Challenge response system and method

Provides a searching response capacitor, comprising a authenticating the device for requesting the device realizes the authentication. The authentication device for flowing to the searching for requesting and output end. Request for transmitting device and inquire request a hash combination of password device for providing user, and further and inquiry to the password the combination of hash based on hash, so that the number of generating is used to the password for providing user end of the encryption the support key. The user according to encrypt providing password substrate-processing to authenticating apparatus, and a responses for searching output end. Authentication device to generate the authentication key and on hash password a hash of combined saving by for searching. Use authentication key deciphers responds, so that the number of the restoring user to provide the password. And the user providing password a hash with a hash matching on password saving, and authenticated request the device, and authenticated the device with password.