Eliminating Steganography in Internet Traffic with Active Wardens

Fisk, Gina; Fisk, Mike; Papadopoulos, Christos; Neil, Joshua

doi:10.1007/3-540-36415-3_2

Cited by 110 publications

(131 citation statements)

References 18 publications

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“…For 2-parameter Weibull distribution considered in Section 4.1 (4)(5)(6)(7)(8)(9)(10) and (4)(5)(6)(7)(8)(9)(10)(11) For chosen parameters from Tab.1 we obtain results shown in Fig. 9.…”

Section: Upper Limit Of E(d|d>t) Is As Follows (4-9)mentioning

confidence: 93%

“…6. If S R (t) is the amount of data remaining to be sent covertly at instant t of the call then the insertion rate at time t is (4-13) (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14) where IR Q (t) is calculated as described in Section 3. Fig.…”

Section: Upper Limit Of E(d|d>t) Is As Follows (4-9)mentioning

confidence: 99%

“…Consider that if IR(t) > IR Q for t < t' then (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15) describes this part of the steganogram which will be sent if we do not consider the limitation IR(t) < IR Q (t) in range [0, t'). Such "arrear" can be aligned by increasing IR(t) for t > t' (with limitation IR(t) < IR Q (t)) this situation is illustrated in Fig.…”

Section: Fig 11 Relationship Between Ir(t) and Ir Qmentioning

confidence: 99%

“…for case of dependence of IR(t) on E(D|D>t) it is (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) where p E(D) and p E(D|D>t) denote LACK packet loss probability for both of above cases respectively. That is why call quality "gain" equals …”

Section: Dependence Of Ir(t) On Steganogram Size Under Limitation Ir(mentioning

confidence: 99%

See 3 more Smart Citations

On steganography in lost audio packets

Mazurczyk

Lubacz

Szczypiorski

2011

Security Comm Networks

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Abstract. The paper presents a new hidden data insertion procedure based on estimated probability of the remaining time of the call for steganographic method called LACK (Lost Audio PaCKets steganography). LACK provides hidden communication for real-time services like Voice over IP. The analytical results presented in this paper concern the influence of LACK's hidden data insertion procedures on the method's impact on quality of voice transmission and its resistance to steganalysis. The proposed hidden data insertion procedure is also compared to previous steganogram insertion approach based on estimated remaining average call duration.

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“…For 2-parameter Weibull distribution considered in Section 4.1 (4)(5)(6)(7)(8)(9)(10) and (4)(5)(6)(7)(8)(9)(10)(11) For chosen parameters from Tab.1 we obtain results shown in Fig. 9.…”

Section: Upper Limit Of E(d|d>t) Is As Follows (4-9)mentioning

confidence: 93%

Section: Upper Limit Of E(d|d>t) Is As Follows (4-9)mentioning

confidence: 99%

Section: Fig 11 Relationship Between Ir(t) and Ir Qmentioning

confidence: 99%

Section: Dependence Of Ir(t) On Steganogram Size Under Limitation Ir(mentioning

confidence: 99%

See 2 more Smart Citations

On steganography in lost audio packets

Mazurczyk

Lubacz

Szczypiorski

2011

Security Comm Networks

View full text Add to dashboard Cite

show abstract

“…Fisk et al (2003) defined the concepts of structured and unstructured carriers. A carrier specifies the features or characteristics used to hide the information in the cover.…”

Section: Steganographymentioning

confidence: 99%