Set verification device and method

The set of validation apparatus and method is disclosed. Set verification method of the present invention receives a plurality of public keys and a verification value of the step of generating a plurality of verification values, of public deployed the multiple keys corresponding to the public keys corresponding to the plurality of secret keys, the secret keys and the step of computing a first set of verification value based on the verification value of the received public keys, the method comprising: calculating a second set of verification values ​​on the basis of the secret keys and the verification value and the first set of verification value characterized in that it comprises the step of determining that the second set of verification values ​​and the first set of verify compare the value of said second set of verification values ​​and the set values ​​equal to the received verification of the public keys verified. Set, validation set, exponentially, electronic signatures, private keys, public key