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Constant Length Padding
: Exterior Security, Information Disclosure
An anonymity preserving node has to receive packets from many different nodes to create the
anonymity set. If the node implements representation morphing or layered encryption,
then after the encoding change the size of the packet changes. This change can be
traced back to the original packet and by backtracking an attacker can compromise
How can this be avoided?
Make all the data packets to be of same length. After the encoding, add dummy padding at the end of
the packet to make the packet of same size of the input data packet.
Constant length padding in Morphmix.
Representation Morphing, Layered Encryption
Hafiz Privacy Patterns
Anonymity, Privacy, Packet
Last modified: May 05, 2012
and Maintained by: Munawar Hafiz