Hwang and Li (see IEEE Trans. Consumer Electron., vol.46, no.1, p.28-30, 2000) proposed
a new remote authentication scheme using smart cards. Their scheme is based on the …

In this paper, a tampered image recovery scheme is proposed by creating an index table of
the original image via vector quantization (VQ) and embedding it into the original image as a …

Due to the advances made in Information and Communication Technologies (ICT), e-Government
users can easily use the available services from places and at time that are …

In 1999, Yang and Shieh proposed a timestamp-based password authentication scheme with
smart cards. However, Chan and Cheng showed that it was insecure because the scheme …

With the growth of Internet, Image compression has become a popular issue. Since the
traditional Vector Quantization (VQ) produces compressed images with a quality at about 27 to …

In this paper, the concepts of vector quantization (VQ) and association rules in data mining
are employed to propose a robust watermarking technique. Unlike ordinary or traditional …

A novel watermarking scheme is proposed that could substantially improve current watermarking
techniques. This scheme exploits the features of micro images of watermarks to build …

Nowadays, image authentication techniques are widely applied to digital multimedia to
address their fraudulent and illegal use. Digital multimedia plays a vital role in various real time …

Recently, sensor networks have emerged as a high-impact research area, and a number of
high profile applications have been proposed. Although significant progress has already …

In 2001, Lin et al. proposed an optimal strong-password authentication protocol called the
OSAP protocol. However, Chen and Ku pointed out that it is vulnerable to the stolen-verifier …