TY - JOUR
T1 - A sequential distinguisher for covert channel identification
AU - Subbalakshmi, K. P.
AU - Chandramouli, Rajarathnam
AU - Ranganathan, Nagarajan
PY - 2007
Y1 - 2007
N2 - Covert channels are of two types: (a) timing channel and (b) storage channel. Most previous works have studied these channels from the encoder's perspective, namely, information theoretic capacity, algorithms and protocols for hiding information etc. This paper investigates the covert channel problem from an passive adversary's perspective. A sequential distinguisher for storage channel identification by an adversary is proposed and its properties are derived analytically. The impact of correlation in the observations received by the adversary is studied analytically as well as numerically.
AB - Covert channels are of two types: (a) timing channel and (b) storage channel. Most previous works have studied these channels from the encoder's perspective, namely, information theoretic capacity, algorithms and protocols for hiding information etc. This paper investigates the covert channel problem from an passive adversary's perspective. A sequential distinguisher for storage channel identification by an adversary is proposed and its properties are derived analytically. The impact of correlation in the observations received by the adversary is studied analytically as well as numerically.
KW - Covert channel
KW - Error probability
KW - Hypothesis testing
KW - Passive adversary
KW - Random walk
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M3 - Article
AN - SCOPUS:84874806402
SN - 1816-353X
VL - 5
SP - 274
EP - 282
JO - International Journal of Network Security
JF - International Journal of Network Security
IS - 3
ER -