We examine the energy savings possible by re-mapping critical software loops from a microprocessor to configurable logic appearing on the same-chip in commodity chips now commercially available. That logic is typically intended to implement peripherals and coprocessors without increasing chip count – but we show that reduced software energy is an additional benefit, making such chips even more ...

CryptMT (Cryptographic Mersenne Twister) is an 8-bit pseudorandom integer generator for a stream cipher. It combines an F2-linear generator of period 219937 − 1 and a multiplicative filter with 32-bit memory. We analyze its security against some standard cryptanalytic attacks for filter generators. It is proved that CryptMT has strong resistance against them: CryptMT has a period of 219937 − 1,...

LFSR (Linear Feedback Shift Register) is commonly employed in various cryptography applications to generate pseudo-random numbers. The overall number of random state produced by the LFSR is determined by the feedback polynomial. LFSR is a shift register in which some of their outputs are taken in exclusive-OR format that forms the feedback path. So it capable to generate maximum of 2-1 random s...

The decision regarding the best suitable microprocessor for a given task is one of the most challenging assignments a hardware designer has to face. In this paper, we make a comparison of cycle-accurate VHDL clones of the 8-bit Atmel ATmega, the 16-bit Texas Instruments MSP430, and the 32-bit ARM Cortex-M0+. We investigate their runtime, chip area, power, and energy characteristics regarding El...

Interband transitions in GaInNAsSb/ GaAs single quantum wells ͑SQWs͒ with nominally identical nitrogen and antimony concentrations ͑2.5% N and 7% Sb͒ and varying indium concentrations ͑from 8% to 32%͒ have been investigated by contactless electroreflectance ͑CER͒. CER features related to optical transitions between the ground and excited states have been clearly observed. Energies of the QW transitions...

This paper presents new speed records for 128-bit secure elliptic-curve Diffie-Hellman key-exchange software on three different popular microcontroller architectures. We consider a 255-bit curve proposed by Bernstein known as Curve25519, which has also been adopted by the IETF. We optimize the X25519 key-exchange protocol proposed by Bernstein in 2006 for AVR ATmega 8-bit microcontrollers, MSP4...