Patents by Inventor Peter Rostin

Peter Rostin 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 seed generation protocol
    Patent number: 7979707
    Abstract: Techniques for secure generation of a seed for use in performing one or more cryptographic operations, utilizing a seed generation protocol carried out by a seed generation client (110c) and a seed generation server (110s). The seed generation server (110s) provides a first string to the seed generation client (110c). The seed generation client (110c) generates a second string, encrypts the second string utilizing a key (216), and sends the encrypted second string to the seed generation server (110s). The seed generation client (110c) generates the seed as a function of at least the first string and the second string. The seed generation server (110s) decrypts the encrypted second string (222) and independently generates the seed as a function of at least the first string and the second string.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: July 12, 2011
    Assignee: EMC Corporation
    Inventors: Peter Röstin, Magnus Nyström, William M. Duane
  • System and method for certificate exchange
    Patent number: 7461250
    Abstract: In an embodiment of a system and method according to the present invention, a chain of one or more certificates certifying a principal's public key is exchanged for a single substitute certificate. The substitute certificate is used as a replacement for the certificate chain. The substitute certificate is useful for authentication of the principal. In one embodiment, an authentication server exchanges the certificates. The substitute certificate is signed by the authentication server and used for authentication and communication with principals that have knowledge of and trust the authentication server. In one embodiment the substitute certificate also includes the principal's access information.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: December 2, 2008
    Assignee: RSA Security, Inc.
    Inventors: William M. Duane, Peter Röstin
  • System and methods for maintaining and distributing personal security devices
    Patent number: 7111172
    Abstract: This invention relates to methods and apparatus for securely accessing and providing information including the use of a personal security device on a client where the client is subject to compromise.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: September 19, 2006
    Assignee: RSA Security Inc.
    Inventors: William Duane, Peter Röstin
  • Secure seed generation protocol
    Publication number: 20060177056
    Abstract: Techniques for secure generation of a seed for use in performing one or more cryptographic operations, utilizing a seed generation protocol carried out by a seed generation client (110c) and a seed generation server (110s). The seed generation server (110s) provides a first string to the seed generation client (110c). The seed generation client (110c) generates a second string, encrypts the second string utilizing a key (216), and sends the encrypted second string to the seed generation server (110s). The seed generation client (110c) generates the seed as a function of at leas the first string and the second string. The seed generation server (110s) decrypts the encrypted second string (222) and independently generates the seed as a function of at least the first string an the second string.
    Type: Application
    Filed: July 9, 2004
    Publication date: August 10, 2006
    Inventors: Peter Rostin, Magnus Nystrom, William Duane