Classe « Chaff »

Méthode Crypto.Protocol.Chaffing.Chaff.chaff

Signature de la méthode chaff

def chaff(self, blocks) 

Description

chaff.__doc__

chaff( [(serial-number:int, data:string, MAC:string)] )
        : [(int, string, string)]

        Add chaff to message blocks.  blocks is a list of 3-tuples of the
        form (serial-number, data, MAC).

        Chaff is created by choosing a random number of the same
        byte-length as data, and another random number of the same
        byte-length as MAC.  The message block's serial number is
        placed on the chaff block and all the packet's chaff blocks
        are randomly interspersed with the single wheat block.  This
        method then returns a list of 3-tuples of the same form.
        Chaffed blocks will contain multiple instances of 3-tuples
        with the same serial number, but the only way to figure out
        which blocks are wheat and which are chaff is to perform the
        MAC hash and compare values.