This paper presents a new approach for on-chip test pattern generation. The set of test patterns generated by a pseudo-random pattern generator (e.g., an LFSR) is transformed into a new set of patterns that provides the desired fault coverage. The trang5ormation is performed by a small amount of mapping logic that decodes sets of patterns that don't detect any new faults and maps them into patt...

With the increase of device complexity and test-data volume required to guarantee adequate defect coverage, external testing is becoming increasingly difficult and expensive. Logic Built-in Self Test (LBIST) is a viable alternative test strategy as it helps reduce dependence on an elaborate external test equipment, enables the application of a large number of random tests, and allows for at-spe...

| Wireless medium is inherently insecure due to its broadcast characteristics. As wireless communications become more prevalent and utilize the radio channel for transmission of critical information, the concern for security becomes an important issue. In this paper a new CDMA-based multiple access scheme for wireless LANs is proposed to provide enhanced security. Although most of the e orts in...

One of the most important challenges facing researchers is to find new methods protect data sent over Internet and prevent unauthorized access it. In this paper, we present a method for encrypting image divided into two stages. The first stage requires redistributing positions pixels by using key random numbers generated linear feedback shift registers then deoxyribonucleic acid rules. in previ...

This paper might fairly be said to fall between three stools: the presentation and justification of a number of related computational methods associated with LFSR sequences, including finding the order, recurrence and general term; the exploration of tutorial examples and survey of applications; and a rigorous treatment of one topic, the recursive construction of the number wall, which we belie...