PrivacyScanData/target/Hash/biometry_hash_5.py

def fp_search():
        
    """
    PyFingerprint
    Copyright (C) 2015 Bastian Raschke <bastian.raschke@posteo.de>
    All rights reserved.

    @author: Bastian Raschke <bastian.raschke@posteo.de>
    """


    ## Search for a finger
    ##

    ## Tries to initialize the sensor
    try:
        f = PyFingerprint('/dev/ttyUSB0', 57600, 0xFFFFFFFF, 0x00000000)

        if ( f.verifyPassword() == False ):
            raise ValueError('The given fingerprint sensor password is wrong!')

    except Exception as e:
        print('The fingerprint sensor could not be initialized!')
        print('Exception message: ' + str(e))
        exit(1)

    ## Gets some sensor information
    print('Currently stored templates: ' + str(f.getTemplateCount()))

    ## Tries to search the finger and calculate hash
    try:
        print('Waiting for finger...')

        ## Wait that finger is read
        while ( f.readImage() == False ):
            pass

        ## Converts read image to characteristics and stores it in charbuffer 1
        f.convertImage(0x01)

        ## Searchs template
        result = f.searchTemplate()

        positionNumber = result[0]
        accuracyScore = result[1]

        if ( positionNumber == -1 ):
            print('No match found!')
            exit(0)
        else:
            print('Found template at position #' + str(positionNumber))
            print('The accuracy score is: ' + str(accuracyScore))

        ## OPTIONAL stuff
        ##

        ## Loads the found template to charbuffer 1
        f.loadTemplate(positionNumber, 0x01)

        ## Downloads the characteristics of template loaded in charbuffer 1
        characterics = str(f.downloadCharacteristics(0x01))

        ## Hashes characteristics of template
        print('SHA-2 hash of template: ' + hashlib.sha256(characterics).hexdigest())

    except Exception as e:
        print('Operation failed!')
        print('Exception message: ' + str(e))
        exit(1)