A general technique to protect a cryptographic algorithm against side-channel attacks consists in masking all intermediate variables with a random value. For cryptographic algorithms combining Boolean operations with arithmetic operations, one must then perform conversions between Boolean masking and arithmetic masking. At CHES 2001, Goubin described a very elegant algorithm for converting from...

Addition, as one of the fundamental math operations, is applied widely in Very-large-scale integration systems and digital signal processing, such that computational speed a system depends mainly on its adders. There are various types adders based different methods. A novel adder proposed which performs addition path with fewer number levels, and, hence, higher lower power consumption. The goal...

In Very Large Scale Integration (VLSI) designs, Parallel prefix adders (PPA) have the better delay performance. A parallel prefix adder involves the execution of the operation in parallel which can be obtained by segmentation into smaller pieces. The binary addition is the basic arithmetic operation in digital circuits and it became essential in most of the digital systems including Arithmetic ...

The multiplication operation is present in many parts of a digital system or digital computer, most notably in signal processing, graphics and scientific computation. With advances in technology, various techniques have been proposed to design multipliers, which offer high speed, low power consumption and lesser area. Thus making them suitable for various high speeds, low power compact VLSI imp...

This paper aims to conceptually evolve a DNA processor modeling its computational ability and control aspects. DNA Encoding transforms the Radix 2 numbers to strings defined over the language set S {A,T,C,G}. A-Adenine, T-Thymine, C-Cytosine, GGuanine are the nucleotides forming the DNA language set. Arithmetic and logical operations are the basis for any implementation of a computing machine. ...

In this paper, we proposed a new number system for ALU. In binary number system carry is a major problem in arithmetical operation. We have to suffer O(n) carry propagation delay in n-bit binary operation. To overcome this problem signed digit is required for carry free arithmetical operation. Carry look ahead helps to improve the propagation delay to O(log n), but is bounded to a small number ...

This paper describes a parallel single-rail self-timed adder using dual gate MOSFETs which builds on a recursive formulation for performing multibit binary addition. Thus the addition is equivalent for those bits that do not need any carry chain propagation and the circuit attains logarithmic performance over random operand conditions without any special speedup circuitry or look-ahead schema. ...

Adder circuits play a remarkable role in modern microprocessor. Adders are widely used critical paths of arithmetic operation such as multiplication and subtraction. A Carry Select (CSA) design methodology using modified 4-bit Look-Ahead (CLA) has been proposed this research. The CLA hybrid logic style based for Generate (Gi) Propagate (Pi) functions order to improve performance reduce the numb...