Nec corporation (20240430101). DIGITAL SIGNATURE SYSTEM, DIGITAL SIGNATURE METHOD
DIGITAL SIGNATURE SYSTEM, DIGITAL SIGNATURE METHOD
Organization Name
Inventor(s)
Toshiyuki Isshiki of Tokyo (JP)
DIGITAL SIGNATURE SYSTEM, DIGITAL SIGNATURE METHOD
This abstract first appeared for US patent application 20240430101 titled 'DIGITAL SIGNATURE SYSTEM, DIGITAL SIGNATURE METHOD
Original Abstract Submitted
in a digital signature system, a first processing apparatus performs processing comprising: receiving a first parameter generated using a first signing key and first biometric information to store the first parameter in a storage; receiving a second parameter generated using a second signing key and second biometric information to calculate a key difference between the first signing key and the second signing key from the first parameter and the second parameter; and calculating a value corresponding to a difference between the first biometric information and the second biometric information using the first parameter, the second parameter, and the key difference to verify whether or not the value satisfies a predetermined specified condition.
