system A protocol for authenticating at least one of a pair of first and second correspondents C and T in a data communication system, the method comprising the steps or storing a public key in the first correspondent C; computing a shared secret by the second c... | 08/06/2002 |
| 6424712 | Accelerated signature verification on an elliptic curve A public key encryption system exchanges information between a pair of correspondents. The recipient performs computations on the received data to recover the transmitted data or verify the identity of the sender. The data transferred includes supplementa... | 07/23/2002 |
| 6349318 | Arithmetic processor for finite field and module integer arithmetic operations The present disclosure provides an arithmetic processor having an arithmetic logic unit having a plurality of arithmetic circuits each for performing a group of associated arithmetic operations, such as finite field operations, or modular integer operatio... | 02/19/2002 |
| 6336188 | Authenticated key agreement protocol A key agreement method between a pair of entities i and j in a digital communication system, wherein each the entity has a private and corresponding public key pair Si,Pi and Sj,Pj respectively and the system, h... | 01/01/2002 |
| 6230179 | Finite field multiplier with intrinsic modular reduction A finite field multiplier with intrinsic modular reduction includes an interface unit (1208) that translates an n bit wide data path to a m bit wide data path where n is less than m. Also included is a finite field data unit (1204) with m bit wide registe... | 05/08/2001 |
| 6212281 | Digital signature protocol A digital signature protocol generates a signature component using a hash of an encrypted message. The component and encrypted message form a signature pair that is forwarded to a recipient. The encryption message is used to retrieve the encryption key at... | 04/03/2001 |
| 6195433 | Private key validity and validation A method of generating a private key for use in a public key data communication system implemented between a pair of correspondents is disclosed. The method comprises the steps of generating a random number for use as a private key and testing the number ... | 02/27/2001 |
| 6178507 | Data card verification system A method for verifying the authenticity of messages exchanged between a pair of correspondents in an electronic conducted over a data transmission system where the correspondents each include respective signing and verifying portions of a first signature ... | 01/23/2001 |
| 6078667 | Generating unique and unpredictable values An integer for a private key is generated utilising a pair of components that are combined in a fixed predictable manner. The first component is generated from a sequencer such as a counter that generates non-repeating distinct value and the second compon... | 06/20/2000 |
| 6049815 | Method and apparatus for finite field multiplication A method of computing the product D of two finite field elements B and C modulo an irreducible polynomial f1 (x), wherein the finite field elements B and C are represented in terms of an optimal normal basis (ONB) of Type 1 over a field F2... | 04/11/2000 |
