278 search results - page 20 / 56 » Variants of Spreading Messages |
FSE
2008
Springer
13 years 9 months ago
2008
Springer
In this article we find collisions for step-reduced SHA-256. We develop a differential that holds with high probability if the message satisfies certain conditions. We solve the eq...
MASS
2010
13 years 5 months ago
2010
Abstract--Spread spectrum techniques (e.g., Frequency Hopping (FH), Direct Sequence Spread Spectrum (DSSS)) have been widely used for anti-jamming wireless communications. Such tec...
ACSAC
2006
IEEE
14 years 1 months ago
2006
IEEE
The Multimedia Messaging Service (MMS) is becoming more popular, as mobile phones integrate audio and video recording functionality. Multimedia messages are delivered to users thr...
COMCOM
2006
13 years 7 months ago
2006
We consider the problem of reliable data dissemination in the context of wireless sensor networks. For some application scenarios, reliable data dissemination to all nodes is nece...
KDD
2009
ACM
14 years 8 months ago
2009
ACM
Tracking new topics, ideas, and "memes" across the Web has been an issue of considerable interest. Recent work has developed methods for tracking topic shifts over long ...