Patents by Inventor Suvi Lehtinen

Suvi Lehtinen 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).

  • Method and apparatus for improving digital signatures
    Patent number: 9300472
    Abstract: Systems and methods are provided for enchancing pseudo random number generation to thwart various security attacks to a system that relies on digital signature security measures. For example, a random number may be bound to a message that is to be signed using a digital signature. Alternatively, a random number may be bound to a secret seed value, which may be updated subsequent to each signing. Alternatively still, a random number may be bound to both the message to be signed using a digital signature and a secret seed value.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: March 29, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Sampo Sovio, Martti Takala, Rauno Tamminen, Suvi Lehtinen
  • METHOD AND APPARATUS FOR IMPROVING DIGITAL SIGNATURES
    Publication number: 20130117569
    Abstract: Systems and methods are provided for enchancing pseudo random number generation to thwart various security attacks to a system that relies on digital signature security measures. For example, a random number may be bound to a message that is to be signed using a digital signature. Alternatively, a random number may be bound to a secret seed value, which may be updated subsequent to each signing. Alternatively still, a random number may be bound to both the message to be signed using a digital signature and a secret seed value.
    Type: Application
    Filed: September 30, 2011
    Publication date: May 9, 2013
    Applicant: NOKIA CORPORATION
    Inventors: Sampo Sovio, Martti Takala, Rauno Tamminen, Suvi Lehtinen