×

Signature generation apparatus, signature method, non-transitory computer readable medium storing signature generation program

  • US 8,966,264 B2
  • Filed: 04/06/2011
  • Issued: 02/24/2015
  • Est. Priority Date: 05/28/2010
  • Status: Active Grant
First Claim
Patent Images

1. A signature generation apparatus comprising:

  • a plurality of basic operation execution units each executing a basic operation included in a signature generation procedure; and

    a whole operation controller connected to the plurality of basic operation execution units to control operations in the basic operation execution units and monitor operation states of the basic operation execution units,wherein when there is a basic operation execution unit among the plurality of basic operation execution units which is executing a secret operation which uses data to be concealed as an argument, the whole operation controller causes basic operation execution units other than the basic operation execution unit to simultaneously execute a random number operation which uses a random number originally used for signature generation as an argument.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×