Patents by Inventor Garret L. Simpson

Garret L. Simpson 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).

  • Secure mapping and aliasing of private keys used in public key cryptography
    Patent number: 6553493
    Abstract: A method (200) for assigning a key pair to an entity, such as a certification authority (CA 102), includes the following steps. A key pair is generated (210). It includes a private key and a public key which form a key pair for use in public-key cryptography. The key pair is stored (220) in a cryptographic signing unit (CSU 140). The CSU (140) is then activated (230). A request for a key pair is received (240) from the entity (102). Responsive to the request, the key pair is assigned (250) to the entity (102). In a preferred embodiment, an identifier (312) is assigned to the key pair and preferably is different from identifiers assigned to other key pairs stored in the CSU (140). The identifier (312) is then included in a digital certificate (300) issued to the entity (102).
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: April 22, 2003
    Assignee: VeriSign, Inc.
    Inventors: Kenneth K. Okumura, Garret L. Simpson, Jason N. Paul, Binh P. Le