Definition Edit

In a traffic analysis attack

the adversary is not able to directly interpret the contents of an email message, mostly due to the fact that the message is encrypted. However, since inference of information is still possible in certain circumstances (depending upon interaction or transaction context) from the observation of external traffic characteristics (volume and frequency of traffic between any two entities) and hence the occurrence of this type of attack constitutes a confidentiality threat.[1]

References Edit

  1. NIST Special Publication 800-177, at 17.

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