Panning for security

Ebook Principles of information security (Fifth Edition): Part 1 includes contents: Chapter 1: introduction to information security; chapter 2: the need for security; chapter 3: legal, ethical, and professional issues in information security; chapter 4: planning for security; chapter 5: risk management.

326p haojiubujain03 24-07-2023 9 5   Download

This paper presents an image data hiding algorithm composing two models of frequency and image spaces. In comparison of well-known algorithms this algorithm can support high capacity for each image block, robustness and cryptographic security. By dicrete cosine transfer DCT, we transfer from image spaces to frequency space, using EO. algorithm to take middle frequency space, make 0, 1 matrix to hidding data, using Cheng-pan- Tseng algorithm to hidding , using invert dicrete cosine transfer rDCT to transfer image space, so the image has hidding data.

8p binhminhmuatrenngondoithonggio 09-06-2017 31 2   Download

The main focus of this publication is the link between South Africa’s grand pan-African ambitions, especially in the area of peace, security and governance, and its own capacity to pursue these objectives. Specifically, the paper examines Pretoria’s involvement in Africa, and internal capacity to support its mediation, peacekeeping and strengthening the abilities of African institutions for peacemaking. Further, it examines the challenges posed by tension between its pan-African and economic interests as well as power rivalry at the continental level, which have greatly limited its ability.

0p quatet 10-01-2013 36 1   Download

Ultra wideband (UWB) communication systems are characterized by high data rates, low cost, multipath immunity, and low power transmission. They are widely used in wireless communications, networking, radar, imaging, and positioning systems. In 2002, the Federal Communication Commission (FCC) legalized low power UWB emission between 3.1 GHz and 10.6 GHz for indoor communication devices stimulating many novel UWB applications such as personal area networks (PANs), accurate tracking and location, safety and homeland security....

0p ktcn_1 10-07-2012 84 6   Download