Low power consumption is a primary concern in many CMOS image-sensor applications. As the resolution of these sensors has increased while maintaining or increasing their frame rates, A/D conversion has become the dominant component of power consumption [1]. Conventional image compression can help reduce the readout rate [2] (and hence its power consumption), but cannot reduce the A/D conversion...

AES is the best known and most widely used block cipher. Its three versions (AES-128, AES-192, and AES-256) differ in their key sizes (128 bits, 192 bits and 256 bits) and in their number of rounds (10, 12, and 14, respectively). While for AES-128, there are no known attacks faster than exhaustive search, AES-192 and AES-256 were recently shown to be breakable by attacks which require 2 and 2 t...

AES is the best known and most widely used block cipher. Its three versions (AES128, AES-192, and AES-256) differ in their key sizes (128 bits, 192 bits and 256 bits) and in their number of rounds (10, 12, and 14, respectively). In the case of AES-128, there is no known attack which is faster than the 2 complexity of exhaustive search. However, AES-192 and AES-256 were recently shown to be brea...

An optimized memory organization has been designed for the hierarchical coding of wavelet subbands. A better economy in time and resources can be accomplished by changing the RAM access pattern and using multiple location access at each clock instant. The bit-planes are distributed along the z-direction and the x − y plane contains 256 × 256 number of memory elements. The memory plane selection...

A spatial light modulator (SLM) is a device that can impress information on an optical wave front. An electrically addressed SLM translates information from the electronic domain to the optical domain. The applications for SLM's are numerous; they inciude coherent optical processing applications, data routing, data input to optical processing systems, and information display. Spatial light modu...