Hiding Secret Messages In Skype Silences

Orome1 writes "A group of researchers from the Institute of Telecommunications of the Warsaw University of Technology have devised a way to send and receive messages hidden in the data packets used to represent silences during a Skype call. After learning that Skype transmits voice data in 130-byte packets and the silences in 70-byte packets, the researchers came upon the idea of using the latter to conceal the sending and receiving of additional messages."

Comments

Re:There goes that idea

[Anonymous Coward]

It's not an exploit.

Re:Eloquent silence

[Anonymous Coward]

+1

Skype is far from the first VoIP protocol to do this.

http://en.wikipedia.org/wiki/Voice_activity_detection
http://en.wikipedia.org/wiki/Comfort_noise