CORR
2008
Springer
13 years 11 months ago
2008
Springer
In this paper, we evaluate available steganographic techniques for SIP (Session Initiation Protocol) that can be used for creating covert channels during signaling phase of VoIP (V...
CORR
2007
Springer
13 years 11 months ago
2007
Springer
An analysis of steganographic systems subject to the following perfect undetectability condition is presented in this paper. Following embedding of the message into the covertext,...
IH
1998
Springer
14 years 3 months ago
1998
Springer
We describe a steganographic system which embeds secret messages into a video stream. We examine the signal path which typically includes discrete cosine transformation (DCT) based...
IH
1999
Springer
14 years 3 months ago
1999
Springer
Abstract. This paper presents two main results. The first is a new approach to steganography in which data is encoded in correlations among the pixels in an image. Almost all prev...
IH
2001
Springer
14 years 4 months ago
2001
Springer
Many steganographic systems are weak against visual and statistical attacks. Systems without these weaknesses offer only a relatively small capacity for steganographic messages. T...