71 search results - page 13 / 15 » Communication-friendly encryption of multimedia |
CORR
2010
Springer
13 years 5 months ago
2010
Springer
Motivated by the work of Uehara et al. [1], an improved method to recover DC coefficients from AC coefficients of DCT-transformed images is investigated in this work, which finds ...
ICMCS
2007
IEEE
13 years 11 months ago
2007
IEEE
Some (k, n)-threshold image secret sharing schemes encrypt the secret image into n noise-like shadow images with size 1/k times that of the original secret image. The small size o...
MDM
2007
Springer
13 years 11 months ago
2007
Springer
Smart environments and wearables will make the storage and subsequent sharing of digitized multimedia diaries and meeting protocols – whom we meet, or what we say or do – chea...
MMSEC
2004
ACM
13 years 10 months ago
2004
ACM
CSS, the first system to protect multimedia content on the new DVD medium failed badly, because both its encryption algorithm and its key management could easily be broken. A new ...
ASIACRYPT
2003
Springer
13 years 10 months ago
2003
Springer
In this paper1 we propose a new symmetric block cipher with the following paradoxical traceability properties: it is computationally easy to derive many equivalent secret keys prov...