27 search results - page 3 / 6 » Large encrypting binary images with higher security |
JDCTA
2010
13 years 17 days ago
2010
Perceptual transparency and robustness are conflicting requirements. To ensure the security of the watermarkhow to choose the embedding position and intensity is a difficult probl...
ICASSP
2008
IEEE
14 years 6 days ago
2008
IEEE
Speech privacy techniques are used to scramble clear speech into an unintelligible signal in order to avoid eavesdropping. Some analog speech-privacy equipments (scramblers) have ...
EUROCRYPT
2010
Springer
13 years 10 months ago
2010
Springer
We construct a simple public-key encryption scheme that supports polynomially many additions and one multiplication, similar to the cryptosystem of Boneh, Goh, and Nissim (BGN). S...
ICIP
2005
IEEE
14 years 7 months ago
2005
IEEE
This paper presents a novel Mod-4 steganographic method in discrete cosine transform (DCT) domain. A group of 2?2 quantized DCT coefficients (GQC) is selected as the valid embeddi...
GIS
2009
ACM
14 years 6 months ago
2009
ACM
Modern geographic databases can contain a large volume of data that need to be distributed to subscribed customers. The data can be modeled as a cube, where typical dimensions inc...